Look out, fidget-spinner-crazed people of the world. The spinners with built-in speakers, LED lights, and Bluetooth capabilities may be dangerous. Let this serve as a warning: the seemingly harmless ...
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Can a fidget spinner spin forever without air drag?
In this video I test whether a fidget spinner will spin longer in a vacuum chamber than in the air. Once you get them them spinning, fidget spinners spin for a long time. and have very little internal ...
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