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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1. The human beauty we’re talking about here is beauty of a particular type; it might be called kinetic beauty. Its power and appeal are universal. It has nothing to do with sex or cultural norms. What it seems to have to do with, really, is human beings’ reconciliation with the fact of having a body.