Accurately testing exact hardness of a material, in depth

[unable to retrieve full-text content]Scientists have now built a machine that sets a new standard of accuracy for testing a material's hardness, which is a measure of its resistance to bumps and scratches.

Source: http://feeds.sciencedaily.com/~r/sciencedaily/~3/klgU3ZUEDaw/130730123419.htm

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