General Relativity Lecture 6

(October 29, 2012) Leonard Susskind presents the physics of black holes including the event horizon, the photon sphere, and the singularity.

This series is the fourth installment of a six-quarter series that explore the foundations of modern physics. In this quarter, Professor Susskind focuses on Einstein's General Theory of Relativity and in this lecture Leonard Susskind moves the course into discussions of gravity and basic gravitational fields.
Stanford University:

Stanford Continuing Studies:

Stanford University Channel on YouTube:

[popslamont]

THANK YOU STANFORD, from South Africa!

I may never get a Doctorate, I may never become a physicist, but I can still gain knowledge and information through great education institutions making their lectures available online.

[Volound]

i would rather spend an afternoon watching this than being drunk and falling all over the place.

thanks stanford, and leonard.

[FamishedMammal]

I'm so, soo glad Stanford is uploading these lectures. Making this sort of knowledge available to everyone is what makes this school one of the best in the world =)

[moosemoss]

Imagine sticking your head into the photon sphere and seeing the back your own head. The photo sphere sounds like a niche spot to set up a Barbers shop.

[WingZeroSymphonics]

This one is my personal favorite of this incredible series which has taught me GR as in depth as I had sought for. I need to meet Professor Suskind. He’s my favorite String Theorist.

[ssheffrin]

Reading the new book on GE along with listening is especially illuminating. Thanks to all.

[HaiderKhanPakistan]

Student asks a question:
Leonard Susskind: It's cookies time!

[nenowarrior]

the zoom in on Ⲝ at 1:12:35 has me in bits, gotta love the physicist's handwriting

[AT-]

These are all very precious, but this one strikes me as being particularly beautiful and gem-like. Thank you Prof. Susskind and Stanford.

[SalvatoreIndelicato]

in this lesson we are missing subtitles. You can insert them? can you insert subtitles?Thank you

[realcygnus]

all of Susskind's lectures are awesome....but this one really takes the cake is just sooo cool....man if they had this when I was a kid....thanks again Lenny & Stanford

[TheVnom]

Mind blown, that proof for evaluating the curvature of the event horizon was brilliant.

[bushje]

I am absolutely loving this series. What an extraordinary teacher. Thank you!!

[morganmitchell]

My favourite part about this whole lecture series is that the Prof. only doesn't mind answering questions because it means he can take a bite of his cake or a sip of his coffee xD

[stupidpdj]

Fantastic courses. I had to start with L's Classical Mechanics and Special Theory to get to this point, and I'm glad I did. Intense stuff.

[wagsman]

So much better than watching CNNs coverage of American

[realcygnus]

Lenny @ his 7 & 8 really take the cake thanks to him & Stanford

[davidsweeney]

yes I think Im starting to get this now ! Very well explained, thanks !

[realcygnus]

its great that a mastermind of Leonard's stature & Stanford supply this to the public...
its too good to be may put a stop to

[erwinmarschall]

Lecture 7 is now available on iTunes.(released 11/13/2012)
Stanford, could you please do YouTube-upload too.
(iTunes is highly resources consuming on my old windows-PC)
I'm awaiting eagerly another one of these marvellous lectures.
Thank you !