Cosmology Lecture 10
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- Опубліковано 17 вер 2024
- (March 18, 2013) Leonard Susskind discusses the inhomogeneities in the cosmic microwave background, and derives the current theory whereby these inhomogeneities are created by quantum fluctuations in the inflaton field of the early universe. These fluctuations lead to variations in energy density that ultimately result in the formation of galaxies.
Originally presented in the Stanford Continuing Studies Program.
Stanford University:
www.stanford.edu/
Continuing Studies Program:
csp.stanford.edu/
Stanford University Channel on UA-cam:
/ stanford
These lectures are truly astounding to be able to access. Almost a direct line to Dirac, Einstein and Newton for free. I can follow the calculus for the most part but more than that I have learned to appreciate how the math is really the "thing" and deeply distinct from the metaphors we try to use to visualize what the math means. You can't interrogate the metaphors -- really --unless you can interrogate the math.
Pppprppprp
I absolutely love this lecture. Amazing. Thank you professor!!!!! I will watch it over and over till I finally understand.
yea, iam so grateful for all these lectures. Its just awsome for an academical failure, but hobby physicist/cosmologist like me to be able watching full lectures from leonard susskind. :) Enjoy learning.
The most pleasurable educational experience I have discovered. I have watched the series a dozen times....Prof. Susskind obviously is very interested and enthusiastic on this subject.Then the comet grazing the sun and turning up a zombie... What a cosmic time I am having...Thanks, Stanford People!
MARILYNANDERSON88 Hi, Marilyn! I am just glad there are so many people in the world who are far, far more brilliant than me! I am happy! I have read the book 'Exploring The Earth and Moon' by the astronomer Patrick Moore ( 1923 - 2012 ). Some of it I knew but it is written in a way that a Very Special person like me can understand. It had lovely juicy pictures in it! I like Fish and Chips!
The comparison of damped oscillator and the Universe was very well explained by the Professor, Its amazing that universe is such that we can study it and understand what is going on.
Thank you so much for these precious teachings.
Thank you so much for publishing #10; been looking for it every day
Great. LS is the only person who helps me understand physics. I don't talk about computations, BUT REAL physics indeed.
Really happy with this lecture, thank you. Wave equations are amazing,
Those are absolutely beautiful blueboards
Prof. Susskind remark at 45:10 that redshift is directly related to the amount of mass at the point of origin seems to support the notion that redshift is caused by gravity and that the Universe can be thought of as constantly collapsing rather than expanding.
If one were at the center of a black hole the Universe would appear to expand even though it would be collapsing when viewed from outside.
In this perspective WMAP can be understood as the event horizon seen from inside of a black hole ;)
Maciej Jakub Bańkowski t
When it comes to cosmology what I'm primarily interested in is hypothetical gravitaional astronomy because if its possible to derive images from gravitational waves then observing the gravitational background radiation from the instant of the beginning of the universe behind the quark gluon barrier will be possible
almost sad when the lectures are done with...still confusions to deal with...we almost know syllabus's first printed page
thank you,
MASTER SUSSKIND
STANFORD UNIVERSITY
THE ONES WHO TOOK THIS INITIATIVE AND TEAM
thE best content around
thank you stanford.
LOL- I see Prof. Susskind worked so hard that he slowly slid down and down and slipped over the edge- and ripped the elbow of his shirt.... This is funnier to me than the SpaceX jacket of a few sessions ago...which I thought was a blast ... Oh, my. I think I am having a quadripole moment. Sensational!
This should be added to the cosmology playlist
Awesome!
Thanks for the upload.
A dimensional model I made when I just started to understand the basics in Physics:
i159.photobucket.com/albums/t123/phillip_ross1/DimensionalAnalysis_zps9c4ea16a.png
It might be helpful for some of you.
Are the temperature fluctuations in the CMB really due to gravitational redshift???
That upper blackboard is mechanically underdamped from 1:30:00 onwards, but what the heck is driving it?
Rolf Frankland looks like a shadow
So does that mean that when a matter and antimatter particle touch and they produce energy and release photons does that equal e= MC squared
g g go lenny go go !
