Rocket stoves are an interesting ... they can also be used to provide a large amount of hot water to something like an off-grid home as well. [Little Aussie Rockets] starts off the build by ...

[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.

Practise and challenge your friends! Download the Water bottle Rockets PDF(378 Kb). Adobe Acrobat is required. SAFETY: This rocket uses air pressure to fling a bottle at high speed 20–50 metres.