captjack on Nostr: It’s the end of an era. After 130 years of faithful service, the so-called ...

It’s the end of an era. After 130 years of faithful service, the so-called “prototype kilogram” upon which nations base their weight measurements was just replaced by a new standard based on fundamental laws of physics. The new definition of the kilogram, which was adopted at an international conference held last November in Versailles, France, went into effect in 2019. Instead of being based upon a shiny hunk of metal stored in a vault in Sevres, France, on the outskirts of Paris, the kilogram is now based on the "Planck constant", a tiny, unvarying number that plays a key role in quantum physics.
Kg has changed too. but to more accuracy LoL