Delburt Phend

30 minutes?

Well let's keep it real simple. What happens when angular Momentum is NOT conserved in the lab? Well: The earth is suppose to move it's SHOULDER around so as to accelerate or decelerated the mass that is unwinding or wrapping up around an IMMOVABLE post. The pin is in Kansas not at the North Pole. I just think the Earth absorbing or giving motion therory is silly on the surface of it. You certainly have no experimenal proof: and you never will have. The world of science presents the theory because it protects their main theory of energy conservation. Real Angular momentum requires a MASSIVE increase and decrease in linear speed that is provided by gravity. If the satellite did not have an extreme change in speed: Angular momentum conservation would not work. Anything on an air table or in the lab does not have any such change in speed caused by gravity. So forget Angular momentum. Further: does Newton's Three Law of Motion have an r in F = ma? Atwood's are not thought experiments: they are very common and very real. MIT has a very good one with 1110 g accelerated by 10 g. This Atwood's is on YouTube and the losses are less than 3%. And the 'cylinder and spheres' produced 1,000 % and more. Yes: I have proved that energy is NOT a conserved quantity. 'Cylinder and spheres' are on YouTube under Delburt Phend yo-yo despin. There are several. All the 'cylinder and spheres' has to do is restore the original motion. Because Newtonian Momentum Conservation and collision experiments PROVE that only linear Newtonian Momentum is a conserved quantity.

Lets eliminated two false concepts first. No the earth can not wobbly under a stationary pin to make a mass that is unwinding from, or wrapping around the pin to make it go faster or slower. The Newtonian linear momentum of the mass remains the same. No there is not a huge amount of friction when a wrapping mass winds up or unwraps from the pin. An Atwood's or modified Atwood's makes far more momentum than the same distance of free fall for the extra mass. You can place that extra (all that) momentum into the same extra mass and it will rise 10, 20, 40 times higher than the distance it was dropped. The height increase depends upon the mass ratios used. The momentum of the Atwood's can be placed into the small extra mass by the 'cylinder and spheres'; which can be found on YouTube.