I described what it did but had no idea why someone would buy one ;- ," Doherty told Live Science in an email. For Doherty, the spinners are interesting for another reason: "To me, these show the coolness of ball bearings that reduce friction and allow things to rotate freely for a long time. Here's a look at what's happening when your child, or you, balance a fidget spinner on your finger and give it a whirl. Ball bearings are key to this spinning toy. To understand why, try this: Slide a block of wood or other material across the floor. Then do the same with a marble. That's because friction associated with rolling motion is typically less than so-called sliding friction. This same principle can be applied to the spinners. At the center, and on each of the three "wings" of the spinner, is a bearing race, which is a circular channel around which tiny balls roll with low friction, Doherty said.
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Keep your logo on a swivel. Find this Pin and more on fidgetspinner by Brittanie Weaver. Fidget Toys.