Actually that was the old standard - a reference weight.
The new standard is based on a specific constant number of atoms.
From that standard they made a crystalline hyper accurate ball for practical purposes and measurements I guess, but the ball is no longer the standard itself.
[–] 7e62ce85 0 points 5 points 5 points (+5|-0) ago
Actually that was the old standard - a reference weight.
The new standard is based on a specific constant number of atoms.
From that standard they made a crystalline hyper accurate ball for practical purposes and measurements I guess, but the ball is no longer the standard itself.