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 ...

A closer look at a device claimed to run indefinitely, exploring the science behind perpetual motion and why such systems are widely considered impossible. Trump’s "executive power" defense fails to ...

Perpetual motion machines. A century and more ago, they were a hot ticket. Ebenezer Punderson Avery, a Connecticut man who lived in Great Barrington in the 1780s before relocating to New York, ...

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 ...

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 ...