The universal kilogram is getting lighter. The 118 year old cylinder kept in a triple locked vault in a chateau in Sévres has lost 50 micrograms; the equivalent weight of a fingerprint.
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The universal kilogram is getting lighter. The 118 year old cylinder kept in a triple locked vault in a chateau in Sévres has lost 50 micrograms; the equivalent weight of a fingerprint.
Related posts:
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