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Another_Lurker
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Mar 31, 2011#50
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
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holyfamilypenguin
4,559
3
Mar 31, 2011#51
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Management thank you for taking down. I did catch another offensive posting and the management thanked me for doing so and took it done as well. I did say: “not to cast any aspersions (consider the source). Larry 1951 does a fine job as I think the overwhelming majority would agree. I’m sorry if you find my linked postings irrelevant or similarly offensive. Again. KK, thank you for making a point. I hope I didn’t offend you. Your postings I always value however divergent we may be in our views. I’m happy the word “shingle” was helpful in your research. This is what makes us what is rightly called an estimable Forum.
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The Apache Kid
Mar 31, 2011#52
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Hi Alan.
I was somewhat suprised that you could apply mathematics to to what is essentialy a spanking with a solid non absorbent object and because it’s non absorbent I can only assume that the entire force of impact is transfered to the bottom-in other words no give as say with a cane or,indeed the open hand.
So using this as a proven example I can only immagine that a Hairbrush would effectively work in much the same manner-and equaly as painful.
A slipper on the other hand would prove less rigid therefore able to absorb a certain ammount of the impact and in doing so impart a less severe punishment at the same time as explaining why a slippering is popular with parents in particular as a way of giving a child a bruise free spanking.
Of course parents also see the Hairbrush as a very effective punishment tool and I can’t possibly see this being applied vigorously to a childs bare bottom without leaving light to moderate bruising which,on the whole,any normal parent would wish to avoid.
Therefore if a paddling is so devistating and in consequence leave very heavy bruising surely this form of punishment should only be limited to a certain age group as with a school caning.
I do believe that the Law permits ‘reasonable ‘bruising brought about by both domestic and corporal punishment and some would even go as far as to say-‘a sign of good discipline’ but I’m not at all convinced that 10 hard swats with a paddle would,in a court of law, be defined as acceptable and within the bruising limits expected from ‘healthy’ chastisement.
Just a thought that’s all.
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AlanTuringCodebreaker
1,275
Mar 31, 2011#53
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
willyeckaslike:
I don’t think anyone’s bottom is made of cast iron! What happens when the paddle hits is that the flesh squidges sideways; if there were any reflection of a shock, it wouldn’t be sufficiently concentrated to do any damage.
If you want an explosion, you’d better paste your paddle with gunpowder.
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Another_Lurker
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Mar 31, 2011#54
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
<div style=”width:100%;background-image:url(/realm/A_L_123/A_L_trg.gif);”>Sorry American Way, but if you’re going to get prissy and cause items to be deleted from other people’s posts, in this case an item which exactly illustrated the point the contributor was making and which had been regarded as inoffensive for over a year, I’m going to get prissy about your definitions!
You say to KK:
What makes us what is rightly called an estimable Forum is that I used the term in one of my earliest posts here, as ‘A Lurker’ when wining a Management Christmas competition, and various people have followed suite since! </div>
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JennyBr
1,776
2
Mar 31, 2011#55
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Hi Alan Turing
I suspect you’d be disappointed. Mercury(II) Fulminate, Lead Azide or Nitrogen Triiodide will give a more satisfying result.
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AlanTuringCodebreaker
1,275
Mar 31, 2011#56
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Jenny:
I was thinking of the toy guns we had “when I were a lad”, which had little capsules which produced (rather small) explosions. I’d be surprised if any of the chemicals you mentioned were used!
Of course gunpowder doesn’t really explode, it just burns rather quickly. Perhaps the (very unstable) trinitroglycerine would be suitable instead?
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Another_Lurker
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Mar 31, 2011#57
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
<div style=”width:100%;background-image:url(/realm/A_L_123/A_L_trg.gif);”>Hi Alan Turing. This fascinating page, which I am sure will appeal to Jenny if indeed she doesn’t already know of it, says that the chemical used in toy gun caps is a composition known as ‘Armstrong’s Mixture’, modified by the addition of 5% boron carbide.
The full formula for the modified Armstrong’s Mixture is given, but the critical component is apparently the boron carbide. It appears that toy gun caps explode due to friction as they are compressed, and the carbide dust provides this friction.
And the on-topic bit: In, ahem, adult videos the paddler is often shown rubbing the paddle over the posterior of the unfortunate recipient prior to administering a stroke. With a coating of modified Armstrong’s Mixture on the paddle the friction resulting from said rubbing might obviate the need for the paddler to exert him/herself any further! </div>
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KKxyz
3,590
53
Mar 31, 2011#58
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Nitrogen triiodide is the inorganic compound with the formula NI3. It is an extremely sensitive contact explosive: small quantities explode with a gunpowder-like snap when touched even lightly, releasing a purple cloud of iodine vapor. (Wikipedia).
This is a delightful compound, and very useful. It disinfects the wounds it causes and prevents goitre.
Do not place a few crystals of elemental iodine on a circle of thick filter paper and then wet the crystals with a drop of concentrated ammonia solution and allow to dry. In particular, do not use a larger quantity of iodine in the school laboratory prep room and then flick the drying mixture with a towel as this will disperse the mixture before it becomes explosive. If you do this, the whole room will become explosive for days after. Merely walking in will set of numerous micro-explosions as will picking up a bottle of sulphuric acid. It is not safe to hope the chemistry teacher will be amused rather than outraged.
