2 ms·
> The big issue is that the standard reference kilogram (the block of metal) is losing mass. As per the article, there's several of them. Some are losing mass
by pdpi 9y ago
> The big issue is that the standard reference kilogram (the block of metal) is losing mass.
As per the article, there's several of them. Some are losing mass, others are gaining.
- danbruc 9y agoBut only one of them, Big K, defines the kilogram. So the ones losing mass might just gain mass more slowly than Big K. Or they might even all be losing mass but some more slowly than Big K making them apparently gain mass. I don't know if we know how the masses actually changed.
- falcolas 9y agoWe don't. And that's the problem. If it was a consistent loss, it would be much easier to work around.