Bessler wheel
http://www.keelynet.com/energy/bessler.htm …A native of Zittau, Saxony, Bessler was thirty-two years of age when he exhibited his first “self-moving wheel” at Gera in 1712. It was a wheel about three feet in diameter and four inches thick, capable (according to witnesses) of keeping itself in motion for an indefinite period without visible assistance. Once the wheel…