Einstein's General Theory of Relativity | Lecture 1 

Information to the masses. Knowledge belongs to no man but the people.

Marc Watt a button? you have one of those in these "incredible times"?

You really have to go to a free online physics lecture to find people with the correct appreciation for the wonders of our modern world :) thx mate

I was just thinking that

Not the smartest comment, if they charge us next time for watching a lecture its on you!

Only people who in fact aren't formally educated in physics come here to feel better about themselves . Why ? It's quite simple it makes them believe that there more educated it that department than they actually are , so they feel smarter . The reality is that without a rigorous background in mathematics , all those things only lead to superficial knowledge , that isn't of any use . Here you will also see students , who have the "horrendous" desire of wanting to make a revision or listen to how another professor explains it , who dare they ? And most importantly who dare they criticize ?

+Dimitri we just want to learn, I'm 16 I can't go to university and do theoretical physics; but I love reading about them all. Is that a problem.

+I've walked the Divide i think he's projecting, we should let him be.

Everybody now back off , she knows how to project , all stand in awe of the mathematical genius or she will demonstrate her skills in Retraction , which will make Euler resurrect and kill us all . P.S. Psychology is witch-doctoring (Feynman)

Dimitri I'm formally educated in physics and I come here. So, how does that work. Also that must mean you think the people who are attending this course are in the same spot? Get over yourself man, you can learn a LOT about physics with no math. Will you understand it to the level that someone who sees where these equations were derived from? No, but you can get a large percentage of the understanding without that, and thats what a lot of people want. If you want those few final percentage points of understanding, great, get formally educated. Thats what I want too, but DONT shit on the people who enjoy this as a passive hobby.

At the age of 67, it reminded me of my college physics classes

That is the great thing about Leonard Susskind, he describes complex ideas in a clear, concise fashion...and in an interesting way...

WHAT EINSTIEN SAID ABOUT HIS THEORY OF RELATIVITY IS THIS. THAT IF YOU TOOK 2 NEW BORN TWINS AND LEFT ONE ON THE EARTH AND PUT THE OTHER ONE IN A ROCKET SHIP TRAVELING THE SPEED OF LIGHT. AFTER HE LEFT THE EARTH FOR A CERTAIN TIME DURATION LET'S SAY 30, 40, 50, 60 MINUTES. WHEN THE BROTHER RETURNED FROM HIS FLIGHT IN THAT ROCKET SHIP. HE WOULD FIND HIS BROTHER DEAD IN THE GRAVE. FOR YEARS THEY GAVE NO CREDENCE TO EINSTIEN'S THEORY UNTIL THE FIRST ROCKET SHIP WAS SENT UP INTO SPACE. WHERE THE CHRONOLOGICAL CLOCKS HERE ON THE EARTH AND THOSE IN THE ROCKET WERE OUT OF SYNCH. AS THEY FLEW MORE AND MORE ROCKET MISSIONS TIME AND TIME AGAIN THEY WERE OUT OF SYNCHRONICITY AND THIS PROVED EINSTEIN'S THEORY TO BE TRUE.

Try this don’t think of math as calculations rather as a language watch him explain each variables/letters and what they mean in the equation he’s writing anything you can’t connect like an example would be What is M or a Or F or let’s say for instance Vector. Google it find out it’s meaning ok Vector in physics, a quantity that has both magnitude and direction. ... It is typically represented by an arrow whose direction is the same as that of the quantity and whose length is proportional to the quantity's magnitude. Now that you know the meaning you should be able to connect each equations, laws what so ever in a more simple way. Honestly I’m not completely sure if I make any sense in what I’m saying but for me I understand on some level what he’s explaining and I’m just a 24 year old Mechanic with a High school diploma but a man can dream of being an Astrophysicist.

