When a plane crashes sometimes they say on the news that the remain have to be identified by dental records. This is something that has suddenly interested me, not that my name has been removed from the no fly list yet, but if they don’t know who the hell you are, how do they know your dentist?

Inspired by a recent letter in the New Scientist…

Obviously you are all aware of Schrodinger’s cat, but have you ever heard of Schrodinger’s socks. It goes like this.

Socks start off as pairs, but which is the left and which is the right. In fact they are both and neither at the same time. And the really interesting thing is that the instant you put one sock on your left foot, the other sock becomes a right sock.
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