To this day, crazy inventors and adventurers have been trying to build a perpetual motion machine. Some even manage to sell their inventions to those who are eager to pay for a device, that can not exist, according to science. There are thousands of projects and models of such a machine. We picked 7 of our favourites.
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Watch video SEVEN PERPETUAL MOTION MACHINES online without registration, duration hours minute second in high quality. This video was added by user SciOne 05 November 2015, don't forget to share it with your friends and acquaintances, it has been viewed on our site 5,634,418 once and liked it 101 thousand people.