Top videos

Shaking Up the Dark Universe: The Dark Horses of Dark Matter | 2016
Shaking Up the Dark Universe: The Dark Horses of Dark Matter | 2016 Ambakisye-Okang Dukuzumurenyi 28 Views • 5 years ago

Forget what you think you know about dark matter. After a 30-year search for a single, as yet unidentified, species of dark matter particle that would make up some 25% of the mass of the universe, physicists are starting to consider novel explanations. Some envision invisible matter hiding within the folds of extra spatial dimensions. Others suggest not one kind of dark matter particle, but numerous species inhabiting a shadow universe. Others still conjecture that dark matter doesn’t exist, and instead propose that the laws of gravity need modification. We’ll bring together leading thinkers on dark matter—the revolutionary and conventional alike—for a distinctly unconventional discussion on the dark universe.

This program is part of the Big Ideas Series, made possible with support from the John Templeton Foundation.

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, 2016
MODERATOR: John Hockenberry
PARTICIPANTS: Katherine Freese, Justin Khoury, Stacy McGaugh, Neal Weiner, Lisa Randall

The discovery of Dark Matter 00:00

John Hockenberry introduction 3:50

Participant Introductions 8:10

What is dark matter? 9:59

Lets talk about WIMPs 15:15

How do we detect dark matter? 17:45

The standard model looks incomplete 28:46

So you want to take apart Newton and Einstein? 37:49

What role did dark matter play in the early universe? 48:00

Can dark matter be a super fluid? 55:15

Will we understand dark matter better if we know about its origins? 1:02:28

What is the headline for the next big dark matter discovery? 1:07:46

Black Holes and Holographic Worlds | 2015
Black Holes and Holographic Worlds | 2015 Ambakisye-Okang Dukuzumurenyi 28 Views • 5 years ago

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

The Elegant Universe: Episode 1 - Einstein's Dream
The Elegant Universe: Episode 1 - Einstein's Dream Ambakisye-Okang Dukuzumurenyi 28 Views • 5 years ago

Today, Einstein's goal of combining the physical laws of the universe in one theory that explains it all is the Holy Grail of modern physics.

This video falls under 17 USC § 107 - Limitations on exclusive rights: Fair use:

Notwithstanding the provisions of sections 106 and 106A, the fair use of a copyrighted work, including such use by reproduction in copies or phonorecords or by any other means specified by that section, for purposes such as criticism, comment, news reporting, teaching (including multiple copies for classroom use), scholarship, or research, is not an infringement of copyright. In determining whether the use made of a work in any particular case is a fair use the factors to be considered shall include—
(1) the purpose and character of the use, including whether such use is of a commercial nature or is for nonprofit educational purposes;
(2) the nature of the copyrighted work;
(3) the amount and substantiality of the portion used in relation to the copyrighted work as a whole; and
(4) the effect of the use upon the potential market for or value of the copyrighted work.
The fact that a work is unpublished shall not itself bar a finding of fair use if such finding is made upon consideration of all the above factors.

This video is for educational purposes ONLY

I did not make this video, nor did I supply the audio.

Both the audio and video are solely property of Public Broadcasting Service (PBS). I am seeking no type of compensation.

This documentary was made, produced, and is completely owned by Public Broadcasting Service (PBS). I am not claiming this video as my own in any way.

Once again, this video is strictly for educational purposes, and it may not be used in any other manner.

Showing 822 out of 823