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When I tested with Algodoo I find an energy that increase more and more with only 2 objects in free rotation. Without friction nothing happen but with friction a torque exist. This torque is applied to object 1 like to object 2 (in other direction). But, with different weights and different inertias, torques don't works the same value. Work from a torque is torque by angle of rotation, angle of rotation is torque*tē/inertia (second law of Newton). Like inertia is not the same even a short time the sum of energy of the system can't be constant. What do you think about that ?
Images:
1/ forces show torque (2 objects)
2/ difference of angular velocity (2 objects)
3/ severals frequencies (complex system with 3 objects)
4/ show frequency don't change the sum of energy at final (complex system with 3 objets)
5/ the basic system composed of 2 objects
6/ the complex system with 3 objects
NB: No external torque, no external gravity, no axis: all the system is free to move in 2D.
Images:
1/ forces show torque (2 objects)
2/ difference of angular velocity (2 objects)
3/ severals frequencies (complex system with 3 objects)
4/ show frequency don't change the sum of energy at final (complex system with 3 objets)
5/ the basic system composed of 2 objects
6/ the complex system with 3 objects
NB: No external torque, no external gravity, no axis: all the system is free to move in 2D.