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The ingenious method which Alexia used
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Secrets of Size: Atoms to Supergalaxies

The ingenious methodwhich Alexia used involved very distant objectscalled quasars

The ingenious method
which Alexia used involved very distant objects
called quasars

Full Transcript

00:00:01.000 --> 00:00:03.719
The ingenious method which Alexia used
00:00:03.072 --> 00:00:07.839
involved very distant objects called quasars.
Duration
8 seconds
Views
14
Timestamp in Movie
00:54:11
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 But let's zoom in and hopefully see - Secrets of Size: Atoms to Supergalaxies 00:07
But let's zoom in and hopefully see
S01 • E02 These are immensely bright centres of galaxies, - Secrets of Size: Atoms to Supergalaxies 00:10
These are immensely bright centres of galaxies,
S01 • E01 So this is now that same patch, - Secrets of Size: Atoms to Supergalaxies 00:04
So this is now that same patch,
S01 • E01 You might just about start being able to recognise - Secrets of Size: Atoms to Supergalaxies 00:11
You might just about start being able to recognise
S01 • E02 For Alexia, they were extremely useful - Secrets of Size: Atoms to Supergalaxies 00:11
For Alexia, they were extremely useful
S01 • E01 But if you look closely on the original image - Secrets of Size: Atoms to Supergalaxies 00:10
But if you look closely on the original image
S01 • E02 We're going to use these two torches to represent quasars. - Secrets of Size: Atoms to Supergalaxies 00:05
We're going to use these two torches to represent quasa...
S01 • E01 And they are brighter because, those atoms are heavier, - Secrets of Size: Atoms to Supergalaxies 00:06
And they are brighter because, those atoms are heavier,
S01 • E02 Now, you have a simple demo here, this plate of glass. - Secrets of Size: Atoms to Supergalaxies 00:06
Now, you have a simple demo here, this plate of glass.
S01 • E01 But just to demonstrate, I can move that scan box - Secrets of Size: Atoms to Supergalaxies 00:08
But just to demonstrate, I can move that scan box
S01 • E02 These little blobs here - Secrets of Size: Atoms to Supergalaxies 00:07
These little blobs here
S01 • E02 Now, without the quasars, we wouldn't be able to see them. - Secrets of Size: Atoms to Supergalaxies 00:04
Now, without the quasars, we wouldn't be able to see th...
S01 • E01 So that entire bright patch - Secrets of Size: Atoms to Supergalaxies 00:06
So that entire bright patch
S01 • E02 But with the quasars, they essentially act like a torchlight - Secrets of Size: Atoms to Supergalaxies 00:07
But with the quasars, they essentially act like a torchlight
S01 • E01 And yet it's a blob, it's a patch. It's not the picture of an atom - Secrets of Size: Atoms to Supergalaxies 00:11
And yet it's a blob, it's a patch. It's not t...
S01 • E02 As the light passes through a galaxy, - Secrets of Size: Atoms to Supergalaxies 00:06
As the light passes through a galaxy,
S01 • E01 It remains reasonably abstract. What we see is this average structure - Secrets of Size: Atoms to Supergalaxies 00:10
It remains reasonably abstract. What we see is this average ...
S01 • E02 We can see that some of the light was absorbed - Secrets of Size: Atoms to Supergalaxies 00:09
We can see that some of the light was absorbed
S01 • E02 Using this method, Alexia has been able to create a 3D map - Secrets of Size: Atoms to Supergalaxies 00:11
Using this method, Alexia has been able to create a 3D map
S01 • E01 We've magnified this sample that we've taken out - Secrets of Size: Atoms to Supergalaxies 00:11
We've magnified this sample that we've taken out