Cosmology | Lecture 8

[a3th3r]

Statistical Mechanics is the 6th portion of this series of lectures for anyone who was wondering.

[derfisiker]

muddled mess.

[ibreakkidslegs]

this scalar field business barely deserves the label of an explanation

[1isaacmusic]

One of these days he's going to forget which hand has the chalk and which hand has the cookie O:

[agapitoflores001]

This is simply great! Nice lecture video.

[dragonograd]

Where does 10^(-123) come from? Since 10^(-123) ~ 2^(-408) and there may be 408 types of particles in the universe. Given one of each particle in order in a line with random spin what is the probability that each will have spin-up? Answer 10^(-123).

Obviously this is contrived but goes to show how the number could come from combinatorial principles and probabilities.

[dragonograd]

A example of an formula which matches the instanton potential curve V(rho) described might be:

rho_0 + phi^2

------------------

1 + phi^2

in units where rho_0 is small compared to 1. This curve is almost flat except in the middle where it dips sharply to rho_0.

[otavioandradas]

I always want to eat cookies while watching these amazing lectures!!!

[FallofDarkness55]

Susskind should be my professor.

[zzzIdividedbyzerozzz]

Excellent lecture.... and the moron below me fails to understand that mathematics is the most objective subject we know of; whereas the arts, such as dance, is one of the most subjective.

[philosophicalleo405]

Susskind teaching cosmology, testing conformity?

Delivering hypothetical constants in order to make mathematical abstractions appear tangible?

Make data agree with points of scientific dogma by factoring equations designed specifically to hide facts anomalous to a cannon of thought.

Comparing sensory inputs under meditation all principles will become apparent. The nomenclature to describe these principles is best described using condensed or vocal imagery, possibly dance, never mathematics.

[drrobertoboogie97]

@philosophicalleo405 The cosmological constant is not hypothetical. It is tested many times to be 10^-123.

[airforcemax]

Impressive.

[MalaTemporaCurrunt]

the physics of cookies.

[TheEliteTrollClub]

Prof. Leonardgranted me a Stanford degree in Cosmology after I wrote I understood and watched all the lectures!

[mrkvamaster]

Why couldn't gravity create "lumpiness" out of a universe that is perfectly smooth? I mean, the quantum fluctuations are still there, so it is not PERFECTLY smooth at all...

[sidexwalk]

I wouldn't have passed without this guy.

[dingolovethrob]

Although i'm afraid i'd fail the end of term exams i have really enjoyed these lectures!

Thank You.

[Chilledtea]

As Leonard Susskind said in another set of lectures, "The final exam is buying me lunch".

:)

[GuerrillaForce]

Whoa! Unexpected change of venue. After watching this series of lectures I'm almost uncomfortable seeing him in front of a board that's not white ;)

Much respect for Dr. Susskind.

[mrazrad]

Yeah, I almost thought I clicked on the wrong link. No accidentally grabbing markers that have ran out of ink but haven't been thrown away?!? That is 1/2 the fun of the videos!

[n800064447]

You're right. There is lots of math - including algebra - in physics. Good observation!