Mixtures of silver nitrate and magnesium powder should not be stirred with a wet wooden stick, especially straight after being warned by the cleaner that the lab boys “will blow you up.” If you do, you may lose your eye brows and have your face blackend.
Then there was potassium chlorate and sugar, …..
School chemistry used to be great fun.
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Another_Lurker
10K
256
Mar 31, 2011#59
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
<div style=”width:100%;background-image:url(/realm/A_L_123/A_L_trg.gif);”>Hi KK. Hmm, interesting! But you’d never have risked any of that with my Chemistry Master, Dr CN Jackson, a most excellent teacher in every way. He never to my knowledge used corporal punishment [on-topic bit] but his fore-initials very aptly reflected what you’d wish you’d swallowed first if you incurred his wrath!
His only Achilles’ Heel was Chlorine, generally assumed to be due to an accident early in his career. Any boy brave enough to utter the magic words “Sir, I think I’ve accidentally made Chlorine” was at least guaranteed the drama of a lab evacuation before the inevitable and unpleasant reckoning.</div>
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willyeckaslike
Apr 01, 2011#60
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
I say you chaps, I have got an absolutely spiffing wheeze here, this will put Bunters japes in the shade.
Get some of that Nitrogen triiodide and rub it on the back of your trousers, or trollys if you are a girl.
When the beak canes you it will cause a little explosion much to everyone amusement, but the best part will be the purple cloud that follows, causing a mass exodus of the form room, and a half day holiday.
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KKxyz
3,590
53
Apr 02, 2011#61
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
My loving parents gave me a copy of The Young Chemist by Sherwood Taylor and a chemisty set with real chemicals when I was quite young. My grandfather showed me how to make gunpowder (75:15:10 are the proportions, if I remember correctly). Doubtless, they would be jailed and I would be put into care if they did it today. I still have all my fingers and eyes.
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Another_Lurker
10K
256
Apr 02, 2011#62
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
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KKxyz
3,590
53
Nov 25, 2011#63
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
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Another_Lurker
10K
256
Nov 25, 2011#64
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
<div style=”width:100%;background-image:url(/realm/A_L_123/A_L_trg.gif);”>Hi KK,
A most interesting and informative diagram if I may say so. In addition to such an elegant method of conveying the complex information I particularly admire the red background. </div>
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AlanTuringCodebreaker
1,275
Nov 25, 2011#65
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Well, I’m not impressed by the precision of the diagram! I have no problem with the width axis; units can be either metric or imperial. But what are the units of “flexibility”? How do they make a slipper more flexible than a cane or birch? (Well, you could have a very stiff cane, or a very floppy slipper; but then I’d expect to see a significant range of values given on the diagram.) And how, on this diagram, do you represent the possibility of flexibility being limited by breaking, rather than by stiffness?
I’d refer this back to the author for further development! (Though I rather liked the flesh-coloured hue chosen for the background. )
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KKxyz
3,590
53
Nov 25, 2011#66
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Yes, colours are confusing. The background colour in the diagram has a RGB hexidecimal code value of B3C7DA
The scales in my diagram are not linear or necessarily monotonic.
Yes, in this case flexibility means able to be bent without breaking rather than stiffness. A three dimensional diagram might be required to show the three main attributes.
A whip cord is very flexible but not at all stiff (force required to bend). It is much narrower than a wooden paddle which is very stiff and inflexible. The two impliments are very different.
Birch twigs are much less flexible than a whip cord and significantly more stiff.
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Nov 26, 2011#67
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
In my classification of implements above the flexibility axis is meant to relate to the ability of the implement to bend to match the shape of the target. The contact area of a flexible device is greater than that of a rigid device of the same type and size. Thus, the severity of “wounding” caused by a flexible device is likely to be less than that of a rigid device as the energy is spread over a larger area.
One concern with over-flexible devices is “wrap around”. If the tip lands “long” they can bend and impact on delicate parts. They energy of a flexible device tends to concentrate in its tip during wrap around so the wounds can be servere.
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holyfamilypenguin
4,559
3
Dec 07, 2011#68
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Another Lurker. Maybe your imagination was stirred for your graphic under You Be The Judge because of prof n post under the I am a lucky winner thread of September 24th. prof n. N.B. The holes in the paddle. It was a ten swat paddling as well.
CLICK
A picture of a lady dispensing corporal punishment with heels is not altogether out of the realm of possibility for they are trying to depict a realistic school paddling. This is a rather dicey site but the image is modest and there is no need to navigate from there so with that caveat feel free to click.
CLICK
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Another_Lurker
10K
256
Dec 07, 2011#69
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
<div style=”width:100%;background-image:url(/realm/A_L_123/A_L_trg.gif);”>Hi American Way,
I see no heels – or pencil skirts for that matter! And I suspect that anybody using a paddle like that in a school would be looking for a new job pretty quickly. Nice brace position though, but I suspect you know who would want the hands a touch lower on the wall.</div>
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Chirob
1,045
Dec 07, 2011#70
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
I happen to know the woman holding that paddle with the holes drilled in it. The way she is holding it is pretty standard when it’s a girl getting paddled on that website. I once saw a clip of that same woman paddling a guy. You could describe it as 180 degree difference. She had a firm grip. She was using all of her strength and putting her weight behind every swat. There were strands of wet hair in her eyes and she looked like she was getting a workout.
