Remember the year someone fired a pumpkin through the scoreboard with a cannon?
It was awesome.
A Cal State Fullerton biology student built the air pressure cannon, dubbed the Pumpkin Lobber, in his garage for the annual pumpkin launch. During the test fire on the field, a pumpkin and medicine ball were blown out of it and through the Titan Stadium scoreboard. Metal panels flew off the back, we were still finding chunks of pumpkin out in the parking lot.
Anyway, the Pumpkin Launch, which usually happens on Halloween (or close to it), is hosted by the Discovery Science Center. It's just a fun, quirky event that gets kids interested in physics.
I'm not sure what the parameters are to compete, but it's usually high school and college students. Aside from constructing cannons, competitors can build trebuchets, catapults, sling shots, and other sorts of gourd-hurling implements.
It's a local, smaller scale version of "Punkin Chunkin," which airs on the Science Channel each year with the Mythbusters covering it.
Someone shot video from the field here: http://youtu.be/_l2PrLHymDk?t=3m28s
The Pumpkin Launch at CSUF is free to attend, but they seem to be requiring pre-registering for tickets these days instead of just showing up and grabbing a seat in the bleachers. read more