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Why is there something rather than nothing? And what does ‘nothing’ really mean? More than a philosophical musing, understanding nothing may be the key to unlocking deep mysteries of the universe, from dark energy to why particles have mass. Journalist John Hockenberry hosts Nobel laureate Frank Wilczek, esteemed cosmologist John Barrow, and leading physicists Paul Davies and George Ellis as they explore physics, philosophy and the nothing they share.
This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation.
The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.
Subscribe to our YouTube Channel for all the latest from WSF.
Visit our Website: http://www.worldsciencefestival.com/
Like us on Facebook: https://www.facebook.com/worldsciencefestival
Follow us on twitter: https://twitter.com/WorldSciFest
Original Program Date: June 12, 2009
MODERATOR: John Hockenberry
PARTICIPANTS: George Ellis, Frank Wilczek, John Barrow, Paul Davies
Introduction 00:00
John Barrow lecture on how nothing can be something. 03:52
Participant introductions. 28:57
Can the beginning be ranked a zero? 30:00
Empty space and virtual particles. 37:11
Does science want there to be nothing? 40:02
Zero may not be nothing. 49:16
What do you get when you test nothing? 58:48
How do you jump from there was nothing to now we can measure nothing? 01:05:01
What if there is evidence that time changes rate and direction. 01:08:30
Does consciousness change the testing of the observer? 01:12:10
What does string theory say about nothing? 01:17:40
For all we understand about the universe, 96% of what’s out there still has scientists in the dark. Astronomical observations have established that familiar matter—atoms—accounts for only 4% of the weight of the cosmos. The rest—dark matter and dark energy—is invisible to our telescopes. But what really is this dark stuff? How do we know it’s there? And what does it do? From the formation of galaxies to the farthest reaches of space, it appears that darkness rules. Without dark matter and dark energy, the universe today and in the far future would be a completely different place. We were joined by leading researchers who smash together particles, dive into underground mines, and explore the edges of the known universe in search of clues to nature’s dark side.
This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation.
The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.
Subscribe to our YouTube Channel for all the latest from WSF.
Visit our Website: http://www.worldsciencefestival.com/
Like us on Facebook: https://www.facebook.com/worldsciencefestival
Follow us on twitter: https://twitter.com/WorldSciFest
Original Program Date: June 2, 2011
MODERATOR: John Hockenberry
PARTICIPANTS: Brian Greene, Glennys Farrar, Katherine Freese, Michael Turner, Saul Perlmutter, Elena Aprile, MOMIX
Brian Greene's introduction on dark matter. 00:22
What we don,t see by MOMIX 07:00
John Hockenberry's Introduction. 16:17
Participant Introductions 21:05
Why do we know that there is dark matter? 25:10
The lensing effect that reveals dark matter. 31:33
A computer simulation of what dark matter was doing as the universe was expanding. 37:11
Capturing Wimps with the XENON100. 41:40
What the XENON100 detector looks like. 48:20
Where do we go to find events that prove dark matter exists? 56:18
If lensing is correct, could that determine an unknown force? 01:00:43
Supersymmetry vs Another Universal Brane. 01:09:20
Using a supernova to detect Dark Matter. 01:15:40
How does a supernova tell you about dark matter? 01:21:20
How did Einstein predict that dark energy existed? 01:26:18
What is the counter explanation of dark energy? 01:30:40
The ratio of dark energy makes a perfect environment for life. 01:35:30
Marcia Bartusiak joins Kip Thorne, Laura Danly and Rainer Weiss to demonstrate how two observatories on opposite sides of the country, called LIGO (Laser Interferometer Gravitational-wave Observatory), may open a new window on observing the cosmos—one based not in light but in gravity. Scientists have embarked on this joint experiment, seeking whispers of far-away violence—like the collision between distant black holes—rippling through the cosmos. It’s taken nearly a century, but technology has finally caught up to Einstein’s brilliance. His 1916 General Theory of Relativity predicted the existence of gravitational waves—undulations in the very fabric of space and time—and LIGO researchers are now poised to detect them.
The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.
Subscribe to our YouTube Channel for all the latest from WSF.
