Extensor action

[Jeff]

I am presently working my way through some of Yoda's old posts.

He stated-: "Per6-B-1-D, Extensor Action is always a below-plane Pull. This Pull straightens ideally, the entire Primary Lever Assembly (both the Left Arm and Clubshaft / 6-A-2) through Pressure Point #3. However, with the less skillful player, this #3 Pressure Point Pull may induce Clubhead Throwaway. In which case, the Extensor Action should be limited to astraightening of the Left Arm only (by Pulling on the Left Thumb through Pressure Point #1). In either event, the Extensor Action is always a Pulling Action, never a Pushing Action.

You can't Push a piece of string into a straight line."

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I cannot understand this position. It is my understanding that the right hand is pushing on the left thumb (PP#1 point) in such a direction (directionally along the longitudinal axis of the left arm) so that it extends the left arm. The left arm is pulled straight, but it pulled straight by a
push-action exerted by the right arm/hand unit.

I also think that it is possible to push a string (which is lying on a tabletop) into a straight line - by using the tip of a finger to push against one end of the string (in a straight line direction towards a distant target point). This explanation is identical to the idea of a horse pushing against a harness in order to pull a cart in a straight line direction.

Jeff.

[Yoda]

I cannot understand this position. It is my understanding that the right hand is pushing on the left thumb (PP#1 point) in such a direction (directionally along the longitudinal axis of the left arm) so that it extends the left arm. The left arm is pulled straight, but it pulled straight by a
push-action exerted by the right arm/hand unit.

I also think that it is possible to push a string (which is lying on a tabletop) into a straight line - by using the tip of a finger to push against one end of the string (in a straight line direction towards a distant target point). This explanation is identical to the idea of a horse pushing against a harness in order to pull a cart in a straight line direction.

We're saying the same thing, Jeff: You stretch (pull) the left arm into a straight line by a right triceps push against the left hand thumb (just as if the left arm was merely a piece of string).

Regarding pushing a string into a straight line . . .

I'll pay to see that!

[Jeff]

Yoda

Regarding the problem- issue of "pushing a string into a straight line" consider the following thought-experiment.

Imagine a piece of string lying on a tabletop. Then imagine putting a pin into one end of the string to keep its position static. One can then straighten that string by pulling on the other end until the string is straight. Alternatively, one can place one's fingernail a few miilimetres from the other end of the string and push the string straight by pushing that string end against the tabletop in a straight line direction away from the pin.

Jeff.

[Yoda]

Yoda

Regarding the problem- issue of "pushing a string into a straight line" consider the following thought-experiment.

Imagine a piece of string lying on a tabletop. Then imagine putting a pin into one end of the string to keep its position static. One can then straighten that string by pulling on the other end until the string is straight. Alternatively, one can place one's fingernail a few miilimetres from the other end of the string and push the string straight by pushing that string end against the tabletop in a straight line direction away from the pin.

C'mon, Jeff,

Both motions in your examples are called pulling the string!

Pull Definition:

To exert force or influence on so as to cause to move toward or after the source of the force; drag, tug, draw, attract, etc.

[Jeff]

Yoda - now I can understand why you describe the right arm's pushing action at PP#1 as a pulling action.

I have always understood pull and push differently. I think of a horse pushing against his harness so that the cart can be pulled by the horse (via the harness). However, I can understand how somebody else can combine these two factual phenomena into a single phenomenon and simply state that the horse is pulling the cart.

Jeff.

[pistol]

C'mon, Jeff,

Both motions in your examples are called pulling the string!

Pull Definition:

To exert force or influence on so as to cause to move toward or after the source of the force; drag, tug, draw, attract, etc.

An all time classic from Dr Jeff. Been laughing for 10 mins . Keep em coming

[Jeff]

Pistol - typical post! Typically devoid of intellectual/intelligent content, and typically reflective of your personal animus.

What more can one expect of you?

Jeff.