I could be wrong but I seem to remember this is one of the reasons why the baskets have a net.
You’re not allowed to do that but if the net wasn’t there then in pre-video games the refs might not be able to spot if the ball went up through the hoop.
Think they were also to stop players reaching up through the hoop to defend as well.
My understanding is that current atomic clocks work on changing the state of whole atoms.
Whereas this new method changes the state of part of the nucleus of an atom.
Basically smaller is more precise. However given that current atomic clocks are one second out over something like a billion years I’ve no idea what benefit this extra preciseness will give us.
We’ll probably start noticing really weird shit when we look at time that precisely. That’s generally what’s happened when we get into the quantum scale of things.