Diamond nano-coin for the Queen

http://www.bbc.co.uk/news/uk-scotland-18279430

"Pussycat, Pussycat, where have you been ?
I've been to London to visit the Queen

...and to see her cool nano-coin"

200 times thinner than a human hair !

 

Log in or Sign up to hide this ad.

That's an interesting story.

Sure it's not some sort of tracking device?