“Perpetual Motion Machines” is a documentary film about the great David Jones, creator the Daedalus column that for decades made the readers of New Scientist, Nature, and The Guardian laugh, then think. David took part in the 2001 Ig Nobel Prize ceremony, to the great delight of many.
Donald E. Simanek‘s “Perpetual Futility—A short history of the search for perpetual motion” is an introduction to the perhaps perpetual search for perpetual motion. It begins: Popular histories too often present perpetual motion machines as “freaks and curiosities” of engineering without telling us just how they were understood at the time. They also fail to inform […]
Perpetual motion machines are difficult to build, to put it mildly. This attempt uses a dog as the main mechanism: (Thanks to investigator Kermit Chessman for bringing this to our attention.)