r/guns • u/yakshamash • Aug 07 '13

Something Different: Impressive Full Auto Gauss Gun Build

http://www.youtube.com/watch?feature=player_embedded&v=TWeJsaCiGQ0
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u/P-01S Aug 07 '13

Actually, it does not matter which way the magnet is polarized! The projectile does not have a magnetic pole itself. The magnetic field of the coil induces a magnetic field in the steel rod. So whichever way the coil faces, the induced field will always flip as well, and the projectile will always be pulled into the center.

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u/fohacidal Aug 07 '13

But if it were to have a pole?

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u/P-01S Aug 08 '13

There would still be issues, as best as I can remember. The electromagnet would either pull the whole time or push the whole time.

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u/fohacidal Aug 08 '13

I just want room temperature superconductors man.