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December 4, 2017 04:56 am PST

Swimming in a liquid sand hot tub

Science YouTuber (and former NASA engineer) Mark Rober explains how when you add air "in the just the right way" to sand, it "basically becomes a liquified soup." It sure does!

Watch and learn.


Original Link: http://feeds.boingboing.net/~r/boingboing/iBag/~3/plqiDklFZKw/swimming-in-a-liquid-sand-hot.html

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