Today we got back at the projects listed in this awesome book. We made a rocket out of a two liter plastic Coke bottle,bicycle pump, rubber stopper, copper tube, wire coat hanger, a sports needle with a 6 x 6 wooden launch pad- thank you Ace Hardware. The book says you can achieve a launch of 70 ft. Ours went consistently 30 to 40. With some tinkering and modification I think we can get close to 60 or 70.
We've got the material for a serious water balloon launcher.
Next project? Maybe this:
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