|MadSci Network: Engineering|
In order to do this you need a DC field. You can make a coil on a toilet paper roll but a smaller tube will work better because the coil will have a lower resitatnce and hence a higher current. Wrap a lot of turns of fairly large like #24 gauge wire on the tube. Put the screw driver in the tube and briefly connect the wires to a D cell battery. If it doesn't work the metal in the screw driver may be too magnetically hard or you don't have enough turns of wire or enough batteries or all three in some combination. There are a lot of other neat magnetic tricks and demonstrations that are much more interesting in the book Mondo Magnets. The tricks in the book are also on a DVD available from Supermagnetman.com
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