Thursday, July 26. 2007
Magnets and pennies
When I was a kid, we used to use magnets to pick up coins. Of course, this never worked with pennies since they're made of the wrong kind of metal, but you could pick up other coins with a magnet.
Tonight, my son was doing this and we discovered that about a third of the pennies we sampled do get picked up with a magnet. The remaining two thirds don't. We couldn't find any obvious patterns in the coins that can be attracted.
I thought at first that it might be newer coins being attracted and older coins not but we found a mix new and old ones that were attracted and a mix that weren't.
Tonight, my son was doing this and we discovered that about a third of the pennies we sampled do get picked up with a magnet. The remaining two thirds don't. We couldn't find any obvious patterns in the coins that can be attracted.
I thought at first that it might be newer coins being attracted and older coins not but we found a mix new and old ones that were attracted and a mix that weren't.
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Email: mbowler
@GargoyleSoftware.com
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