1
00:00:18,952 --> 00:00:19,981
So right here

2
00:00:29,906 --> 00:00:31,714
even though we have these other particles

3
00:00:33,103 --> 00:00:33,589
the question is

4
00:00:33,589 --> 00:00:37,720
where do we put this particle?

5
00:00:40,937 --> 00:00:45,113
We want to look at x squared plus negative x.

6
00:00:50,917 --> 00:00:53,896
so it would put it up here and then

7
00:00:54,972 --> 00:00:59,419
we increase the value of x a little bit

8
00:01:02,540 --> 00:01:03,506
and where will that one go.

9
00:01:04,087 --> 00:01:06,922
a little bit less than 42.

10
00:01:09,184 --> 00:01:10,309
Then do it again

11
00:01:11,575 --> 00:01:13,210
it is still positive but

12
00:01:13,474 --> 00:01:14,581
both of them will decrease

13
00:01:14,815 --> 00:01:17,233
So, it will be less than what it was before.

14
00:01:18,046 --> 00:01:19,391
So it can go down like this

15
00:01:20,309 --> 00:01:21,884
and one question to ask is

16
00:01:22,382 --> 00:01:25,003
is it coming down straight down or

17
00:01:25,378 --> 00:01:31,024
is it coming down like this and you can say well

18
00:01:33,568 --> 00:01:35,502
this one is coming down straight

19
00:01:36,188 --> 00:01:38,606
but this one is coming down a little bit less each time.

20
00:01:40,670 --> 00:01:49,341
So it will be coming down not quite as much as it did before so that is something.

21
00:01:51,104 --> 00:01:54,631
So this is what you get when you look at it microscopically

22
00:01:57,645 --> 00:02:04,259
so you come up and go down here and every time it goes a little bit less.

23
00:02:14,177 --> 00:02:15,533
This is always coming down the same amount,

24
00:02:16,219 --> 00:02:18,798
this is going down a little bit less than the one before.

25
00:02:19,388 --> 00:02:22,959
So the sum is going to be coming down a little bit less than before.