The problem with a lot of these water bottle rocket projects is that they leak where the bottle meets the launcher. In most cases this is a good thing as it’s almost impossible to build up ...

This water rocket launcher lets you do just ... got a compressor and some empty 2-liter bottles you might also pick up some extra PVC to make this pressurized water cannon.

Make a launchpad that holds the bottle with the neck downwards, lets you attach the pump and stand behind the bottle. One good method is to plant a spade or garden fork in the ground at a low angle ...

build, and launch water bottle rockets, learning about propulsion and altitude calculation in the process. “Hopefully they're having a fun day, kind of learning about rocket launches and what ...

Make a hole through the length of the cork ... Oh, and an apple may have fallen on his head. The water bottle rocket demonstrates two of his laws. Every action has an equal and opposite reaction.