I'm using my answer again.
If you want to get idea of what does it mean, there you go.
So the value of PI is the length from certain point on circle meet the ground to when a certain point on circle meet the ground again. Simply it's one length of a rolling.
Hope it helped!
By the way, heureka
How do you know if he is german or not?
He wouldn't understand.
The probability that he will be german is
World population = 7125000000
German population = 80620000
$$\frac{80620000}{7125000000}*100=1.13% (2 d.p.)$$
The percentage that him being German is 1.13%.
You should have linked video in english.
Using your logic, he should have linked the video in Chinese.
Vielleicht ist die Scheiße Kopf sollte Deutsch lernen.
Nauseated, What you are saying is right.
But I didn't mean to offence anyone and I wrote it with purpose of joking.
I don't know what you are saying in German, but I hope it's not offending me.
Sorry if you are offended.