Eric,
You wrote:
>There can be a change in R, and moment, without a change in position. I
>have always liked the nutcracker analogy. Place a nut so that it touches
>one arm of a nutcracker. Now slowly move the other arm so that it also
>touches the nut. (This is analogous to the maximally pronated
>position.) Now squeeze harder. The position of the nut has not changed
>relative to the arms of the nutcracker. The force, and stress, on the nut
>has changed.
Thanks for explaining this to me. But I am now further confused. My limited
knowledge on the subject is RXF.
Radius times Force. Since we are not changing Radius, we must be changing
Force, which is what I seem to understand from your analogy. Since force is
a function of body weight, and body weight has not changed (unless too many
nuts have been eaten), where exactly does this increase in force come from.
I will stop eating nuts until this is explained to me.
Sincerely,
Stanley
>Good eating,
>
>Eric Fuller
>
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