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News and Updates

Displaying 326 - 350 of 689

NIST Neutral as Butter War Spreads

In 1917, NIST physicists Irwin Priest and Chauncey Peters were drawn into the so-called Butter War, an early 20 th century commercial and political spat between

Calculating Color

Harry Keegan of NIST’s Photometry & Colorimetry Division using a mechanical calculator in 1958 to compute color coordinates for standard sources.

Noise, Temperature, and the New SI

NIST has recently made substantial improvements to its Johnson-noise thermometry system, which is playing a vital role in the worldwide effort to determine the
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