12 results found for astronomy

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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 | 1590 views
Rating:

Mark Hindmarch talks about our understanding of how we explain the immediate aftermath of the Big Bang.

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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 | 2084 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 | 8 years ago | 1443 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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00:05:00

Galaxy Clusters

by Michelle Sun
Galaxy Clusters
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 9 years ago | 2207 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 | 9 years ago | 2177 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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00:05:00

Gravity Waves

by James Pye
Gravity Waves
for 14-19 and upwards,
Highschool presentations | 14-19 and upwards | 9 years ago | 2302 views
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Theory and evidence for gravity waves

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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 | 14 years ago | 1690 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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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 | 14 years ago | 5683 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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00:08:00

A flash from the early Universe

by Nial Tanvir
A flash from the early Universe
for 14-19 and upwards,
Lectures | 14-19 and upwards | 14 years ago | 1948 views
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Light from a star that exploded 13 billion years ago has reached Earth, setting a new record for the most distant astronomical object yet observed. The characteristics of the explosion show that massive stars were already forming only 630 million yea....

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00:14:00

The Mathematician Who Can’t Add Up

by Emma King
The Mathematician Who Can’t Add Up
for 11-14 and upwards,
Lectures | 11-14 and upwards | 15 years ago | 2531 views
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Emma was a post-graduate student at the University of Nottingham, completing a PhD in the field of theoretical cosmology. As an undergraduate at the University of Sussex she made history when she became the first woman to win the top prize at the Sci....

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00:57:00

Overview of the Universe

by Harry Kroto
Overview of the Universe
for 14-19 and upwards,
Lectures | 14-19 and upwards | 15 years ago | 3134 views
Rating:

An overview of the Universe and its component parts e.g. galaxies, stars, planets etc.

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00:59:00

Optical (Electronic) Spectra From Space

by Harry Kroto
Optical (Electronic) Spectra From Space
for 18-22 and upwards,
Lectures | 18-22 and upwards | 15 years ago | 1896 views
Rating:

Optical (electronic) spectra from space: comets. The detection of the pulsar in the Crab Nebula. The Three Degree Background. The detection by spectroscopy of the birth of stars.

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