23. Perpetual Motion
Magnetism
and gravity
B, a strong
magnet set in the open slot between the sides of the wheel A, as shown
in the section. C, an iron ball. The magnet is supposed to draw the
ball to one side of the center, and gravity gives the ball the force to
turn the wheel. Patented in 1823. Section shows the ball and slot.
(Subsection 921-922, from
p.368)
