Former NASA Engineer Turns Sand Into Liquid

Former NASA engineer Mark Robert found a way to make science as interesting and exciting as Bill Nye did. Robert managed to turn sand into "liquid." In addition, he not only documented the whole process, but also filled himself a hot bath to have fun and explain everything in an accessible and humorous manner.

In his entertaining video, Mark explores what is known as “fluidized beds,” a physical phenomenon that occurs when a mass of solid particles is placed in suitable conditions to make a solid or fluid mixture behave like a liquid. To ripple along the sand, and bubbles appear on the surface, Robert used air. By blowing it to the bottom of the sand container, it increased the space between individual sand particles, reducing internal friction and allowing particles to move more freely, as if they were a liquid.

“I wanted to do this for a long time,” Mark says. “But it’s impossible to find any information on the net about how to do this.” As a result of many trial and error, the ex-NASA employee nevertheless revealed the secret of this amazing sight.