Perhaps the most persistent nonsense in physics: the perpetual motion machine. Bad ideas come and go in physics. But there’s one bit of nonsense that is perhaps more persistent than all others: the ...
On Sept. 20, 1913, rumors were running rampant around North Dakota that J. W. Kennedy, of Mandan, North Dakota, had invented just such a machine. A news clipping about J.W. Kennedy and his perpetual ...
It sounds like the theoretical impossibility of perpetual motion, but engineers at the University of Michigan have created a pacemaker that is powered by the beating of your heart -- no batteries ...
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