carlie writes: "Ever wonder who's taking care of the 'National Kilogram'? Have a 40 foot structure you need tested to 12 million pounds of pressure? How about a 6 foot aluminum sphere with microwave plasma lamps called the 'Black Ball of Sunlight' to check that new polymer for photodegradation? The online version of the Washington Post has an article about the National Institute of Standards and Technology in Gaithersburg, where all this and more occur daily."
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