Want to Know How Long a Fidget Spinner Spins? Get a Laser and Some Physics

Published: May 10, 2017, 8:12 a.m.

Fidget spinners are the new Rubik\u2019s Cube. Or maybe the new Tamagotchi. Or \u2026 I don\u2019t know. Pick your fad. You see these toys, ostensibly designedto help kids fidgety concentrate, everywhere now. Seriously. Everywhere. Afidget spinner is basically a small bearing mounted in a piece of plastic or other material. You hold it and spin it. I guess it\u2019s sort of amusing.