When used as a rocket booster, it is filled with 66 Ibs. of water heated electrically to 504° F. The water cannot boil because it is confined, but its pressure rises to 50 atmospheres (735 Ibs ...

Idaho State University's Physics Department students taught the kids a little about physics and showed them how to build ...

SAFETY: This rocket uses air pressure to fling a bottle at high speed 20–50 metres. The bottle must be made entirely of plastic, it must have no sharp points and it must be for a fizzy drink, so ...