Visit our Website: http://www.worldsciencefestival.com/
Like us on Facebook: https://www.facebook.com/worldsciencefestival
Follow us on twitter: https://twitter.com/WorldSciFest
Original Program Date: June 4, 2010
MODERATOR: Marcia Bartusiak
PARTICIPANTS: Andrea Lommen, Kip S. Thorne, Laura Danly, Rai Weiss
The Sound of the future 00:00
Marcia Bartusiak's Introduction 00:40
The history of gravity. 05:55
Participant Introductions. 08:02
How did we get here from the past? 12:11
The universal rate of acceleration. 18:43
What drew Einstein to rethink Newton's ideas. 24:30
What Einstein predicted. 29:28
What happens when two black holes collide? 35:35
Stumbling on to a binary pulsar 40:30
Why do you study something that doesn't exist? 46:10
Measuring the strain of the universe. 53:35
LIGOS the gravitational tape measure. 59:35
When do you hear the gravity wave? 01:09:30
What are the new surprises to look forward to? 01:16:00
What would you expect space time to look like when black holes collide? 01:22:25
Black holes are gravitational behemoths that dramatically twist space and time. Recently, they’ve also pointed researchers to a remarkable proposal—that everything we see may be akin to a hologram. Alan Alda joins Kip Thorne, Robbert Dijkgraaf and other renowned researchers on an odyssey through one of nature’s most spectacular creations, and learn how they are leading scientists to rewrite the rules of reality.
The World Science Festival gathers great minds in science and the arts to produce live and digital content that allows a broad general audience to engage with scientific discoveries. Our mission is to cultivate a general public informed by science, inspired by its wonder, convinced of its value, and prepared to engage with its implications for the future.
Subscribe to our YouTube Channel for all the latest from WSF.
Visit our Website: http://www.worldsciencefestival.com/
Like us on Facebook: https://www.facebook.com/worldsciencefestival
Follow us on twitter: https://twitter.com/WorldSciFest
Original Program Date: June 3, 2010
MODERATOR: Alan Alda
PARTICIPANTS: Andrew Hamilton, Kip S. Thorne, Raphael Bousso, Robbert Dijkgraaf
Brian Greene's Introduction with Stephen Hawking. 00:00
Robbert Dijkgraaf talks about black holes.. 01:45
Participant Introductions with Alan Alda 09:19
Einsteins law of time warps. 15:08
Where black holes around when the universe was forming? 19:50
Hawking radiation is it coming from the black hole or off the black hole. 27:09
How are black holes formed at subatomic levels? 38:05
What does a black hole look like? 43:56
The panel travels into the black hole. 50:43
What you would see if you entered a black hole. 58:45
Space falls faster than light. 01:05:30
What is a hologram. 01:11:40
Black holes and information loss. 01:15:12
How much information can a black hole store? 01:23:30
Easy to understand animation explaining all of Einstein's Theory. Covers both Special Relativity and General Relativity.
Explains variables, systems of equations, Cartesian coordinates, and many other concepts. Fun and educational for all ages.
According to our best theories of physics, the fundamental building blocks of matter are not particles, but continuous fluid-like substances known as 'quantum fields'. David Tong explains what we know about these fields, and how they fit into our understanding of the Universe.
Watch the Q&A here: https://youtu.be/QUMeKDlgKmk
Subscribe for regular science videos: http://bit.ly/RiSubscRibe
David Tong is a professor of theoretical physics at Cambridge University, specialising in quantum field theory.
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Lucie Green takes us on a journey from the centre of the sun to planet earth in a run-down of the latest solar physics research.
Watch the Q&A here: https://www.youtube.com/watch?v=0JkxTILe2Nk
Lucie's book "15 Million Degrees: A Journey to the Centre of the Sun" is available to buy now - https://geni.us/2oB8V
110 times wider than Earth; 15 million degrees at its core; an atmosphere so huge that Earth is actually within it: come and meet the star of our solar system.
Light takes eight minutes to reach Earth from the surface of the Sun. But its journey within the Sun takes hundreds of thousands of years. What is going on in there? What are light and heat? How does the Sun produce them and how on earth did scientists discover this? Since the Royal Institution was founded in 1799 our knowledge of the Sun has changed dramatically and much of the work was carried out at the Ri.
Join Lucie Green for an enlightening talk, taking you from inside the Sun to its surface and to Earth, to discover how the Sun works, how a solar storm can threaten the modern technology that society relies on and more of the latest research in solar physics.
Lucie Green is a Professor of Physics based at the Mullard Space Science Laboratory, UCL’s Department of Space and Climate Physics. She studies activity in the atmosphere of our nearest star, the Sun. In particular, she looks at immense magnetic fields in the Sun’s atmosphere which sporadically erupt into the Solar System.
Lucie is very active in public engagement with science, regularly giving public talks and appearing on TV shows like Sky at Night.
Subscribe for regular science videos: http://bit.ly/RiSubscRibe
The Ri is on Twitter: http://twitter.com/ri_science
and Facebook: http://www.facebook.com/royalinstitution
and Tumblr: http://ri-science.tumblr.com/
Our editorial policy: http://www.rigb.org/home/editorial-policy
Subscribe for the latest science videos: http://bit.ly/RiNewsletter
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QTV NEWS IN MANDINKA 17 June 2021
