00:01
Okay, in our scenario here, a fossilized leaf contains 28 % of its normal amount of carbon 14.
00:07
How old is the fossil? it's in the next year.
00:10
So to help with this, i've created a model based on the scenario.
00:14
We got the amount of the initial amount.
00:16
That stays the same.
00:17
But half -life i'm going to represent as that's my factor, or raise the power of, in this case, time divided by 5 ,600.
00:26
5 ,600 is the half -life number of years.
00:30
So in the scenario, the initial amount doesn't matter because if i divided away, i get the same thing.
00:37
So, or if i divided it away here, that's going to be gone.
00:42
This right here is representing the ratio of the amount divided by the original amount.
00:47
Well, there's 28 % remaining.
00:49
This is going to turn into 0 .28...