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Fun with compressed air: Creating a liquid sand hot tub

Dec. 1, 2017

Have you ever tried swimming in sand?

Have you ever tried swimming in sand? All you need is a hot tub, PVC pipe, and an air compressor. If swimming in sand sounds impossible, then you are forgetting the scientific principle of fluidization. Fluidization occurs when the force of the air pushing upward on an object (in this case, a grain of sand) is equal to the downward force of gravity, causing the grains of sand to hover in equilibrium. The result is sand that behaves more like water and must be seen to be believed.

About the Author

Alexis Gajewski | Senior Content Strategist

Alexis Gajewski has over 15 years of experience in the maintenance, reliability, operations, and manufacturing space. She joined Plant Services in 2008 and works to bring readers the news, insight, and information they need to make the right decisions for their plants. Alexis also authors “The Lighter Side of Manufacturing,” a blog that highlights the fun and innovative advances in the industrial sector. 

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