Nano coin marking the Queen's Diamond Jubilee
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Diamond Jubilee: Diamond nano coin marks Jubilee

Scientists at Glasgow University have come up with a unique way of the marking the Queen's Diamond Jubilee.

They have put the Queen's head on the world's smallest commemorative coin.

Appropriately enough it is made from a sliver of diamond which is 200 times thinner than a human hair.

BBC Scotland's science correspondent Kenneth Macdonald went looking for that very small coin.

  • 01 Jun 2012