Tuesday, February 17, 2009

Hard is better :D

''Diamond will always be a girl's best friend, but it may soon lose favour with industrial drillers.

The gemstone lost its title of the "world's hardest material" some time ago, to man-made nanomaterials of slightly greater toughness. Now a rare natural substance looks likely to leave them all far behind - at 58% harder than diamond.
'' [source]

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