This water rocket launcher lets ... you to inject water into the bottle. From there, a compressor connection pressurizes the bottle in preparation for launch. Watch it happen in the video ...

SAFETY: This rocket uses air pressure to fling a bottle at high speed 20–50 metres ... bits of wood or plant pots will all work as a launch pad Check the cork will be a good tight fit in ...

Last spring [Mike] built a foam rocket launchpad which was a hit with the kids in his neighborhood. But the launch system was merely a couple of buttons so the early enthusiasm quickly wore off.

SAFETY: This rocket uses air pressure to fling a bottle at high speed 20–50 metres ... bits of wood or plant pots will all work as a launch pad Check the cork will be a good tight fit in the bottle.