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BRIAN GREENE: If you have an energy
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Brian Cox: Life Of A Universe

If you have an energy that is uniformly spread outthrough a region of space, it can yield...

BRIAN GREENE: If you have an energy that is uniformly spread out
through a region of space, it can yield a new kind of gravity -
repulsive gravity

Full Transcript

00:00:01.000 --> 00:00:03.008
BRIAN GREENE: If you have an energy
00:00:03.008 --> 00:00:06.036
that is uniformly spread out through a region of space,
00:00:06.036 --> 00:00:10.012
it can yield a new kind of gravity - repulsive gravity.
Duration
10 seconds
Views
37
Timestamp in Movie
00:18:32
Uploaded
Jul 12, 2025
Season
1
Episode
2
Genres
documentary

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Movie Summary

Professor Brian Cox on tour in Australia talks about the life of our universe to scientists and to space-loving audiences.
S01 • E02 Gravity that doesn't pull things together but pushes things apart. - Brian Cox: Life Of A Universe 00:04
Gravity that doesn't pull things together but pushes th...
S01 • E02 So, they presuppose that this kind of...fuel, if you would, - Brian Cox: Life Of A Universe 00:14
So, they presuppose that this kind of...fuel, if you would,
S01 • E02 The idea that inflation is driven by the inflaton field - Brian Cox: Life Of A Universe 00:13
The idea that inflation is driven by the inflaton field
S01 • E02 Now, you can think of the inflaton field - Brian Cox: Life Of A Universe 00:15
Now, you can think of the inflaton field
S01 • E02 They mean that the inflaton field - Brian Cox: Life Of A Universe 00:07
They mean that the inflaton field
S01 • E02 So that means that at the end of inflation - Brian Cox: Life Of A Universe 00:14
So that means that at the end of inflation
S01 • E02 So, at the big bang, you get a very natural prediction - Brian Cox: Life Of A Universe 00:11
So, at the big bang, you get a very natural prediction
S01 • E02 Now, imagine what happens as this universe expands and cools. - Brian Cox: Life Of A Universe 00:04
Now, imagine what happens as this universe expands and cools...
S01 • E02 Those denser regions get denser, - Brian Cox: Life Of A Universe 00:09
Those denser regions get denser,
S01 • E02 The fluctuations in the early universe - Brian Cox: Life Of A Universe 00:07
The fluctuations in the early universe
S01 • E02 Without those seeds, without that structure, we wouldn't exist. - Brian Cox: Life Of A Universe 00:05
Without those seeds, without that structure, we wouldn'...
S01 • E02 Although inflationary cosmology does have its critics, - Brian Cox: Life Of A Universe 00:14
Although inflationary cosmology does have its critics,
S01 • E02 But a more speculative addition to the theory exists, - Brian Cox: Life Of A Universe 00:13
But a more speculative addition to the theory exists,
S01 • E02 If the theory of inflation is correct, - Brian Cox: Life Of A Universe 00:10
If the theory of inflation is correct,
S01 • E02 We have a minimum time, which is quite short, actually - - Brian Cox: Life Of A Universe 00:10
We have a minimum time, which is quite short, actually -
S01 • E02 And so you ask the question, - Brian Cox: Life Of A Universe 00:06
And so you ask the question,
S01 • E02 Could you push the origin of the universe - Brian Cox: Life Of A Universe 00:09
Could you push the origin of the universe
S01 • E02 The answer is we don't know. There's theoretical speculation either way. - Brian Cox: Life Of A Universe 00:06
The answer is we don't know. There's theoretical s...
S01 • E02 But imagine if the universe IS in fact eternal. - Brian Cox: Life Of A Universe 00:06
But imagine if the universe IS in fact eternal.
S01 • E02 So, this picture of inflation, - Brian Cox: Life Of A Universe 00:06
So, this picture of inflation,