THRUST 6-C-1 #4 "wherever the straight Left Arm contacts the left side. And. The picture with caption "#4 Edged Arrow.
Preface; I have been thinking about shoulder turn and the above has always been problematic to me.
The general thought seems to be the left arm is "moved" by the contact point with the chest. My belief is the left arm (#4 accumulator when not in line with the shoulders) is accelerated axially by a pure pull and radially by change in angular velocity of the turning shoulders. The 6-c-1 presentation is not helpful to my construction. Any contact between the arm and chest is purely incidental and not necessary for proper actuation of #4 accumulator.
Other thoughts??
HB
Last edited by HungryBear : 06-14-2012 at 01:50 PM.
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