UN IMPARCIAL VISTA DE PERPETUAL MARBLE MACHINE KINETIC

A perpetual motion machine of the first kind produces work without the input of energy. It thus violates the first law of thermodynamics: the law of conservation of energy.Don’t see this option? The seller might still be able to personalize your item. Try contacting them via Messages to find pasado!The "Overbalanced Wheel", annotated with distanc