Over at Popsci, the physics of tossing a ping-pong ball into a beer cup, with videos of, well, tossing a ping-pong ball into a beer cup, under various conditions you’d find in a dorm (starting with the unlikely presence of beer cups).

These guys are pretty amazing. And the nonchalance with which they accomplish each trick shot adds a certain understated humor to this entertaining video. But though the guys seem to be developing a seemingly useless (if highly impressive) skill in their spare time, there’s quite a bit of complex science at play.

I think being able to edit out the misses tempers that amazing/impressive just a little. Mostly it reminds me of how much free time I had in college, even though it didn’t seem that way at the time.