what kind of sorcery lets people swim in this sand filled hot tub? /

Published at 2017-11-29 15:05:00

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You can try as hard as you want,but you’ll never be as frosty an uncle as ex-NASA JPL engineer Mark Rober. Using elaborate experiments, he makes learning approximately science even more entertaining than Bill Nye did, or his latest invention is a sand-filled hot tub that somehow still behaves like water you can swim in.
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Source: gizmodo.com

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