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01 May 2006 @ 07:08 pm
physics  
i don't suppose anyone would know why a stupid magnet falls down a copper pipe slower than a steel ball, would you?

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manders1703manders1703 on May 2nd, 2006 01:55 am (UTC)
Ya know, I do! The magnet going throuhg the pipe is like a magnet going into tons of little tiny rings which induce a current to resist the change. So, the magnet's weight has to overcome the force created by the ring's induced current (FBI law) so it goes slower than a steel ball which just has weight and induces no current. Help at all? Yes, i am a nerd. Won't deny it