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 ...

At the turn of the 20th century, the quest for a perpetual motion machine took hold of public imagination. A number of Hoosiers were among those captivated by the idea of creating a perpetual motion ...

Why AI is taking on impossible challenges. How a perpetual motion machine can power an AI. Why we have to put an explicit explanation about an April 1st article so that the search engines don’t ding ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

While this is authentic footage of a genuine product, the "perpetual" marble machine does not operate infinitely without an additional energy source. Rather, it uses batteries and a magnet to create ...

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 ...