Welcome to Time Machines, where we offer up a selection of mechanical oddities, milestone gadgets and unique inventions to test out your tech-history skills. You're perched atop a motorcycle, cruising ...

This commercial failure wasn't a first for forward-thinking Heilig. The obscure invention he patented just before the ill-fated Sensorama looks so eerily familiar, it's hard to believe it was created ...

When we talk about the history of virtual reality, we usually refer to the promise of the eighties: the sci-fi movies and experimental products that first made us believe in a virtual world. From ...