Does it qualify as a perpetual motion machine? Why not? Is gravity being “used”?
Oh, and where can I buy it?
ETA: This thingie has nothing to do with the movie plot, so I hope it’s OK that I named the movie in the title.
Purchase yours here.
It’s not perpetual motion. It’s driven by batteries in the base. However, it is an example of how a double pendulum can produce chaotic motion.
[sub]It does not actually violate the laws of physics.[/sub]
That’s the one. If it runs on batteries, I guess that explains it all. It had me puzzled earlier.
But $239. WTF? Why is it so highly priced.
Because that site is selling to people with a lot of money. You can get similar devices in novelty shops for a tenth the price.
The way you put this comment in subscript, for a moment I thought it was your sig line. It would be a good one, IMO—relevant in just about every GQ thread! 