but not in the sense of believing that any merely mechanical contrivance can produce perpetual motion. That there are forces in nature which can and do produce it, is a matter of daily ...
Leonardo da Vinci, back in 1494, said: Oh ye seekers after perpetual motion, how many vain chimeras have you pursued? Go and take your place with the alchemists. There was a rumor in the 8th ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results