The World’s Most Perfect Object & The Origin Of The Kilogram (VIDEO)
A kilogram isn’t what it used to be. Literally.
The kilogram is the only base unit still defined by a physical artifact; the international prototype kilogram (IPK).
The problem is, that artifact is always fluctuating its weight.
In the following video, the world’s roundest and most precious object helps solve the longest running problem in measurement: how to define the kilogram.
Inspired by High T3ch
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Tags: exact kilogram, international prototype kilogram, kilogram origin, perfect kilogram, perfect sphere, silicon sphere
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