Ex NASA Engineer Makes Everyone Freak Out When He Turns Sand Into ‘Liquid Soup’, And Here’s How He Did It

Former NASA engineer Mark Rober has found a way to make science just as (if not more) entertaining as Bill Nye did – by making sand behave like water. Not only did he document the entire process, he even filled his hot tub to have fun with it, and explained everything in an easily understandable and humorous manner along the way.