It’s a great way to send a water rocket ever higher, but [The Q] didn’t stop there. The build was also fitted with a wind-up module from a little walking toy, colloquially referred to as a ...

This water rocket launcher lets you do just that. Built using the frame from an old grill, a soda bottle takes its place on the upturned PVC pipe. There’s a connection for your garden hose ...

Eighth and ninth grade students worked in teams to design, build, and launch water bottle rockets, learning about propulsion and altitude calculation in the process. “Hopefully they're having a ...