Perpetual motion devices are either a gag, a scam, or as in the case of this particular toy that [Big Clive] bought on AliExpress, a rather fascinating demonstration of a contact-free inductive sensor ...

Perpetual motion and notions of ‘free energy’ devices are some of those pseudo-science topics that seem to perpetually hang around, no matter how many times it is explained how this would literally ...

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 ...

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 ...

This experiment puts a supposed perpetual motion device to the test. We break down how it works, what physics says should happen, and whether the motion can actually last without an external energy ...