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holyfamilypenguin
4,559
3
Dec 07, 2011#71
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
The usual attire of the paddler is heels but don’t navigate the site to disprove me. This explains the placement of her free hand. I wasn’t thinking of the pencil skirt. Only under extraordinary circumstances would that hinder or modify the onerous duty ( to steal a page from DD) at hand. The girl, albeit half her age, being paddled would seem more akin in appearance to the teacher you used in your celebratory posts. Your skills always accrues to the benefit of this estimable Forum, however the large gap between your imagination and reality may be.
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Guest
Dec 07, 2011#72
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Hi American Way ,
Brave Man , posting a still from one of the Alpine stables. These guys have more law suits under their belts, and are one of the most aggressive defenders of their ‘images’ around . Still, the beaver is a protected species , I believe!
Still a very good ‘brace ‘ position , but that paddle !!! The holes don’t appear to be beveled , and the edges have been left sharp and unturned…and it could well be pine which splinters. I wonder if Renee would care to point out this is an unapproved model? She doesn’t look like she’d be very receptive to such advice !!!!!!!!
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KKxyz
3,590
53
Oct 13, 2012#73
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
I have cited this patent previously in The earliest mention of the school paddle in the USA thread. (Oct 20, 2010). I also cited a contemporary newspaper report of the invention in the same thread (Oct 13, 2012). The item probably belongs better to this science thread.
There are three requirements that must be met before a patent can be granted novelty, utility and not obvious to a skilled practitioner.
A paddle designed to break would seem to be both novel and not obvious. Most practitioners, skilled or not, have been focused on non-breakable paddles, the merits of oak versus pine, Lexan polycarbonate, etc.
However, the patent is weak, if you would excuse the expression and accept the opinion of a patented inventor but not legal expert, in its lack of proof of utility / practicality of the design. No experimental data is presented. There is no actual proof it works or is useful.
For a paddle to be effective it must have a certain minimum weight and to be travelling at a certain minimum speed at time of impact. These minimums have yet to be established. After impact, the paddler has little effect on the consequences notwithstanding the supposed benefits of carry-through. The paddle slows quickly and there is no time, or distance, for the paddler to add further kinetic energy after the impact. Carry-through – aiming for a point beyond the target – ensures acceleration is maintained right up to impact, but increases the risk of breakage.
For a paddle to be safe it needs to be smooth, with no sharp edges, sufficiently broad so that the edges do not make forceful contact, not too heavy and travelling not too fast.
The only way a breakable handle can moderate the energy of the strokes, and the risk of injury, is if it limits the speed by limiting the acceleration, that is, by limiting the force applied during the main part of the swing.
The merits of the patented paddle, as designed, are twofold. Firstly, it will break if applied too hard, and so terminate the paddling or suspend it while the paddle is reassembled, perhaps allowing tempers to cool and the need for further paddling to pass. Secondly, it will curb the enthusiasm of the paddler. Acceleration must be reduced, even if the length of the swing is increased, and all attempts at carry-through must be abandoned. That is, the paddler must stop acceleration some time before impact and allow the paddle to coast.
I would suggest that if a paddle is to be used at all in schools, it needs to be effective. It must cause more than transient mild discomfort except, perhaps, for the very young first-timers where symbolism alone may suffice.
In my opinion, the best way to make a paddle safe is to limit its weight at the time of application. Weight is more important than the thickness of the blade although the two are obviously directly related; depending upon the material the paddle is made of.
Secondly, for a paddle to be safe it needs to flex to at least partially match the curvature of the target, so spreading its energy and not crushing deep tissues against bone. However, the paddle should not be too flexible to avoid any risk of the end making forceful contact, especially with the hip. (“Wrap-around” is a hazard with straps.)
But enough theory! Experiments are required.
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Oct 20, 2012#74
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Alan Turing was not the first to consider force applied to a layer of flesh.
Source (PDF)
Journal of Rehabilitation Research and Development, Vol. 30, No . 2, 1993. Pages 205-209
A Technical Brief:
Modelling the mechanics of narrowly-contained soft tissues: The effects of specification of Poisson’s Ratio William M . Vannah, PhD and Dudley S . Childress, PhD
Abstract. Many soft tissues are considered to be virtually incompressible. A number of recent analyses of the mechanics of these tissues have used Poisson’s ratios in the range of 0.45 to 0 .49 with little or no documentation, the apparent assumption being that a small change in Poisson’s ratio will not significantly affect the results . We demonstrate here that the mechanics of a narrowly contained soft tissue are, instead, strongly sensitive to small changes in compressibility about the incompressible limit . Relevant practical examples include analysis of the mechanics of soft tissues within the sockets of artificial legs, pressure sore problems, and the calculation of strains within the soft tissues of a fracture gap.
Except:
Layer Model
Consider a model consisting of an axi-symmetric flat disk of tissue, 1 .0 cm high and 10 .0 cm in radius, compressed as if between two flat, rigid plates (Figure 2a and 2b; note that the “plates” are imaginary and are, therefore, not shown) . The upper surface is displaced downward 0.5 mm, and the lower surface is fixed . The tissue is bonded to the “plates.”
This model is solved using the finite element method. Conventional finite element formulations become poor approximations – behaving too stiffly – as Poisson’s ratio approaches 0.5 (refs 5,6) . To avoid this artificial stiffening, we used an unconventional formulation which does allow use of Poisson’s ratios closely approaching the incompressible limit.
Siméon Poisson was a French mathematician and scientist who studied the stretching and compression of elastic materials. He measured, among other things, the ratio of the change in length to the change in width when things were stretched or compressed. This ratio takes a value between 0 to 0.5 for many common materials. It turns out to be very important property in studies of elastic materials. I have previously argued the Poisson ratio for flesh must be very close to 0.5 unless there is a migration of blood.
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Feb 26, 2016#75
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
High school delinquents in the same grade vary greatly in their size and degree of physical development. If the same paddle is used with the same force on each, for the same offence, their punishments are likely to be greatly different.
My guess is that poorly-padded, bony ectomorphs will be bruised and hurt the most and muscular mesomorphs the least. This is quite apart from psychological and emotional aspects. My further guess is that adventurous boys into robust sports, who tend to be meso-ecto types, will be able to deal with pain better than others and less deterred and therefore more paddled.
It is a pity that the OCR stats do not include the somatotype of those paddled as well as well as race.
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Feb 29, 2016#76
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Many believe that similar offences should be similarly punished. This has lead to the standardization of paddle sizes, if not weights, and often near fixed tariffs for various offences. More difficult, is ensuring similar paddle swats impact similarly when applied to a diversity of delinquents of similar culpability. Matching the punishment to the age of the delinquent, or to their school grade or year, is unsatisfactory.
I have already suggested that somatotype is likely to have a big effect. A heavy paddle landing on a bony posterior is likely to be far more injurious and painful than the same swat landing on a muscled or plump rump.
In my day, 14 and 15-tear old boys were the naughtiest. This was the very age at which there is the greatest disparity in physical maturity. A few boys have barely begun puberty while others have near adult physiques. Most will be at or near peak rate of change.
It seems most unfair that a well-developed mesomorph and an under-developed ectomorph might receive similar paddle swats if guilty of the same offence. Relying on the judgement and skill of the paddler to adjust the force of the swats to suit is highly problematic.
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dphil2112
71
Mar 13, 2016#77
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
So would there be a big difference between a hard paddle and a plimsoll?
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KKxyz
3,590
53
Apr 05, 2016#78
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
See: OI IO wounds this thread, Jan 31, 2016 2:53 AM.
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Apr 05, 2016#79
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Phil: So would there be a big difference between a hard paddle and a plimsoll?
Experiments are required to get a definitive answer.
The paddle is likely to be longer and easier to grasp than a Plimsoll so it should be easier to lay on a harder swat with the paddle. I think the greater resulting kinetic energy might outweigh the ability of the Plimsoll to bend to match the curvature of the target.
Double-blind cross-over studies are the gold standard for experiments involving human subjects but are scarcely practical in the present case. Participants can’t be kept in the dark as to the implement used. Recruiting subjects and gaining ethical approval is likely to be difficult.
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Jun 26, 2016#80
The adversary approach to deciding questions of science tends to create more heat than light and turns non-scientists off. Alan, perhaps we can have a private debate and then post a consensus report?
Paddle science The branch of science called mechanics applies and more still besides.
Newtons laws apply – momentum and kinetic energy are important.
Paddle-induced disturbance in human flesh travel at the speed of sound for soft tissue which is about 1540 m/sec and much faster than in air.
The contact time is very short before the paddle bounces off (milli seconds).
The rheology of flesh is more complex than simple visco-elastic and flesh is not isotropic (properties differ in different directions).
There is no perceptible change in the volume of the flesh during a paddle strike although there is significant distortion as shown in this photo of a light tawse strike. Steep momentary pressure gradients occur during the impact.
Serious albeit inconspicuous injury will occur if a heavy paddle (irresistible force) strikes an unyielding pelvis (immovable object) with flesh sandwiched between.
Click to expand…
Real school paddlings can not be videoed for public showing for various good reasons. Simulations often lack veracity or come from dubious or pornographic sites. Birthday paddlings are generally free from these objections although they vary greatly in style and the quality of the videoing.
A number of points in no particular order:
1. Some how, the paddle was to hand. Was the paddling planned or does the gym keep one?
2. The 18 y.o. is robust and takes his punishment well. There is slight faltering towards the end but this may be as much from holding a one handed press-up stance as it is from the pain taking effect.
3. The paddler has a difficult task adjusting the force of the swats to the case in hand. If too hard serious internal injury is likely – the swats all land on the same spot. If too mild the ceremony looses any meaning.
4. Where does the tradition come from? What is its origins?
5. The bystander is mildly amused. The wrestlers show no interest. Nor the others visible in the mirror.
6. The fit of the shorts prevents easy displacement of flesh when the paddle lands.
7. The “smacks” are loud.
8. It is possible that the boy’s family, classmates and friends might each decide a they should inflict a birthday spankings too.
