Liquid Nitrogen + 1,500 Ping Pong Balls = Awesomeness (VIDEO)

If you paid at least a little attention in science class, then you'll know that some elements (like nitrogen) can exist in several phases, like liquid and gas. When its phase changes from one to the other, you don't always have to expect an explosion of sorts. But with nitrogen, that's kind of what you'll get.

That's exactly what Roy Lowry, who's this super cool professor from Plymouth University, showed his students. Which makes me wonder, how come I never got to see something like this when I was in school? I'm sure it would've kept a lot more people awake versus the usual, boring lecture that most of us got.

Check out the clip above to see just how explosive nitrogen is. Explosive!