00:01
And this question, we're looking at mewan's, right? mewan has a rest of life, sorry, rest half life.
00:07
That's t, well, i'm not going to use t.
00:11
Okay, t half, the rest half life is 1 .5 mule second, right? that means it has a decay time, which is tau, given by 1 over log 2 times t, and of course, this lifetime, when it's moving, so the lifetime of the muirum, this is a rest lifetime, right? rest left time, no, not rest level, yeah, rest left time is right.
00:45
The rest level time.
00:47
But when the muons moving, it's lifetime according to an observer that's not moving, that's fixed.
00:53
It's given by top plan that's given by tau divided by one minus v squared, a ferec squared.
01:00
This is known as timidulation.
01:02
In fact, right? now, according to observer on the earth, the mureans, the atomophobic millions, let's see they all come down to the earth, for example, at the height, suppose.
01:23
Some millions come, created some height from here...