40 results found for astronomy

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00:21:00

The Square Kilometre Array

by Rosie Bolton
The Square Kilometre Array
for 14-19 and upwards,
Lectures | 14-19 and upwards | 8 years ago | 4723 views
Rating:

Rosie Bolton describes the importance of this huge project and some of the interesting problems which needed to be solved in its planning and implementation.

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00:17:00

Gravitational waves and the early universe

by Mark Hindmarsh
Gravitational waves and the early universe
for 14-19 and upwards,
Discussions | 14-19 and upwards | 8 years ago | 1585 views
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Mark Hindmarch talks about our understanding of how we explain the immediate aftermath of the Big Bang.

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00:33:00

The State of the Universe

by Brian Schmidt
The State of the Universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1244 views
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Our Universe was created in 'The Big Bang' and has been expanding ever since. Brian Schmidt describe the vital statistics of the Universe, including its size, weight, shape, age, and composition. He also tries to make sense of the Universe's past, pr....

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00:31:00

Cosmic Microwave Background Radiation and its Role in Cosmology

by Robert Wilson
Cosmic Microwave Background Radiation and its Role in Cosmology
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 2077 views
Rating:

In the first half of the 20th century other galaxies were recognized, their red shift measured and theories of the whole universe were developed. They included Big Bang and Steady State. Arno Penzias and I found the Cosmic Microwave Radiation (CMB) i....

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00:30:00

Gamma Ray Bursts: Windows on the Universe

by George Smoot
Gamma Ray Bursts: Windows on the Universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1666 views
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Gamma-Ray Bursts are the most powerful explosions in the universe. They happen about once per day in the visible universe. Their fantastic engines pump out as much energy in a matter of seconds as all the stars in a galaxy do in a billion years. This....

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00:33:00

What We Learn When We Learn that the Universe is Accelerating

by Saul Perlmutter
What We Learn When We Learn that the Universe is Accelerating
for 18-22 and upwards,
Lectures | 18-22 and upwards | 8 years ago | 1440 views
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The 1998 discovery that the universe's expansion is accelerating was not only unexpected, but it also led to the postulation of a previously-unknown 'dark energy' forming almost three-quarters of the "stuff" of the universe. How was this discovery ma....

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00:07:00

Black Holes

by Angela Luo
Black Holes
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 9 years ago | 1883 views
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A very interesting survey of the current knowledge of these strange beasts.

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00:05:00

Galaxy Clusters

by Michelle Sun
Galaxy Clusters
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 9 years ago | 2204 views
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How these ultra-large objects indicate the presence of both dark matter and dark energy.

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00:11:00

Gravitational lensing

by Hugo Westwood-Dunkley
Gravitational lensing
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 9 years ago | 1981 views
Rating:

A young scientist's thoughts

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00:05:00

Dark Matter

by Lucas Belz-Koelin
Dark Matter
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 9 years ago | 2175 views
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A really good overview of Dark Matter - from an 11-year old! https://www.geoset.info/wp-content/uploads/2015/01/Dark-Matter.pdf

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00:44:00

The Impact of Big Science on Astrophysics

by Riccardo Giacconi
The Impact of Big Science on Astrophysics
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1296 views
Rating:

The Chandra and Hubble Telescopes are in space and each costs (through operations) several billion dollars. VLT is on the ground but over 20 years of operations will also cost in excess of a billion. They all fall therefore in the category of what ....

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00:35:00

The Large Hadron Collider and the Super World

by David Gross
The Large Hadron Collider and the Super World
for 18-22 and upwards,
Lectures | 18-22 and upwards | 9 years ago | 1644 views
Rating:

In the period 1990 to 2001 many powerful new astronomical observational facilities have become operational. Hubble Space telescope was launched in 1990; it was followed by the construction of Keck I in 1992 and Keck II in 1996, by the completion of....

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