The ballplosion is created by filling a 2 liter bottle with super cold liquid nitrogen and allowing the expanding gas to rupture the bottle. The force of the explosion launches the balls 20 feet or more into the air!
Hi! I'm Carl Nelson and this is my collection of science activities, videos, photos and other stuff I find interesting. After completing my masters degree in Physics I fell into the world of informal education. I've worked in science centers for the past 16 years and am currently the Chief Scientist and Exhibits Director at Imagination Station, a science center, in Toledo Ohio.