Power of the Screw....

[Lance C]

All,

Sorry for the mis-titling of the message, however when watching the video portion on levers, I thought about other "mechanical advantage" devices other than simple levers that could be used. One that came to mind is the "screw" "helical plane lever?"

As one goes into a rotating twist stance, the legs shorten and your mass drops. Something like getting leverage from a worm gear?

In the method of execution of whipping where there is a relationship of mass vs speed is this a form of lever too? ie similar to collapsing orbit? (curiosity wonders about the term "small circle ju-jitsu" coming from a spiral or colapsing orbit) Are all of these interelated and how much are they just analogeous to how the human bodies actually work?

I read somewhere that Grand Master Parker studied concepts and principles of stage magic (which I also studied after hearing this) to see what could be added into the art. ie Misdirection, Feigning etc.. Such things as using a large movement to conceal a small movement are within the art. They are also ways of generating great sudden velocity, ie the hand is quicker than the eye. Just letting my mind wander a bit...

-Lance

[administrator]

Whenit comes to other studies of the Physics of the Martial Arts, our Physics Notes downloads will continue the process. A topic of radial acceleration, including the helical motin you descrive, is slated to publish this summer.

When it comes to the whipping action that you mentioned, remember the portion of the video that we illustrated a whipping strike was concerning the effect of the strike, and not the delivery. One of the main purposes of this study is to allow the student to more fully understand the effects, and how to maximixe their efforts. This is taking a 3rd person point of biew that so many kenpoists neglect. After the beginning student fully understands the delivery methods of a strike, he should begin the study that we have presented.

As for misdirection, and becoming a magician of motion, you have begun a lifelong journey of rewarding mysteries ...

Kevin Lamkin
Site Administrator

[Lance C]

Mr. Lamkin,

The topic of bringing in some equipment to the club for "Athlete" Benchmarking was brought up. We had mostly positive results, with a few negative ones. Most viewed the equipment as a positive, work ethic inducing, quality improving and fun move towards progress. The few who did not have a good response were "test anxiety" people who do not want to be scored and compared. I suspect one individual who spends more time trying to verbally convince everyone of his prowess does not want to be benchmarked, it would waste all the work he went to telling everyone how good he was. ;)

The program we are going to discuss this weekend is to add in to class the use of some of the equipment and procedures (with considerations to people's privacy) in the use of such things.

Thanks for posting the additional information for download. There are some questions I have concerning the other things not mentioned about scientific theory. Such as: Did you come across anything that could potentially mess up the "peer review factor" or repeatability of the tests. and the "X-Files" question, did you find anything anomolous that would make a tabloid heading?

Thanks again for passing some physics down to us, I took college level physics as is required for passing electronics type programs, however it was just realized the difference in physics in yours and mine due to the differences in education. Hense the urban legending of information many of us have about the subject.

-Lance

[administrator]

: Did you come across anything that could potentially mess up the "peer review factor" or repeatability of the tests. and the "X-Files" question, did you find anything anomolous that would make a tabloid heading?
All of the test are repeatable. In general, I do not use statistical information until there are over 100 repeatable results. The more the better. The main thing to remember as a martial artists, while testing power, speed, reaction time, etc., is honesty. It's better to be honest in training and keep a humble attitude, rather than brag and cheat in the dojo and get humbled in the street.

I am not sure what you refer to mentioning the X-Files. That's not a term that I use. However, if it is referring to Chi-Projection, then you should start with this page.
http://www.elite-fighters.com/home/new/challenge.htm

Kevin Lamkin
Sire Administrator

[Lance C]

All of the test are repeatable. In general, I do not use statistical information until there are over 100 repeatable results. The more the better. The main thing to remember as a martial artists, while testing power, speed, reaction time, etc., is honesty. It's better to be honest in training and keep a humble attitude, rather than brag and cheat in the dojo and get humbled in the street.

I am not sure what you refer to mentioning the X-Files. That's not a term that I use. However, if it is referring to Chi-Projection, then you should start with this page.
http://www.elite-fighters.com/home/new/challenge.htm

Kevin Lamkin
Sire Administrator


Perhaps what I meant by X-Files could be explained by an anecdote:

My neighbour gave me some golf clubs. Knowing little about golf, I decided to try it out on my own. The largest club was the most attractive one and upon hitting a few balls in a local park my results were about 50-75 meter hits with a #1 wood (I believe) A couple of days later a ball was hit well and square, it flew straight and went out of the park, across a river and well into a farm field. I knew the river to be 200 meters away, and probably the ball landed 300 meters out. However I continued to hit the shorter distances, however improvement was made, however slow.

<<Apologies for a Golf Anecdote>>

The x-files reference was to an explainable, yet probability minimal result (ie The character Agent Scully tried to explain things with the voice of science and reason) but the event was exciting and easily believed to be the paranormal. Didn't mean to imply that using Herman would get you abducted by aliens (even the show wouldn't go that far...)

The other thing is that <How Stable is the Equipment?> Does hitmaster debounce automatically or can you "mallet bounce" on impact? and is the accelerometer in Herman subject to false readings due to heat, vibration (ie loud music) or random interference that would cause an exciting event until it couldn't be repeated would it be blamed on a false reading?

To put it into terms is that have you had participants in the testing, get abnormal results (for them) due to the fact the technique was executed (thinking of a japanese term called kime) with all elements coming together for an excellent performance, which appeared to happen with rarity. (explainable, however improbable without more practice and training?)


Training honestly is a discipline in itself. I found myself leaning forward on the speed test practice when my arm was tiring. Another reason you should never train alone, no one with another perspective to let you know you are leaning.
(Even honest folks need a spotter)

-Lance

[administrator]

The equipment that demonstrated with is very stable. There have been no unusual readings with the device. In fact, you can achieve the results on several target, including practice mits, air shields, etc., and still get comparable results. The device measures the change in momentum of the target. Therefore, a very soft padded target may absorb some momentum before the energy is transmitted throughout the target. Most commercially, available training equipment will work fine.

As a training tool, I show the students an overall trend of how their strikes are developing.

Kevin Lamkin
Site Administrator