Sunday, February 17, 2013

kilogram more precise

"This new kind of clock might make an expected, more precise definition of the kilogram easier to use. The scientific standard for mass is currently defined by a lump of metal, but its mass is drifting so the plan is to replace this with a definition based on fundamental constants." http://www.newscientist.com/article/mg21729004.700-most-fundamental-clock-ever-could-redefine-kilogram.html

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