Brian Greene Hosts: Reality Since Einstein

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Published 2015-07-23
In celebration of the 100th anniversary of Einstein's general theory of relativity, leaders from multiple fields of physics discuss its essential insights, its lingering questions, the latest work it has sparked, and the allied fields of research that have resulted.

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Original Program Date: 05/30/2015
Host: Brian Greene
PARTICIPANTS: Gabriela González, Samir Mathur, Andrew Strominger, Cumrun Vafa, Steven Weinberg

Introduction with Brian Greene 00:00

Participant Introductions 04:25

What aspect of physics is so important that you would tattoo it on your body? 08:05

Steven Weinberg takes us from Newton to Einstein. 12:05

What was the observational support for Einstein theories? 19:20

Can Newtons ideas be extracted from Einstein's? 23:40

What did Einstein think about the Big Bang? 30:58

What did Hubble's observations discover? 33:39

What is the biggest unsolved problem in cosmology? 38:03

What is the history of Black Holes? 40:31

Einstein's thoughts on singularity. 47:33

What is a gravitational wave? 50:49

What does a gravitational wave sound like? 57:52

Combining General relativity and Quantum mechanics. 01:00:28

Cumrun Vafa on String theory. 01:10:50

Samir Mathur explains information loss at a black hole. 01:17:45

Black Holes to Wormholes. 01:28:45

Is the fabric of space time a physical thing? 01:32:24

What is the one question you would want answered in your lifetime? 01:36:37

All Comments (21)
  • Hello, YouTubers. The World Science Festival is looking for enthusiastic translation ambassadors for its YouTube translation project. To get started, all you need is a Google account. Check out Reality Since Einstein to see how the process works: youtube.com/timedtext_video?ref=share&v=3EOpHHjv5g… To create your translation, just type along with the video and save when done. Check out the full list of programs that you can contribute to here: youtube.com/timedtext_cs_panel?c=UCShHFwKyhcDo3g7h… The World Science Festival strives to cultivate a general public that's informed and awed by science. Thanks to your contributions, we can continue to share the wonder of scientific discoveries with the world.
  • Einstein was figuring all this out in his mind while people were still traveling on horses, discovering & understanding time dialation & length contraction by doing thought experiments, at a time when spaceflight was but a dream. Genius doesn't seem to do him justice, & it makes Newton & all those others even more astonishing when you consider how long ago they were figuring out all the different laws of the universe, when man's knowledge & scientific understanding was so limited, extraordinary mind's that one can but appreciate, marvel & envy. Bravo.
  • @GabrielaCambero
    It’s amazing that a mere 4 years later we have proof of gravitational waves and a picture of a black hole 😍 what’s next???
  • I love brian greene, he is the one who is inspiring me to go int o physics. I cant get enough of everything he does
  • @MrBendybruce
    I don't mind admitting I have a huge man-crush on Brian Greene. He is such an incredible educator. He makes complex and seemingly boring subjects feel magical, joyful and funny.
  • @dapdizzy
    One of the best science speakers and an amazing personality, Brian Greene. So much respect to him. He’s one of those people who attract and make you view him as a role model even though I’m not in this “role model” concept overall. Like the Higgs boson that brings pieces together and makes mass matter.
  • @KP_Oz
    Brian Greene is the best moderator of science discussions by an inflationary order of magnitude!😍
  • @77matius
    Dr. Brian Greene is one of the best! Thanks for all your hard work, Dr. Greene.
  • @martin6ariza
    2 months after this video was published gravitational waves were detected. I love science.
  • @Dr10Jeeps
    What a fascinating discussion! I wish more people on this planet would listen to brilliant scientists discuss the natural world. As an aside, Brian Greene is an excellent host of these scientific forums. His ability to rephrase an expert's statements into more simple, less technical language is masterful. And finally, as a professor of psychology for 43 years, I have realized a passion for physics during the past 10 years. I just wish I could live longer to study this field in more depth. P.S. As we all know, gravitational waves have now been detected. How exciting is that!
  • @naib5
    Wish I d meet him once in my life, Dr.Brian Greene
  • @cupajoesir
    I never realized this but Brian Greene is an excellent host! Very well handled when others tried to talk over others. Great talk!
  • @3dgar7eandro
    55:55 I come from the close future and we have finally detected the gravitational waves:):) Just as Einstein predicted This is just what the worlds needs a group of people all over the planet talking about science in a calm manner.
  • @aerobroken
    21 people currently do not like physics. This was great, but most all of them are on this awesome channel. It's a damn shame this channels videos don't get millions, and even billions of views.
  • @LarryFasnacht
    I could listen to Steven Weinberg all day. What an amazing intellect. I would love to take a class from him and can’t believe he is still teaching. I would love to know what he meant when he said that he doesn’t look at the pictures, they are misleading (or words that I interpret that way).
  • @mc-Hotsauce
    She was right about receiving that signal using Ligo. Less than 5 years.
  • thank you science guys. These YouTube videos really get people thinking and you never know where the next great ideas will come from. Hopefully programs like this will help to seek out the next genius to fill in some more of the picture. I'd love to be a fly on the wall to see what the next hundred years will bring
  • @rosenracht
    Her prediction about when the first gravitational wave would be detected was on point.
  • Hey guys!  You have to invite over Gabriela Gonzalez again!  Great speaker, explains beautiful, and was really enthusiastic at her time.