Title

Perpetual motion machine

Caption

Perpetual motion machine described in about 1664 by Ulrich von Cranach of Hamburg. Iron balls drive the water wheel that operates the Archimedean screw that raises the balls up again. Cranach claimed it would operate pumps for mines, and insisted that it stood in water. This would have increased energy losses, but was probably necessary to hide a secret driving mechanism. Engraving from "The Gentleman's Magazine" (London, 1747). Science. Physics.

Info+

Photos12.com - Ann Ronan Picture Library

Credit line

Photo12/Ann Ronan Picture Library

Reference

ARP07113_010330P

License type

Rights managed

Available size

22,7Mb (1,3Mb) / 11,8in x 7,5in / 3543 x 2241 (300dpi)