00:01
Everybody, so what can general conditions were needed for earth for life to eat to rise? so about two -thirds of atoms.
00:11
So we have, on us, we have a lot of hydrogen.
00:14
So for us, we need liquid water.
00:19
Okay? we need oxygen.
00:24
And so about two -thirds of our atoms, atoms in human body.
00:35
I mean, we write that, so it actually looks nice.
00:41
And human body are hydrogen, and we got one, and we have one, and we have one -tenth carbon.
01:10
And we have about a few weeks.
01:17
Hundredths nitrogen, so get some nitrogen in there.
01:20
So this is called, oops, if it, like, actually lets me write nicely, so i apologize.
01:33
So give me a second to get the pen in there.
01:42
This is called c -h -o -n.
02:05
Okay? okay.
02:06
And every living body is composed of the four elements, of these four elements...