9. The paddle looks dangerously thick and heavy.
Video: https://www.youtube.com/watch?v=q2ELyXhLdxE
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Guest
Jun 27, 2016#81
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Hello KK,
I can’t say I approve of birthday paddlings. To me a paddling is a punishment, and as such it should hurt- a lot. You may have all sorts of ceremonies but the birthday spanking routine strikes me as akin to hazing. i would NEVER allow it in a school I managed. I’m sorry if I’m a spoil sport but to me a paddle has one purpose alone, as a punishment paddle.
When I could paddle in class as a teacher, and if I ever do it now in the gym, if the paddle comes out its because there is a transgression that needs a consequence. I don’t do as some teaches and use a paddle as a fun teaching aid. Students need to know it is a serious instrument with a clear and unambiguous purpose.I never jest about paddling , its unfair both to the student and to the class as a whole. They need to know where they stand. Equally when paddling in class, if the paddle ever came out it was never to threaten or play act it was to administer a serious punishment.
To respond to a couple of your points
A number of points in no particular order:
Some how, the paddle was to hand. Was the paddling planned or does the gym keep one?
Where coaches can paddle, there m normally are paddles in the office or store.
The 18 y.o. is robust and takes his punishment well. There is slight faltering towards the end but this may be as much from holding a one handed press-up stance as it is from the pain taking effect. …The paddler has a difficult task adjusting the force of the swats to the case in hand. If too hard serious internal injury is likely – the swats all land on the same spot. If too mild the ceremony looses any meaning.
It seems to me you sum up the problem of such ‘fun’ ( for whom? ) occasions. Moreover the one handed pressup strikes me as ill thought out and downright dangerous even with his ‘taps’ . Even one of half my normal strength licks would floor him in one from that ridiculous position.
Where does the tradition come from? What is its origins?
I don’t know. I have come across it but not its history. Maybe american Way can suggest?
The bystander is mildly amused. The wrestlers show no interest. Nor the others visible in the mirror.
To my mind as you know punishment should be given in private even if a grup is involved, and/or the effects are obvious afterwards to others.
The fit of the shorts prevents easy displacement of flesh when the paddle lands.
Noted and agreed.
The “smacks” are loud.
Probably the acoustics, although my smacks always are loud and penetrate my office and the waiting room . I’ve been told they can be heard distinctly in the corridor outside the outer office.
The paddle looks dangerously thick and heavy.
Not abnormally so I think for senior hi, but it may depend on the angle. I prefer lexan of course over wood. I’d say more if I had dimensions even from the video.
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Another_Lurker
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256
Jun 28, 2016#82
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
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Guest
Jun 30, 2016#83
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Hello Another Lurker,
Yes there is indeed a meeting of minds as to the efficacy of gym shorts in the paddling process.
you ask
; is the mandated requirement, those shorts only between me and the paddle, the best way to go?
Yes. Indeed it is the only way to go if I mandate it ! Shorts and the truncated pyramid make sure that I will be able to deliver a memorable experience that serves purpose. Geddit?!
Unlike elementary and middle school teachers in Tennessee we don’t mess about! No virtual paddling just a good effective real one from a 6′ 3″ female athlete in peak condition.
Now did you say lexan or wood?
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2015holyfamilypenguin
4,320
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Jul 12, 2016#84
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
debbie112 Which one of these instruments of correction would you approve for use in school and I assume as well as in your home? American Way
CLICK
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Another_Lurker
10K
256
Jul 13, 2016#85
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
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KKxyz
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53
Jul 15, 2016#86
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
How many paddles and of what design are required to properly equip an independent school district? What is the total cost if purchased from EAL’s shop?
One might imagine even the smallest school needs two paddles for each age or culpability group within the school – one main paddle and a spare. A large high school doubtless needs a good selection.
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Another_Lurker
Jul 15, 2016#87
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
<div style=”width:100%;background-image:url(“/realm/A_L_123/A_L_trg.gif”);”>Hello KK,
Definitely not my paddle shop. I was merely commenting on the link provided on July 12 2016, 3:50 AM in the thread above by American Way.
As regards how many paddles a large High School might require, I would have thought not very many at all. The situation in Elementary schools may possibly be different, but it appears unusual now for public schools in the US to allow individual teachers to paddle students in Middle schools or High Schools. Instead corporal punishment is dispensed centrally, with students being sent to ‘the office’ for this to be dealt with.
Two or three authorised paddlers should suffice for even a large High school. Generally, though not exclusively, these seem to be Principals or Assistant Principals or other senior personnel from the administrative side of the school staff. While the sex of the student might determine which authorised paddler they are directed to I doubt that distinction is necessary, or indeed made, between either age or sex of students as regard the paddle used. One size probably fits all. Spares shouldn’t be required as in the event of theft, loss or breakage an authorised paddler could simply borrow from another authorised paddler until a replacement could be obtained. The holding of excessive stocks is a major contributor to business failure, and these days schools are businesses.
