Perhaps the most persistent nonsense in physics: the perpetual motion machine.

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The latest video supposedly depicting the "perpetual" marble machine, however, was authentic footage and featured a physical product. But a perpetual-motion machine?

Dive into the world of perpetual motion machine attempts from bizarre contraptions to brilliant (yet flawed) engineering, these inventions pushed the limits of physics and human imagination ...

Perpetual motion machines are devices that, once started, could theoretically remain in motion forever without adding any additional energy to them.

Well satisfied fans, the mid-tempo Big Easy horn howler "Perpetual Motion Machine" takes Brock and Co. into a pretty different direction. As far as context, the eight-song No One's First And You ...

“It’s like a perpetual motion machine — you create the fear of fraud out of vapors and then cut down on people’s votes because of the fog you’ve created,” said Michael Waldman, the ...

Inventors have been coming up with designs for perpetual motion machines for centuries even though they're completely impossible.

One North Dakota inventor's quest for a 'perpetual motion machine' On Sept. 20, 1913, rumors were running rampant around North Dakota that J. W. Kennedy, of Mandan, North Dakota, had invented just ...

But he argues that students should nevertheless examine the history of perpetual-motion machines because it offers a lesson in how the minutiae of physics must be incorporated into theory and ...

A perpetual motion machine has mass and moves and would therefore perform work. The insurmountable problem, of course, is "perpetual." Energy has to come from someplace, and nothing is forever.