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 ...

Marble machines are the coloring books of the ... and loosens a single screw that affects the speed of a particular ramp. Takes a firm hand to tame those marbles.

YouTuber gzumwalt posted a video of what looks like a marble moving in a perpetual loop. But there’s more than meets the eye and the creator is clear that it only looks like a perpetual motion ...

Marble machines are the coloring books of the ... and loosens a single screw that affects the speed of a particular ramp. Takes a firm hand to tame those marbles. Source: Denha via Digg.