[The Q] is one such experimenter, who built a dual-thrust water rocket that even has a parachute for landing! The testing took place in an area strangely reminiscent of a certain operating system.

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.

On Wednesday, 15th June the National Physical Laboratory (NPL), the UKs National Measurement Institute, successfully launched the world’s largest water rocket. Water rockets are created from ...