So hopefully no large requirement for paddles, even in a large ISD with more than one High School. However if there are any ISDs which do find themselves with a vast budgetary provision for paddles which they wish to reduce I am happy to offer my services as provisioning agent. It is clear now that despite my efforts in this Forum to promote and advance her political career I am not going to get a phone call with a tempting offer of a plumb cabinet post from our new Prime Minister. Such is politics at the top level. But no matter, there’s always another day, and meantime my very considerable technical, financial and negotiation skills are available for deployment elsewhere.
In conclusion I had perhaps better note that should any ISD decide to shed their paddle costs burden by placing it in my capable hands I shall definitely not be purchasing from the company featured in American Way’s link. Their target market is not the educational one. Few if any schools will have a requirement for paddles crafted in Bacote, Cocobolo or Leopardwood, with holes, and with black sheepskin on one side. </div>
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Another_Lurker
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Jul 15, 2016#88
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
<div style=”width:100%;background-image:url(“/realm/A_L_123/A_L_trg.gif”);”>Hello KK,
Definitely not my paddle shop. I was merely commenting on the link provided on July 12 2016, 3:50 AM in the thread above by American Way.
As regards how many paddles a large High School might require, I would have thought not very many at all. The situation in Elementary schools may possibly be different, but it appears unusual now for public schools in the US to allow individual teachers to paddle students in Middle schools or High Schools. Instead corporal punishment is dispensed centrally, with students being sent to ‘the office’ for this to be dealt with.
Two or three authorised paddlers should suffice for even a large High school. Generally, though not exclusively, these seem to be Principals or Assistant Principals or other senior personnel from the administrative side of the school staff. While the sex of the student might determine which authorised paddler they are directed to I doubt that distinction is necessary, or indeed made, between either age or sex of students as regard the paddle used. One size probably fits all. Spares shouldn’t be required as in the event of theft, loss or breakage an authorised paddler could simply borrow from another authorised paddler until a replacement could be obtained. The holding of excessive stocks is a major contributor to business failure, and these days schools are businesses.
So hopefully no large requirement for paddles, even in a large ISD with more than one High School. However if there are any ISDs which do find themselves with a vast budgetary provision for paddles which they wish to reduce I am happy to offer my services as provisioning agent. It is clear now that despite my efforts in this Forum to promote and advance her political career I am not going to get a phone call with a tempting offer of a plumb cabinet post from our new Prime Minister. Such is politics at the top level. But no matter, there’s always another day, and meantime my very considerable technical, financial and negotiation skills are available for deployment elsewhere.
In conclusion I had perhaps better note that should any ISD decide to shed their paddle costs burden by placing it in my capable hands I shall definitely not be purchasing from the company featured in American Way’s link. Their target market is not the educational one. Few if any schools will have a requirement for paddles crafted in Bacote, Cocobolo or Leopardwood, with holes, and with black sheepskin on one side. </div>
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2015holyfamilypenguin
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Apr 23, 2017#89
I have cited this patent previously in The earliest mention of the school paddle in the USA thread. (Oct 20, 2010). I also cited a contemporary newspaper report of the invention in the same thread (Oct 13, 2012). The item probably belongs better to this science thread.
There are three requirements that must be met before a patent can be granted novelty, utility and not obvious to a skilled practitioner.
A paddle designed to break would seem to be both novel and not obvious. Most practitioners, skilled or not, have been focused on non-breakable paddles, the merits of oak versus pine, Lexan polycarbonate, etc.
However, the patent is weak, if you would excuse the expression and accept the opinion of a patented inventor but not legal expert, in its lack of proof of utility / practicality of the design. No experimental data is presented. There is no actual proof it works or is useful.
For a paddle to be effective it must have a certain minimum weight and to be travelling at a certain minimum speed at time of impact. These minimums have yet to be established. After impact, the paddler has little effect on the consequences notwithstanding the supposed benefits of carry-through. The paddle slows quickly and there is no time, or distance, for the paddler to add further kinetic energy after the impact. Carry-through – aiming for a point beyond the target – ensures acceleration is maintained right up to impact, but increases the risk of breakage.
For a paddle to be safe it needs to be smooth, with no sharp edges, sufficiently broad so that the edges do not make forceful contact, not too heavy and travelling not too fast.
The only way a breakable handle can moderate the energy of the strokes, and the risk of injury, is if it limits the speed by limiting the acceleration, that is, by limiting the force applied during the main part of the swing.
The merits of the patented paddle, as designed, are twofold. Firstly, it will break if applied too hard, and so terminate the paddling or suspend it while the paddle is reassembled, perhaps allowing tempers to cool and the need for further paddling to pass. Secondly, it will curb the enthusiasm of the paddler. Acceleration must be reduced, even if the length of the swing is increased, and all attempts at carry-through must be abandoned. That is, the paddler must stop acceleration some time before impact and allow the paddle to coast.
I would suggest that if a paddle is to be used at all in schools, it needs to be effective. It must cause more than transient mild discomfort except, perhaps, for the very young first-timers where symbolism alone may suffice.
In my opinion, the best way to make a paddle safe is to limit its weight at the time of application. Weight is more important than the thickness of the blade although the two are obviously directly related; depending upon the material the paddle is made of.
