Guys Fill Swimming Pool With 25 Million Orbeez

Inventor and former Nasa engineer Mark Rober teamed up with Kevin Kohler, aka "The Backyard Scientist," perform a series of cool experiements in a swimming pool filled with 25 million Orbeez (waterballs made from polymers that can absorb large amounts of a liquid).

Mark and Kevin perform eight more Orbeez experiments in the video below: