Liquid N2 + ping pong balls + hi-speed cam = SLOMO boomhappy funtime

While it definitely lacks the low-budget charm of this nearly identical classroom presentation, this demonstration of liquid nitrogen's explosive potential does have two major things going for it. One: more ping pong balls. Two: A high-speed camera, for slowmo playback goodness. » 9/13/13 10:14am 9/13/13 10:14am