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Gravity also draws in hot, young, massive stars
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Secrets of Size: Atoms to Supergalaxies

Gravity also draws inhot, young, massive stars to create the bright central bulge

Gravity also draws in
hot, young, massive stars to create the bright central bulge

Full Transcript

00:00:01.000 --> 00:00:04.679
Gravity also draws in hot, young, massive stars
00:00:04.068 --> 00:00:07.068
to create the bright central bulge.
Duration
8 seconds
Views
24
Timestamp in Movie
00:24:49
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 One idea was to harness an unusual force of nature. - Secrets of Size: Atoms to Supergalaxies 00:05
One idea was to harness an unusual force of nature.
S01 • E02 In some regions of our galaxy, - Secrets of Size: Atoms to Supergalaxies 00:14
In some regions of our galaxy,
S01 • E01 Its feet stick to the glass using a tiny attractive force - Secrets of Size: Atoms to Supergalaxies 00:07
Its feet stick to the glass using a tiny attractive force
S01 • E01 Van der Waals forces exist because of a rather quirky aspect - Secrets of Size: Atoms to Supergalaxies 00:08
Van der Waals forces exist because of a rather quirky aspect
S01 • E01 Think of an atom as a tiny positively charged nucleus - Secrets of Size: Atoms to Supergalaxies 00:09
Think of an atom as a tiny positively charged nucleus
S01 • E02 These are stellar nurseries, - Secrets of Size: Atoms to Supergalaxies 00:11
These are stellar nurseries,
S01 • E01 But, crucially, these electron clouds aren't static, - Secrets of Size: Atoms to Supergalaxies 00:09
But, crucially, these electron clouds aren't static,
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,