NASA engineers demonstrate the effect of turning sand into water

An engineer who worked for NASA applied the fluidized effect to create a sand bath in the video that caused a social network fever.

Mark Rober, a former NASA engineer, demonstrates the fluidized effect of air pressure on the sand in the video that attracts more than 5.7 million views on YouTube, according to the International Business Times.

Rober took 25 attempts to make the sand flow like liquid.

"I was sitting in the hot tub so the sand was so full that my mouth was full. This is one of the most interesting things. If you use this sand bath and add the air properly, it will become a soup. liquid, " the inventor in California shared while sitting in a homemade bath.

Rober explained that the fluidised bed effect is used in many industrial applications such as electrostatic painting or in granular silos to ensure the particles flow smoothly."With the air above, the surface is not friction-like like a hockey table. Then, when you draw air, everything feels as if it's frozen in place , " Rober said.

Rober took 25 attempts to make the sand flow like liquid. He and his friends made a bath that could pump air instead of water. The effect was very attractive when the sand moving around Rober and the plastic duck made ripples.