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And that's exactly what Leavitt noticed
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Secrets of Size: Atoms to Supergalaxies

And that's exactlywhat Leavitt noticed, that the brighter starsflash more slowly and the...

And that's exactly
what Leavitt noticed, that the brighter stars
flash more slowly and the dimmer stars
flash more quickly, and it's really what her main
contribution to astronomy has been

Full Transcript

00:00:01.000 --> 00:00:03.399
And that's exactly what Leavitt noticed,
00:00:03.004 --> 00:00:06.279
that the brighter stars flash more slowly
00:00:06.028 --> 00:00:09.001
and the dimmer stars flash more quickly,
00:00:09.008 --> 00:00:12.999
and it's really what her main contribution to astronomy has been.
Duration
13 seconds
Views
20
Timestamp in Movie
00:20:15
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 And they had unexpected properties, - Secrets of Size: Atoms to Supergalaxies 00:09
And they had unexpected properties,
S01 • E01 This is one of the blackest materials in the world. - Secrets of Size: Atoms to Supergalaxies 00:05
This is one of the blackest materials in the world.
S01 • E02 If we see two Cepheid variable stars - Secrets of Size: Atoms to Supergalaxies 00:12
If we see two Cepheid variable stars
S01 • E01 See, it might look to you like a flat black square - Secrets of Size: Atoms to Supergalaxies 00:10
See, it might look to you like a flat black square
S01 • E02 So, if one seems dimmer to us, - Secrets of Size: Atoms to Supergalaxies 00:07
So, if one seems dimmer to us,
S01 • E01 And yet, looking at it face on, - Secrets of Size: Atoms to Supergalaxies 00:06
And yet, looking at it face on,
S01 • E02 Leavitt had found a way we can measure huge distances in space. - Secrets of Size: Atoms to Supergalaxies 00:06
Leavitt had found a way we can measure huge distances in spa...
S01 • E01 Now, normally when we see objects, - Secrets of Size: Atoms to Supergalaxies 00:13
Now, normally when we see objects,
S01 • E02 In 1923, Edwin Hubble pointed a telescope - Secrets of Size: Atoms to Supergalaxies 00:12
In 1923, Edwin Hubble pointed a telescope
S01 • E01 Light falls on the surface and then just disappears forever. - Secrets of Size: Atoms to Supergalaxies 00:05
Light falls on the surface and then just disappears forever.
S01 • E01 What's perhaps most surprising - Secrets of Size: Atoms to Supergalaxies 00:07
What's perhaps most surprising
S01 • E02 He measured its pulse rate to be very slow - 31 days. - Secrets of Size: Atoms to Supergalaxies 00:05
He measured its pulse rate to be very slow - 31 days.
S01 • E02 So, using Leavitt's discovery, - Secrets of Size: Atoms to Supergalaxies 00:07
So, using Leavitt's discovery,
S01 • E01 The paint, called Vantablack, - Secrets of Size: Atoms to Supergalaxies 00:07
The paint, called Vantablack,
S01 • E02 But because it looked so faint when seen from Earth, - Secrets of Size: Atoms to Supergalaxies 00:07
But because it looked so faint when seen from Earth,
S01 • E02 In fact, the Andromeda Galaxy is two and a half million light years away. - Secrets of Size: Atoms to Supergalaxies 00:07
In fact, the Andromeda Galaxy is two and a half million ligh...
S01 • E01 So it just looks like a black surface here, - Secrets of Size: Atoms to Supergalaxies 00:07
So it just looks like a black surface here,
S01 • E02 So the mystery of these faint, wispy nebulae was solved. - Secrets of Size: Atoms to Supergalaxies 00:06
So the mystery of these faint, wispy nebulae was solved.
S01 • E01 So, if you imagine a forest of trees, - Secrets of Size: Atoms to Supergalaxies 00:09
So, if you imagine a forest of trees,
S01 • E02 As suspected, some of them are indeed collections of gas and dust, - Secrets of Size: Atoms to Supergalaxies 00:08
As suspected, some of them are indeed collections of gas and...