16 results found for cosmology

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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 | 5 years ago | 919 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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00:30:00

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 | 5 years ago | 1023 views
Rating:

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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00:31:00

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 | 5 years ago | 998 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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00:33:00

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 | 5 years ago | 808 views
Rating:

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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01:05:00

Is chemistry really so difficult?

by Andrea Sella
Is chemistry really so difficult?
for 14-19 and upwards,
Lectures | 14-19 and upwards | 5 years ago | 593 views
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Chemistry has progressed in a way few outsiders appreciate. It underpins many other sciences; from genomics and molecular biology, food and sports science, through to cosmology and planetary science. Why hasn't the public impression of chemistry evol....

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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 | 5 years ago | 1281 views
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How these ultra-large objects indicate the presence of both dark matter and dark energy.

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00:05:00

Dark Matter

by Lucas Belz-Koelin
Dark Matter
for 11-14 and upwards,
Highschool presentations | 11-14 and upwards | 5 years ago | 1199 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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00:28:00

The History of the Universe, from the Beginning to the Ultimate End

by John Mather
The History of the Universe, from the Beginning to the Ultimate End
for 18-22 and upwards,
Lectures | 18-22 and upwards | 6 years ago | 641 views
Rating:

John summarizes the history of the universe, from the Big Bang through the formation of galaxies and the Solar System, and the history of the Earth and some of the special factors enabling the formation of life.  Our future will be hot as the Sun ge....

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00:05:00

Gravity Waves

by James Pye
Gravity Waves
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 6 years ago | 1495 views
Rating:

Theory and evidence for gravity waves

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01:08:00

The asymmetric Universe

by Frank Close
The asymmetric Universe
for 14-19 and upwards,
Lectures | 14-19 and upwards | 6 years ago | 768 views
Rating:

Modern scientific theory describes a perfectly symmetrical Universe. A Universe in which matter is destroyed within an instant of its appearance and where nothing we now know could ever have happened. Human life itself seems to be lopsided, as the sp....

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01:00:00

Seeing the invisible: observing the dark side of the universe

by Sarah Bridle
Seeing the invisible: observing the dark side of the universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 5032 views
Rating:

It seems that most of the universe is made up of mysterious ingredients which we cannot see directly. Dr Bridle describes in pictures 'gravitational lensing', the bending of light by gravity, which is predicted by Einstein's General Relativity. Dr Br....

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01:05:00

The dark side of the universe

by Joe Silk
The dark side of the universe
for 18-22 and upwards,
Lectures | 18-22 and upwards | 10 years ago | 1114 views
Rating:

The emergence of cosmic structure is an outcome that has been studied by peering back through the mists of time to the remote depths of the universe as well as by deciphering the fossil structure of nearby galaxies. One of the greatest mysteries in t....

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