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Using electrical currents
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Secrets of Size: Atoms to Supergalaxies

Using electrical currents, they slowly dissolved awaythe tip of the spike so that just a...

Using electrical currents, they slowly dissolved away
the tip of the spike so that just a very thin needle
of metal remained

Full Transcript

00:00:01.000 --> 00:00:02.599
Using electrical currents,
00:00:02.006 --> 00:00:06.079
they slowly dissolved away the tip of the spike
00:00:06.008 --> 00:00:09.519
so that just a very thin needle of metal remained.
Duration
10 seconds
Views
22
Timestamp in Movie
00:24:35
Uploaded
May 06, 2025
Season
1
Episode
1
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 • E02 It's the force of gravity which creates all this structure. - Secrets of Size: Atoms to Supergalaxies 00:05
It's the force of gravity which creates all this struct...
S01 • E01 Its tip was just a few atoms in diameter. - Secrets of Size: Atoms to Supergalaxies 00:05
Its tip was just a few atoms in diameter.
S01 • E01 But how could this needle see? - Secrets of Size: Atoms to Supergalaxies 00:04
But how could this needle see?
S01 • E02 Gravity also draws in hot, young, massive stars - Secrets of Size: Atoms to Supergalaxies 00:08
Gravity also draws in hot, young, massive stars
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 • 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 • E02 These are stellar nurseries, - Secrets of Size: Atoms to Supergalaxies 00:11
These are stellar nurseries,
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.