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Half as Hot (mander.xyz)
submitted 2 years ago by to c/science_memes@mander.xyz
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[–] 5 points 2 years ago (1 child)

It's a room made from platinum-iridium, and kept in a triple-locked vault at the International Bureau of Weights and Measures in France.

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  • [–] 3 points 2 years ago

    unfortunately, opening the door changes the temperature, so in practice instruments are calibrated from copies of the room built at other metrology institutions around the world.

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