Perpetual Motion: The History of an Obsession |
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Page 85
... Magnets sliding in holes in a wooden wheel rotating between two magnets of opposite polarity were proposed by an inventor called Stephan in 1799. Soft iron cores sliding on wheel spokes to respond to the attraction of fixed magnets , so ...
... Magnets sliding in holes in a wooden wheel rotating between two magnets of opposite polarity were proposed by an inventor called Stephan in 1799. Soft iron cores sliding on wheel spokes to respond to the attraction of fixed magnets , so ...
Page 88
... magnets , gravity interrupters or suchlike . The attention of the sophisticated perpetual motionist now centred on the electro - magnet . One proposition was for a wheel driven by a crank which was connected to the moving contact of an ...
... magnets , gravity interrupters or suchlike . The attention of the sophisticated perpetual motionist now centred on the electro - magnet . One proposition was for a wheel driven by a crank which was connected to the moving contact of an ...
Page 92
... magnets face one way . Two permanent magnets g are mounted on arms h on the shaft , their similar poles facing towards the magnets a . The action of the mag- nets a causes the magnets g to rotate as shown in the end view ( Fig . 51 ) ...
... magnets face one way . Two permanent magnets g are mounted on arms h on the shaft , their similar poles facing towards the magnets a . The action of the mag- nets a causes the magnets g to rotate as shown in the end view ( Fig . 51 ) ...
Contents
Introduction | 15 |
What is Perpetual Motion? | 19 |
Elementary Physics and Perpetual Motion | 27 |
Copyright | |
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ammonia appeared Archimedean screw atoms Bishop Wilkins Böckler boiler bottom buckets centre century chain claims clock clockwork Coleman Sellers conservation of energy continue Cox's crank demonstrated descending described device discovered discovery discs driving dry pile electricity engine exhibition experiment flywheel force Franklin Institute friction fuel Garabed Giragossian glass gravity heat hollow impossible inclined plane invention inventor Keely's lamp Law of thermodynamics levers liquid lodestone magnets means mechanism mercury move Museum natural once operation Orffyreus Patent Office pendulum perpetual motion machine perpetual motion seekers perpetual motionists Perpetuum Mobile petual motion Philadelphia philosopher physicist piece possible pressure principle probably produced Professor published pulley pump radium reactor Redheffer Rolling Ball Clock rotation scheme Second Law self-moving wheel shaft side steam Stevinus strange temperature thing thought tion tube turn uranium 235 uranium 238 valve waterwheel weights winding Zimara