Do I understand correct that de-coupling occurs at a specific temperature and the temperature fluctuations in the W-map then due to different redshift, i.e. corresponding de-coupling occurring at different times in the past?
Hopefully if I am intelligent enough to wrap my brain around Susskind's lectures, I'd know that already.
It was dry humor.
After ten times I think the Higgs boson is traveling faster than the speed of light. Relatively breaks down. Like eating breakfast for dinner.
About 18 minutes into it Professor says can make this wrong mistake by using a distance of length that we are used to using 12 the meter and someone else in the crowds is oh in the next three minutes he’s extremely angry even went to his face and give the middle finger
Does a quantum fluctuation require the existence of a field in its ground state at least --that is the existence of a field -- or can quantum fluctuations create fields, literally out of nothing ?
Are you home?
Are the harmonic oscillators responsible for the observed expansion of the universe?
When this guy says he don’t remember. He expects you to remember.
Obrigado
yeah SciAm has gone downhill. I used to read every issue in about the 1980s. Then the fourth time they gave Xerox free advertising by pretending they had written an article, and the article was about 15 year old technology that nobody was implementing, I told them it was garbage and stopped my subscription. When you need expertise, NEVER NEVER NEVER GO TO MSM. They fired all their experts and now they don't know a significant development from a hole in the wall, and too many writers google the latest results without knowing the background. end of rant.
Holy shot I get it. 38:58. Everything looks the same all around us be cause we are in the center. Or we are in the middle of an ocean on a planet Ocean I mean time and planet I mean space.
I just want to say once that I understood that just because the universe is traveling faster than light. Light can’t travel faster than the speed of the universe. Lol. I knew you knew
🙏
Garcia Brenda Martinez Timothy Gonzalez David
Nooo please make video 11
❤❤❤❤❤
into lecture(10) very lining mech.-mats.!
Fuck me...I was able to follow that lecture.
The "planck constant" is simply a perceived relationship between observed "frequency" and energy of photons. It does nothing to illuminate the nature of the universe any more than the ratio of pi does.
What about a half a planc?
Very nice Kulture 👌
Good 'ol Buckingham Pi theorem
DIVE INTO THEORETICAL MINIMUM
there was no "bang" or sound or anything, since this sound couldnt spread out through atoms, because atoms didnt exist at that
I would have never known where the word wimp came from
I understood maybe 70% of it but that was surprising to me!
His Starbucks cup says Lenny.
Professor I’m watching this at 1.75 X and just can’t seem to get anything. I’m having lots of problems trying to understand our ways to measure anything 💔😔😢
Perhaps if we’re to use blackboard that are flat we could skip anything flat 😂
Don't feed!
Priests don't have any problem giving us their ignorant opinion of what causes life and consciousness. I wish physicists would be more vocal; I'm sure there educated guess would be better that what we're getting from the "god squad".
I'm all out of lectures :(
is he eating a twinkie?
The second Was realy funny 🤣
Fair but quiet 👌🐼
😮
It have somthing beatyfully
Me Lenny Luver
These feels like wearing the wrong pair of jeans 🙄
I watched this video 10 times and I realized that the onions really pissed in off and that’s why he made it harder thank you Dr.
So much math making my head explode ! 😂😂😂 A very good lecture, but he spends to much time on harmonic oscillators.
Gotta go...
"You can make it be anything you want by tuning the parameters of the theory."
This one sentence is the only one I can remember from the video that makes any sense. Susskind is describing a house of cards with so many free parameters and kludges and different rules for different scales that it can "explain" any observation by citing innumerable exceptions and baseless assumptions.
You hang on background Radio 📻
X|N|SO 🎈
Why do you look so tired? Because it’s ridiculous?
🤔 I feel like that.
Do you know we might come from something else? ☺️ so cool. 😎
I’d like to see my Extraterrestrial me. 👽
Mike ehrmantraut vibes
Live the 🐼 in Ber
dadadadda
I think someone didnt want clar x. And clear 🎈
Here we have an x. Australien
😂
That x. Generate the rus 🤣
😂 😂 😂
Haw gone the Story later? 🤔
The video is too silent! Re-upload!
Lekture last
9?
You will never be the same
I love meth!!!!!!
Sorry... 😐 I want to see dresses...
Fake news