Crushing a 55-gallon steel drum using air pressure

(CBS) - Let's have a little fun and see what this group of young students can do with a 55-gallon steel drum using a little - wait for it - science! The payoff after a long build-up kicks in at about 2:23 into the clip. 

The video was posted by YouTube user thechemman who writes:

Crushing a 55 gallon steel drum using air pressure. Its been done before but its always fun to watch. Enjoy!

Well, it seems physics is mightier than the sword (or a 55 gallon steel drum, if you will)! Kudos on showing science is fun with this video, thechemman!