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SIR WILLIAM HERSCHEL
SIR WILLIAM HERSCHEL
Germany (1738 - 1822)
Sir Frederick William Herschel was a German-born British astronomer and composer who became famous for discovering Uranus. He also discovered infrared radiation and made many other discoveries in astronomy.
 

Enjoy these insightful and educational video clips drawn from over 70 hours of interviews with the world's leading figures in astronomy, shot during the filming of 400 Years of the Telescope.

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Catherine Cesarsky

The ALMA interferometry project
Catherine Cesarsky - International Astronomical Union

ALMA is a giant array of radio telescopes which will be used as an interferometer. It will have at least 66 radio telescopes and hopefully up to 80. By using many of these telescopes separated over the ground, we can attain in the sky extremely high resolutions.

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Catherine Cesarsky

The ALMA site at San Pedro de Atacama
Catherine Cesarsky - International Astronomical Union

We are close to San Pedro de Atacama which is now a very fashionable place to go for vacation because itís a fantastic nature. There it was possible to find this plateau at the height of 5,000 meters.

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Catherine Cesarsky

ALMA'a angular resolution
Catherine Cesarsky - International Astronomical Union

The angular resolution that you will obtain with the area depends on the distance between the various antennas.

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Catherine Cesarsky

The apex: ALMA in the early stages
Catherine Cesarsky - International Astronomical Union

We are in Chajnantor. We are at an altitude of 5,000 meters on a very large plateau, which has been selected for the construction of ALMA.

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Catherine Cesarsky

Einstein: my astronomical hero
Catherine Cesarsky - International Astronomical Union

Einstein alone in his little office, could come up with so many important discoveries.

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Catherine Cesarsky

The birth of ALMA
Catherine Cesarsky - International Astronomical Union

I think astronomers all over the world in the last decade were realizing that the next important project in astronomy was going to be a very large, millimeter, sub-millimeter interferometer.

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Catherine Cesarsky

ALMA and the Copernican revolution
Catherine Cesarsky - International Astronomical Union

The biggest surprises are the ones I cannot guess. Iím sure there will be some of those.

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Catherine Cesarsky

How I became an astronomer
Catherine Cesarsky - International Astronomical Union

I always loved to look at the sky and I was always interested in knowing, but no, I didnít think from early on that I would be an astronomer. It happened.

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Catherine Cesarsky

The aim of interferometry
Catherine Cesarsky - International Astronomical Union

The aim of interferometry is to obtain resolutions on the sky comparable to what you would get with a telescope the size like the separation between your telescopes.

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Catherine Cesarsky

The International Year of Astronomy
Catherine Cesarsky - International Astronomical Union

I think astronomy in general, and the big discoveries we are doing now in particular can do a lot to change the lives of a lot of people because we are studying the universe and itís not just our universe, itís everybodyís universe.

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