Sujet

Perpetual motion machine

Légende

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

Crédit

Photo12/Ann Ronan Picture Library

Notre référence

ARP07113_010330P

Licence

Droits gérés

Format disponible

22,7Mo (1,3Mo) / 30,0cm x 19,0cm / 3543 x 2241 (300dpi)