back on friday, april 21 as i left school i saw that the 5th and 6th graders were shooting off water rockets, what fun!

it looked like they made them out of empty soda bottles filled them about half way with water. then they mounted it on a little tripod, pumped a bunch of air into them, then released. the water pressure inside shot the water out of the bottle and propelled the bottle pretty far, around a hundred feet or so. cool!

chan's one of the fifth grade teachers, he appeared to be in charge of this operation. he's one of the teachers i have a small english class with every wednesday after school and he speaks english pretty well.

i even managed to get a few videos for your enjoyment (they're compressed with the xvid codec):

jihun-rocket.avi (2.5 Mb)
jihun attached a parachute to his that deployed just before it fell to the ground.

rocket-crash .avi (1.3 Mb)
this one took off at a line drive and crash landed before going too far.

rocket-long.avi (1.8 Mb)
my 3rd grade student hayeon almost disastrously walked right into this one, but after that it ended up going quite far.