1) Although seeming very simple (four simple components only) our zigzag conception must be evaluated ONLY by highly qualified experts in theortetical and applied mechanics who are familiar with the three Newton's laws and with basic mechanical terms like force, mass, linear and angular acceleration, inertia, torque, linear and angular momentum, kinetic and potential energy, power, friction, etc. (Exchemist, for example do you make difference between mechanical energy and mechanical power? Or in what units angular velocity is measured? I doubt that you are able to answer these (and similar) questions.)
2) Any other opinions different from the exchemist's one?