On Friday, NASA astronaut Randy Bresnik posted a video of himself and some of his astronaut pals taking Newton’s laws of motion for a test ride by messing with a fidget spinner aboard the International Space Station.
In the video’s caption, Bresnik explains why the fidget spinner goes so crazy in space:
Allowing the fidget spinner to float reduces the bearing friction by permitting the rate of the central ring and outer spinner to equalize, and the whole thing spins as a unit.
A fidget spinner in space! How long does it spin? I'm not sure, but it’s a great way to experiment with Newton’s laws of motion! pic.twitter.com/5xIJDs2544
— Randy Bresnik (@AstroKomrade) October 13, 2017