Lecture 4 | String Theory and M-Theory

[MAUERBAU1]

is this science or kindergarden?

i cant imagine, that this guy wants to be taken serious.his treating of mathematics is a

slash in the face for every serious mathematician.

this of course is speculative so called science at its best.

[xsmopsis]

@MAUERBAU1 mathematics is a tool if you use it correctley you don't have to reat it well.

[TomFynn]

@MAUERBAU1 As you can see from the commentary this is from "Stanford's Continuing Studies". Meant for the public, not for specialists. First read, then rant.

[jafe2002]

Great lectures! Thank you! That's it 49:12 :)

[GBart]

I need practice problems to do for homework.

Also when's the exam?

[Dilaton100]

LOL, Lenny Susskind explains where my nickname comes from ...

I just love him for giving such nice lectures :-)

[grunder20]

stanford is the best!

[Reuel0312]

I think i can answer my own question, but just see if I'm right on this. At this point the Higgs mechanism hasn't been established - and by that i mean the interactions with its own field and so at this moment can be considered massless

[Reuel0312]

When considering the operation where you generate the spin 2 states (from the ground state) and then also spin 0 states you also say the that the spin 0 is also massless, however I was under the impression this was a candidate for the higgs, which has mass. So i guess my question is, is this where the higgs idea is generated, if this is so where does the mass come from, or this just a coincidence and I've just been fooled?

[agapitoflores001]

Two thumbs yup! They have great lectures at Stanford.

[radicalsquare]

Thank you Stanford for uploading these. What a unique and rare opportunity to learn from this brilliant man.

[cliffhanger625]

Thank you so much for this series. I've been studying string theory on my own for about a year now, using Zwiebach's textbook and a series of lecture notes from t'Hooft, mostly. Thank you Prof. Susskind and Stanford! These lecture have been a lifesaver for me.

[Taqu3]

LMAO!

[SanchezBonzela]

Genius! Going through those mathematics to him is as simple as eating his chocolate chip cookies.... His lectures on Cosmology and String Theory are so incredibly fascinating that i'm tempted going back to study math to get the essence of them.

[tfob06]

Can't get enough of these lectures. Thank you.

[luzzie9]

A really unique lecture...there is no place on earth that has a more understandable

explanation of string states in general and gravitons in particular. Dr. Susskind is a truly gifted lecturer and I only wish that I could hear him in person.

[dragonograd]

watching one of these a night.