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Brian Cox: Life Of A Universe

Like, if the universehad a beginning, then what happenedbefore the beginning?

Like, if the universe
had a beginning, then what happened
before the beginning?

Full Transcript

00:00:01.000 --> 00:00:03.044
Like, if the universe had a beginning,
00:00:03.044 --> 00:00:05.028
then what happened before the beginning?
Duration
5 seconds
Views
51
Timestamp in Movie
00:10:37
Uploaded
Jul 09, 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 If time emerged at the big bang, then was there a time before time? - Brian Cox: Life Of A Universe 00:06
If time emerged at the big bang, then was there a time befor...
S01 • E02 How can the universe appear spontaneously out of nothing at all? - Brian Cox: Life Of A Universe 00:06
How can the universe appear spontaneously out of nothing at ...
S01 • E02 Well, that is a philosophical question, - Brian Cox: Life Of A Universe 00:09
Well, that is a philosophical question,
S01 • E02 The clues which point the way to a theory - Brian Cox: Life Of A Universe 00:10
The clues which point the way to a theory
S01 • E02 There are two problems with the standard big bang model. - Brian Cox: Life Of A Universe 00:05
There are two problems with the standard big bang model.
S01 • E02 They're called the horizon problem and the flatness problem. - Brian Cox: Life Of A Universe 00:04
They're called the horizon problem and the flatness pro...
S01 • E02 You can picture the horizon problem as follows. - Brian Cox: Life Of A Universe 00:06
You can picture the horizon problem as follows.
S01 • E02 If you look at the universe as far as the eye can see in that direction, - Brian Cox: Life Of A Universe 00:22
If you look at the universe as far as the eye can see in tha...
S01 • E02 But those two points on the sky are separated today - Brian Cox: Life Of A Universe 00:09
But those two points on the sky are separated today
S01 • E02 That means if you've got a universe that's been expanding sedately - Brian Cox: Life Of A Universe 00:12
That means if you've got a universe that's been ex...
S01 • E02 Which means there's no explanation - Brian Cox: Life Of A Universe 00:07
Which means there's no explanation
S01 • E02 When you look at our universe, it appears to be completely flat. - Brian Cox: Life Of A Universe 00:06
When you look at our universe, it appears to be completely f...
S01 • E02 Which seems very strange, - Brian Cox: Life Of A Universe 00:10
Which seems very strange,
S01 • E02 A solution can be found in a theory known as inflation, - Brian Cox: Life Of A Universe 00:17
A solution can be found in a theory known as inflation,
S01 • E02 By "fast", I mean that it was doubling in size - Brian Cox: Life Of A Universe 00:08
By "fast", I mean that it was doubling in size
S01 • E02 That's one ten-million-million- million-million-million-millionths - Brian Cox: Life Of A Universe 00:07
That's one ten-million-million- million-million-million...
S01 • E02 Why does that solve the horizon and flatness problems? - Brian Cox: Life Of A Universe 00:05
Why does that solve the horizon and flatness problems?
S01 • E02 Well, first of all, it suggests the universe has to be extremely big - - Brian Cox: Life Of A Universe 00:10
Well, first of all, it suggests the universe has to be extre...
S01 • E02 This little piece of the Earth here looks flat, - Brian Cox: Life Of A Universe 00:07
This little piece of the Earth here looks flat,
S01 • E02 Why? Because it's very small compared to the size of the Earth. - Brian Cox: Life Of A Universe 00:06
Why? Because it's very small compared to the size of th...