2015年3月23日 星期一

A New Kilogram Standard Made of Silicon?

For years, scientists around the globe pondered how a new definition for the kilogram could look like a definition less prone to aging and impermanence than the current standard kilogram, a small cylinder made of an alloy of platinum and iridium. The German institute for metrology PTB now claims to have the recipe.



from EETimes: http://ift.tt/1G8MjEz

via Yuichun

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