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 ...

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 ...

The idea of a perpetual motion machine is promising, from a distance. Through brilliant engineering maybe we could find a way to create a device so ingenious that it can produce unlimited energy, ...

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 ...