Secondly, for a paddle to be safe it needs to flex to at least partially match the curvature of the target, so spreading its energy and not crushing deep tissues against bone. However, the paddle should not be too flexible to avoid any risk of the end making forceful contact, especially with the hip. (“Wrap-around” is a hazard with straps.)
But enough theory! Experiments are required.
Click to expand…
My apologies KK if you already posted this. Pine vs Oak.
Los Angeles Herald 6/16/16
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KKxyz
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Apr 25, 2017#90
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Reported by American Way:
Los Angeles Herald 16 June 1916
Spanking Probe as Teachers Use Paddles of Oak
By International News Service WASHINGTON, Pa., June 16. – Because the teachers in the local schools have been using paddles hewed from oak instead of pine and have been going outside the restricted area on pupils anatomy when using the chastisers, the board of education has called in all the spanking paddles for expert inspection.
At the time the pine paddle was adopted the board passed a rule forbidding teachers to strike about the shoulders or on the lower portion of the legs.
______________________________________________
“Pine” = Eastern White Pine (Pinus strobus).
This is an early mention of a school paddle in a northern state.
I was unaware of Washinton county and town in the state of Pennysvania.
It is the weight of paddles rather than the type of wood that determines their severity. Pine is less dense and less strong than oak. A pine paddle will be less severe than and oak paddle of the same size and thickness. However, a pine paddle would need to be thicker to be a strong as an oak one.
“have been going outside the restricted area. ” What does this mean? Surely teachers were expected to paddle other than on the restricted areas. I wonder which parts were being struck?
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2015holyfamilypenguin
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May 05, 2017#91
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Paddle Size? It takes week to decide!
Democrat and Chronicle Rochester NY December 3, 1959
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Barely readable. Nunda New York December 17, 1959.
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December 13, 1959 The Montana Standard from Butte, Montana
For the record Kermit is a psychologists in real life and not a Muppet.
This is a message American will greet with hearty applause. Applied Psychology The Stamford (Conn.) Board of Education has decided that ill-behaved students may be paddled. But then the agreement ends. In fact, then comes almost complete disagreement. The board can’t decide exactly how the misbehaving pupils may be paddled or with what or where. Moreover, after reaching this momentous decision, it was discovered that such authority already existed in Stamford schools. It came to light with the discovery of a paddle in the office of school psychologist Kermit Shulman. The paddle is nailed to the door in his office like a mounted mackerel. It is a quarter inch thick, three to f o u r inches wide and about 12 inches long. It bears this legend: “For Applied Psychology.” But the school psychologist explained that it was only a joke. And t h a t is likely what the decision of the school board will turn out to be.
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Guest
May 05, 2017#92
As I’ve mentioned before, I’m not an expert in human physiology. Probably someone from a university sports science department would be able to give a much more detailed explanation of the physiological processes involved during corporal punishment. But I am a mathematician, and I know something about the mechanics of moving bodies, so I’ll describe what happens with a very simple model: a rigid object (the paddle) impacting upon an elastic body (the bottom) supported by another rigid object (the pelvic bone). I won’t consider shape, like the curvature of the bottom, at all; the elastic body will simply behave like a compression spring. I am very happy to be corrected if I have made any unwarranted assumptions.
It’s important to remember that the paddle has a direct effect on the bottom <em>only</em> through its speed, both at the moment of impact, and subsequently. The weight of the paddle has only an indirect effect, because a heavier paddle has more kinetic energy and doesn’t slow down as fast when it encounters the resistance of the bottom.
It’s also important to remember that kinetic energy isn’t the only thing keeping the paddle moving; there’s also the force from the arm.
Click to expand…
Could anyone please answer this question , once a paddling has been administered does the temperature of the punished area on the bottom actually increase meaning if you took a thermometer and placed it on the bare skin on the infected area would it show a bigger difference in heat compared to the none punished areas has anyone ever tried this experiment and what were the results
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KKxyz
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Aug 12, 2018#93
Video frame captures allow impacts to be studied. The impact of a soccer ball on a fleshy part of the anatomy is shown at 30 frames per second:
The impact causes major distortion of the left cheek and some discomfort.
Soccer balls have a circumference of about 70 cm (radius about 11 cm, probably rather less than the target cheek in the horizontal plane) and weigh between 440 and 450 gram corresponding to 3.8 g/cm^2 of surface area.
The approaching ball moves roughly one diameter per frame interval, or 7 metres per second, or roughly 25 km/hr which seems very slow. It appears to have been only little slowed by the impact suggesting it will have retained much of its momentum and kinetic energy.
The soccer ball is slower, heavier and markedly curved compared to a school paddle and requires greater skill to use.
SoccerImpactAnimat2.gif (934.28KiB)
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hcj44
228
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Aug 12, 2018#94
Wonchop asked a question over a year ago: “Could anyone please answer this question , once a paddling has been administered does the temperature of the punished area on the bottom actually increase meaning if you took a thermometer and placed it on the bare skin on the infected area would it show a bigger difference in heat compared to the none punished areas has anyone ever tried this experiment and what were the results?”
I think I was away at the time and didn’t see the question, but yes I have an answer – better late than never?
