Posted by: JJA () on Sun May 9 22:31:39 2004

>>> My wrist elongation explanation was an attempt to explain something that everyone could understand, but without being overly rigorous. The attempt was to point out that Jack's experiments certainly don't PROVE his contention that torque is being applied to the bat. Hopefully he has additional data, experiments, or analysis that cast further light on his hypothesis.<<<
>
> Hi JJA
>
> Are saying, that in the test I described, torque was not responsible for accelerating the bat head. If you are, please define the force applied at the handle that did generate the angular displacement.
>
> JJA, we can discuss the mechanics of a full swing later. Right now, please address only the test.
>
> Jack Mankin
>

Jack,

As I have said in three previous posts, I wholeheartedly agree that your experiments showed that torque applied at the handle can produce significant bat speed.

Unfortunately, this does not prove that torque is applied at the handle during a real swing. It shows that it MAY be factor, but it certainly doesn't rule out other possibilities. It does not even remotely prove that applying torque to the handle is the ONLY possible way of generating bat speed.

Jack, I'm just making a very narrow judgement here. The experiments you performed do not prove that torques are applied to the bat during the swing. From your previous posts, it sounds as if you have additional data, analysis or experiments which support your hypothesis. I would welcome the opportunity to see this supporting material. This material may very well convince me of the validity of your position. Unfortunately, based solely on the descriptions of your experiments in this thread, I do not believe you have scientifically proven your hypothesis.

-JJA