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These are stellar nurseries
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Secrets of Size: Atoms to Supergalaxies

These are stellar nurseries, where pressure from the forceof gravity heats up the...

These are stellar nurseries, where pressure from the force
of gravity heats up the hydrogen, making it hot enough
to ignite fusion

Full Transcript

00:00:01.000 --> 00:00:03.399
These are stellar nurseries,
00:00:03.004 --> 00:00:07.439
where pressure from the force of gravity heats up the hydrogen,
00:00:07.044 --> 00:00:10.052
making it hot enough to ignite fusion.
Duration
11 seconds
Views
18
Timestamp in Movie
00:25:26
Uploaded
May 06, 2025
Season
1
Episode
2
Genres
documentary

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Movie Summary

In this mind-bending series, Jim Al-Khalili explores the vast range of size in the universe, from tiny atoms to gigantic, interconnected galaxies.
S01 • E01 So the clouds can become lopsided, - Secrets of Size: Atoms to Supergalaxies 00:06
So the clouds can become lopsided,
S01 • E02 These are the places where new stars are born. - Secrets of Size: Atoms to Supergalaxies 00:05
These are the places where new stars are born.
S01 • E01 Because opposite charges attract, - Secrets of Size: Atoms to Supergalaxies 00:09
Because opposite charges attract,
S01 • E01 The force that an individual atom feels is, of course, minuscule. - Secrets of Size: Atoms to Supergalaxies 00:05
The force that an individual atom feels is, of course, minus...
S01 • E02 But by studying the operation of gravity at a galactic scale, - Secrets of Size: Atoms to Supergalaxies 00:07
But by studying the operation of gravity at a galactic scale...
S01 • E01 But these effects can add up. - Secrets of Size: Atoms to Supergalaxies 00:04
But these effects can add up.
S01 • E01 And this, in turn, means that the molecules on the surface - Secrets of Size: Atoms to Supergalaxies 00:11
And this, in turn, means that the molecules on the surface
S01 • E02 As our galaxy revolves around the centre, - Secrets of Size: Atoms to Supergalaxies 00:14
As our galaxy revolves around the centre,
S01 • E01 And that's what the gecko is taking advantage of. - Secrets of Size: Atoms to Supergalaxies 00:05
And that's what the gecko is taking advantage of.
S01 • E02 During the second half of the 20th century, - Secrets of Size: Atoms to Supergalaxies 00:09
During the second half of the 20th century,
S01 • E01 A gecko's feet are covered with billions of tiny structures - Secrets of Size: Atoms to Supergalaxies 00:08
A gecko's feet are covered with billions of tiny struct...
S01 • E02 She worked with instruments that could measure it - Secrets of Size: Atoms to Supergalaxies 00:06
She worked with instruments that could measure it
S01 • E01 When these press against the glass, - Secrets of Size: Atoms to Supergalaxies 00:07
When these press against the glass,
S01 • E02 As she did the maths, she realised something extraordinary. - Secrets of Size: Atoms to Supergalaxies 00:05
As she did the maths, she realised something extraordinary.
S01 • E02 OK, so we've shrunk the Milky Way - Secrets of Size: Atoms to Supergalaxies 00:09
OK, so we've shrunk the Milky Way
S01 • E01 Billions of atoms are now in contact. - Secrets of Size: Atoms to Supergalaxies 00:04
Billions of atoms are now in contact.
S01 • E02 Now, Vera Rubin was one of the leading figures - Secrets of Size: Atoms to Supergalaxies 00:09
Now, Vera Rubin was one of the leading figures
S01 • E01 Then the tiny van der Waals forces - Secrets of Size: Atoms to Supergalaxies 00:07
Then the tiny van der Waals forces
S01 • E01 And this was one of the forces - Secrets of Size: Atoms to Supergalaxies 00:07
And this was one of the forces
S01 • E02 We've set it up so we've mapped in - Secrets of Size: Atoms to Supergalaxies 00:05
We've set it up so we've mapped in