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.
  • 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
  • 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???
  • @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.
  • @MyGeezer1
    Up until 3 years ago I was familiar with Brian Green. Because of utube and Dr Tyson I became aware of two more. I am now familiar with six leading scientists that I can put into my lexicon of science . I am a 72 year old disabled Vet who is thoroughly enjoying the internet and the questions science is raising. Keep it coming guys...
  • @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.
  • @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.
  • @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!
  • @cupajoesir
    I never realized this but Brian Greene is an excellent host! Very well handled when others tried to talk over others. Great talk!
  • @naib5
    Wish I d meet him once in my life, Dr.Brian Greene
  • @hansrudolf7212
    I wish this group will sit together once more and talk about the same stuff , knowing that we now actually have the first pictures and scientific evidance of black holes and the ripple of time and space 😊
  • @2061526
    i think i'm the only person here who likes these subjects too much without understanding anything at all.
  • @martin6ariza
    2 months after this video was published gravitational waves were detected. I love science.
  • @Stanman121
    I cannot thank you guys enough for your uploads and channel. You have been a source of inspiration and knowledge for the open mind and to those who want to see the world differently, more beautifull. Thank you from South-Africa. One day I wish to sit in the audience 😉
  • I have never watched almost 2hrs clip on youtube sacrificing my night sleep...and I am taking Bachelor of Doctor of Medicine like what am I doing here...but I can say Physics has found its Spokesmen...The ones I can listen to....bravo Brian et al Much appreciation from Tanzania
  • i do not understand this complicated intellectual discussions but truly enjoying all of these incredible scientists talk
  • @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).