i have made a crude potato launcher using pvc pipe, screws, 2-core speaker cable and a car battery. i have screwed two machine screws into the pipe so that the ends are very close (but not touching) and have the cable wrapped around the screws and hooked up to the battery at the other end. The idea being that i fill the pvc pipe with aerosol, turn on the battery, electrical charge travels up the cable, to the screws and jumps from one to the other, igniting the gas and launching my potato. my problem is im not getting a spark, what am i doing wrong? (the cable is touching both the pvc and the screws, would this create a problem)
2007-08-19
05:08:28
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3 answers
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asked by
Anonymous
in
Physics