Request]For how long would this setup spin the spinner(with only the magnets)? : r/theydidthemath
Axle" Fidget Spinner | eBay
How Fidget Spinners Seem To Spin Forever | Mach | NBC News - YouTube
Amazon.com: ForeverSpin Titanium Spinning Top - World Famous Spinning Tops : Toys & Games
Amazon.com: ATESSON Fidget Spinner Toy, 4 to 10 min Spins, Ultra Durable Stainless Steel, Bearing High Speed Precision Metal Material Hand Spinner : Toys & Games
These two charts show the meteoric rise—and fall—of fidget spinners
CD & Marble Forever Spinning Top
Metallic Spinner Toy - Only $1.36 at Carnival Source
Fidget Spinning Explained, Defended, and Celebrated - Foundation for Economic Education