Gravitational Waves: A New Era of Astronomy Begins
Δημοσιεύτηκε στις 22 Ιουν 2016
On
September 14th, 2015, a ripple in the fabric of space, created by the
violent collision of two distant black holes over a billion years ago,
washed across the Earth. As it did, two laser-based detectors, 50 years
in the making – one in Louisiana and the other in Washington State –
momentarily twitched, confirming a century-old prediction by Albert
Einstein and marking the opening of a new era in astronomy. Join some of
the very scientists responsible for this most anticipated discovery of
our age and see how gravitational waves will be used to explore the
universe like never before.
This program will feature exclusive
footage from director Les Guthman’s upcoming documentary chronicling the
drama of the gravitational waves discovery.
Original Program Date: June 4, 2016
MODERATOR: Brian Greene
PARTICIPANTS: Barry Barish, Nergis Mavalvala, Frans Pretorius, David Shoemaker, Rai Weiss
Brian Greene's Introduction - 00:15
Einsteins prediction of bending light - 5:58
Participant Introductions - 9:55
Chapter one: The Discovery - 11:37
The rumors of a gravitational wave - 14:40
How LIGO almost missed the gravitational wave - 19:16
BICEP2 and getting it right - 22:34
Could we have recreated this experiment without a gravitational wave? - 27:09
Chapter two: The Numerical Relativity - 29:30
So you detect a gravitational wave, what does that mean? - 31:58
Black holes vs Neutron stars - 48:12
Chapter three: Detection - 54:31
How lLIGO Laboratory works - 1:04:06
How do you shield the laser from the other waves in the world? - 1:09:00
The move from LIGO to Advanced LIGO 1:12:24
Giving credit to Barry Barish - 1:20:04
Chapter four: The Future of LIGO 1:24:40
eLISA and a space interferometer - 1:27:40
Mathematically solving the future of colliding black holes 1:32:00
September 14th, 2015, a ripple in the fabric of space, created by the
violent collision of two distant black holes over a billion years ago,
washed across the Earth. As it did, two laser-based detectors, 50 years
in the making – one in Louisiana and the other in Washington State –
momentarily twitched, confirming a century-old prediction by Albert
Einstein and marking the opening of a new era in astronomy. Join some of
the very scientists responsible for this most anticipated discovery of
our age and see how gravitational waves will be used to explore the
universe like never before.
This program will feature exclusive
footage from director Les Guthman’s upcoming documentary chronicling the
drama of the gravitational waves discovery.
Original Program Date: June 4, 2016
MODERATOR: Brian Greene
PARTICIPANTS: Barry Barish, Nergis Mavalvala, Frans Pretorius, David Shoemaker, Rai Weiss
Brian Greene's Introduction - 00:15
Einsteins prediction of bending light - 5:58
Participant Introductions - 9:55
Chapter one: The Discovery - 11:37
The rumors of a gravitational wave - 14:40
How LIGO almost missed the gravitational wave - 19:16
BICEP2 and getting it right - 22:34
Could we have recreated this experiment without a gravitational wave? - 27:09
Chapter two: The Numerical Relativity - 29:30
So you detect a gravitational wave, what does that mean? - 31:58
Black holes vs Neutron stars - 48:12
Chapter three: Detection - 54:31
How lLIGO Laboratory works - 1:04:06
How do you shield the laser from the other waves in the world? - 1:09:00
The move from LIGO to Advanced LIGO 1:12:24
Giving credit to Barry Barish - 1:20:04
Chapter four: The Future of LIGO 1:24:40
eLISA and a space interferometer - 1:27:40
Mathematically solving the future of colliding black holes 1:32:00
Κατηγορία
Άδεια
- Τυπική άδεια YouTube
ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 23/6/2016
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