A Former NASA Engineer Turns Sand Into Liquid And He's Telling How • MetDaan

A Former NASA Engineer Turns Sand Into Liquid And He’s Telling How

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The 37-year-old Mark Rober is an engineer and inventor. Born on 11th March 1980 in Orange County, California, he became popular for YouTube DIY videos on popular science with interesting and creative ideas. It started with one video on Rober’s iPad Halloween costume which turned into a variety of videos that attracted the public’s attention as well as the media’s. His Facebook page @MarkRoberYouTube is getting more and more popular with over 66.392 likes to date.
He was working at NASA, too, for nine years, seven of which he was working on the Curiosity rover at Jet Propulsion Laboratory in NASA, where he joined in 2004.
Mark’s latest video that went viral was inspired by a scientific concept called the fluidized air bed. The video has attracted over 5.971.990 views to date. The popular invention is a sand-filled hot tub that incredibly still behaves like water.

The ex-NASA engineer turns science into entertainment and creates a hot tub that is filled with liquid sand and incredibly still behaves like water you can swim in. He wanted to experience for himself the sensation of floating in liquid sand.

How extraordinary and cool is this?

He elaborates the concept known as fluidized beds, “a physical phenomenon occurring when a quantity of a solid particulate substance is placed under appropriate conditions to cause a solid/fluid mixture to behave as a fluid.”

In order to make the sand ripple and bubble like it is liquid, he uses air. In that way he increases the space between individual sand particles, allowing the particles to move around more freely, the way they would in a liquid.
“I’ve wanted to build one for a long time,” Mark explains in his video. “But you can find literally NO information on line on how to make one like that. So I started combing through a bunch of patent drawings for massive industrial-sized fluid beds, and I noticed that instead of one big inlet, they all had a bunch of small holes to deliver air.”

This is the popular invention, a sand-filled hot tub that incredibly still behaves like water.

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This is by far one of the coolest things ever. You don’t encounter a man bathing in a hot bath filled with liquid sand every day, do you?

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So he started combing through a bunch of patent drawings for massive industrial-sized fluid beds

Because of the air pressure, the sand behaves the same way as water.

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If you cut off the air, everything freezes exactly where it is.

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It took him about 25 failed versions before creating a design that will work.

It is really entertaining and satisfying, right? Seeing that sand that seems to float and splash around like they would do so in water.

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Also, in the video Mark hides inside the hot tub and surprises his three nephews when they arrive at his house.

Watch the video below in order to see how he did it and be ready to be amazed.

Source: Boredpanda

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