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Different countries' approaches can lead to different definitions of the kilogram. But NIST is working with our international partners to see how we can close
Remember the social media controversy over the color of a dress? That’s a lighthearted example of how illumination can affect the things we see, but this is
Four of these men are now known to have continued their careers at NBS, though colleagues at the time didn’t know about their co-workers’ historic past.