A group of Korean friends did exactly as Wonchop suggested and measured the skin temperature before and after a fairly light ten stroke paddling, using a large bamboo rice scoop. The experiment was done twice with different “victims”. In one case the temperature increased by 1 degree Celsius and the other by 1.1 degrees. This is probably because of increased blood flow to the area rather than any other cause. No Koreans were harmed in the experiment, which probably deserves an “Ig-Nobel Prize” ! ????.
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2015holyfamilypenguin
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Aug 13, 2018#95
I’m Paula Flowe challenged TWP to find one colleges that teaches how to safely administer corporal punishment. In Enterprise, Alabama paddling is not a pleasant option judging from tweets and arguably given the other options shouldn’t.The was a female administrator, mentioned by a recently deceased poster here, that supposedly showed a video.
I noticed that in some schools the teachers have all graduated from nearby colleges. Schools are so expensive and teachers are not justly compensated so state subsidize schools are the only choice. You can’t come out with a big debt and a poor
High school valedictorians and salutatorians (yours truly) have scholarship packages to prestigious colleges or the flagship state college often located in the Capitol. These brighter or better performing students choose more lucrative careers away from their roots. Can you imagine (some do go to Harvard, Yale or Princeton) fresh out of Enterprise talking about their marks and not meaning their grades?
Hofbrauhaus is not a good summer job for a college student preparing to give five swats without alcohol even to the football center.
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Sep 16, 2018#96
With so many instruments of correction why has the paddle been chosen with uniformity and continuity through decades? This may shed some light on that question.
Katie, a good friend who was a teacher and was raised by a teacher tells me she suspects the paddle was so popular in school for several reasons, it’s effective over clothing, where a handspanking, belt or most other implements lose their effectiveness over clothing, it get results quickly, 5 licks is enough for the most recalcitrant student and makes quite an impression, it doesn’t do the physical damage some implements can cause, maybe some bruising but that’s about it, and it’s consistent, the same person can give the same paddling over and over and the results are roughly the same each time.
https://www.wellredweekly.com/index.php … =2&com=172
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KKxyz
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Sep 16, 2018#97
It is commonly asserted without evidence or explanation that:
the paddle does not do the physical damage that some implements cause, and
it is effective (= sufficiently painful).
I and others have suggested in various threads that the paddle is not a benign as many seem to believe. Heavy rigid paddles are inherently dangerous because of the risk of inconspicuous internal crush injuries, especially when multiple swats are applied essentially all on the same spot.
(Ischial tuberosity = pelvis sit bone).
Anvil.gif (44.48KiB)
is-the-paddle-suitable-for-school-cp-t3404.html
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Sep 16, 2018#98
Pose2-compx.gif (113.22KiB)
The paddle may mark the skin little while crushing muscle against angular bone. If sore afterwards injury has occurred even if the skin shows little sign.
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dane
405
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Sep 16, 2018#99
i’m opposed to all scp, but the paddle always seemed like a particularly bad idea, if one very strong blow to the head could easily kill someone and a blow to the torso could easily rupture organs its probably not the ideal implement for hitting anyone anywhere you don’t intend to cause injury… if i had to make the best of a series of bad options, the strap or the martinet are probably the safest.
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jhineugene
1
Sep 17, 2018#100
When I was working on my book “The Compleat Spanker” (now “Spanking for Lovers”), I asked a friend to run a Medline search on spanking injuries. He found two – both of which took place pursuant to fraternity hazings, in which the victim was bent sharply over and the spanking was administered with a large wooden paddle, leading to significant damage of the sciatic nerve. My general rule is that the heavier the implement, the less bent-over the recipient should be – standing upright or lying prone thickens the muscles that protect the underlying nerves and thus provides more protection.
Since then, I’ve learned about more types of spanking injuries, but most have been self-healing (e.g. blisters, welts, “weak spots” caused by repeated impact over damaged skin, etc.). Sciatic nerve damage is a significant and potentially lifelong injury, not to be trifled with.
Another potential type of injury that I know about, er, firsthand, is trochanteric bursitis caused by repeated heavy impact to the bursa – if you look at where the tip of a stiff instrument lands, it is very close to that area. I’d love to see more study of this possibility, but perhaps the chances of getting a research grant are suboptimal.
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KKxyz
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Sep 18, 2018#101
Thanks jhineugene.
PubMed is a free search engine for accessing the very large US government-funded MEDLINE database of references and abstracts on life sciences and biomedical topics. The database covers every conceivable subject and a great many others. It is easy to search if you can identify suitable search terms. However, the hits may be very difficult to understand because of the medical jargon.
Although there is little in the database on wounds inflicted by paddles there is a lot more on those caused by falls, kicks, contact sports, riot-control weapons and the like, i.e. blunt force trauma. Sitting down hard is analogous to being hit by a very large paddle, namely planet Earth. Currently, there is a lot of interest in protective clothing and body armour. Unfortunately, some of those involved in the research are totally ignorant of Newton’s laws of motion and basic mechanics and they are publishing rubbish.
There are many reports on injuries inflicted in various ways written by medics involved in the treatment of injuries.
Ethical considerations prevent proper controlled experiments on human subjects. Some work has been done on cadavers, anesthetized pigs, ballistic gelatine and other surrogates.
https://www.ncbi.nlm.nih.gov/pubmed/
