Re:Mass and angular momentum, left ambiguous by Einstein, ge...
by lucideer on Friday July 15, 2022 @09:11PM
(#32114424)
> how is that applied when the force is gravity, applied to every point of the object at every time?
It's about the point of suspension resisting gravity. The axis is "held" at a point, applying an "upward" force (resisting gravity). With gravity as you say evenly acting, the point opposite that through the centre of gravity will have a downward vector. The natural result of these opposing vectors might be rotation through the centre of gravity, but when those rotational forces are applied to moving targets you get suspension from the product.
I don’t recall any “magic thinking” in the explanation of precession in my introductory undergraduate physics text. Just Newton’s laws and vector cross-products.
“you are applying the lateral force to a different spot on the object at each time interval” : how is that applied when the force is gravity, applied to every point of the object at every time?