I have to make a cannon for the science fair but i do not know all the things i need to make it . so please someone answer this question
2007-04-30 09:01:55 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Physics
i agree potato guns will do what you need to do but be care full I think they may be illegal in some states. That's what I was always told. Agua Net hair spry works the best!!! Plus the best ignition switch comes from old grills. Get that little red button that ignites grills and some PVC pipe and your golden!!!
2007-04-30 09:18:07 · answer #1 · answered by Michael B 2 · 0⤊ 0⤋
Go to a carpet store and get a cardboard tube they wrap the carpets in. A tennis ball fits inside a standard diameter just right.
2007-04-30 16:18:49 · answer #2 · answered by Dr. R 7 · 0⤊ 0⤋
Look up "Potato Gun". That will tell you all you need to know.
2007-04-30 09:10:23 · answer #3 · answered by Anonymous · 0⤊ 0⤋