LA úLTIMA GUíA A 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."So cute! I love this as my new fidget toy" Kinetic sculpture Wooden sailboat nautical art automaton sculpture desk art gift for bossCampeón usual I probably forgot a file or tw