K B, you’re 57 now. Just thought you should know.

i would do it too coffe brings a more awaking talking.

make it two coffees on each thumb, and two more In the hands. and you got it right.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-jasV928pbPw.html

@@SernasHeptaDimesionalSpace ''nh'''rr'r''j'rtnn'rnran'?'j?4r'j'r4+5t?'r''''nr'''r'r'??''''?3?45??4?+4'rn'h5??nr??4??;4?4?'rjr+?'nn'tn??4!4r5-??1+4!?jh''rn'rr+4'f'j'''rr'r-??4?'?44&!?!?4?5'j'e''?!+55-!??4?4''rn'''+++4??+35h-4'nj''j'rhj'''r?4?+h''j'r'h?!4?+??44?412!!??4??!?4!??3??4j????++?t?5jj?5?!?+????3!?4j??4???5'''n'r?4!??-4!!?n5'r'n5j?r?4'r'r'r?4''4???'''t''''rn''''rr''e??+nt'a4n''n''r''j'nrt4😅-er'z+'''??45??4?!'zj'jh?4je'rn'4'''y''r????4?h'+?++?z'n+???4??!53?'rr?'!+?'''rg4'!?5😅&?!?44+'r''r'j???j?4!????5??j'''r?4''?'???4?45'r'+5?4'n'''''??4?!?''j'nr'r're?+j+54'r'j''hn''h?!?+5?'nj''t?!?3&?4?5??''''''rj??4r?j''n'nr?4?+'t'n'r??jn''t4?????????++??;?4r'?2'+nj'j?'tae''rj'r''r??'j!€?4?!?+??4?!+;??4n'ej??!-??44!!t?4+?4??6+''enrjjt??&+?4!4?j''r''''?&?&?4-??!?????-?++?4?+'r'?4'r'n'?''+j'rj+5?43j''j?+?5??4?5n?&!4'r'???4j'rr'';??+!'r?4?+!?;'r'r''j''''h'''n?3!?+rt'''t?4??4+?4'''nj't'r?4+????????++?4??r!4??34rr???'jj????'j'''??5+???-????5?4!?4+4rh??4?4??+'r''???4??'''rn'??j'''r??4?+?4!+''''?4??4?+????3'''r'e'rr''r'''t!''jnr''rj'r't'r+'rt''z'''j+-?!4??4+?4?4?4?+4?????+!!+5?4'hzj'j'?5''n'h''''r'n'''''jn'''h''n'+??+jr44''''???????4+''r'z'j''''n&13jr+5nr?+????+'j+??4?4??'?!????&?4!?4j''''e'''rn'hej'e'?4?4??!?4-?????+-5?jjr'''''hh''r''?4+4+?+3?!?r?+????44??4??+??+?4!?'j'n'r'??'???4?4??+5?4''j'??+?++j''t''t?&!2''h'''''j'''r'j'''nh'''t!?4?4?4?6??4??2!??????3+?4j???????4rj'''jet''''j'j'g+??4+???5????!44?4??44?;??5😅+?''+?3?+4rz''rj'?5rn4j'nr''''''+?4r???+''r'''''''??+!?'j'r'ha'''nr''r'rr?!??+?'?????4!''he'??4j''y''''??????4-???-4??4???4!''+??????????!!4'r?2?6'e'+???!j''t''t!+?''??????4?+??'''j'''''e'r?4?3????+4nb''r'r??3r'j'rh'rnn'r''''''''h'''?4????+?3?????''''er+??!?43?3nt Edit: wtf I didn't even know i commented this or how i got to this vid most have happened when I was sleeping hahahaahahah

@@Wild-Wood yeah yeah. What've you been told before about tryin' to summon those forces...

are you from the future ?

@@PeterVanHertum only relative to the video recording

@Infamous Grizzly look up professor Dave ;)

@Infamous Grizzly call him whatever you’d like.. it doesn’t change the fact that he’s right & you’re wrong.

@Infamous Grizzly the irony

I love people like that.

The wisest of the men will tell you they don't know something when they don't. Socrates was like that.

Goulg!

Ofcourse he does..he is the famous Professor Leonard Susskind..he is the first theoritical physicist who introduced the string theory...

falto

Joe Chudleigh You're never too old.

Nothing can stop you from learning what you like :)

+Joe Chudleigh You are damn right! jejejejeje

just feel lucky you live in a time to have access to this great man

Joe Chudleigh me too,sir.

Nice to see that the youth is interested in science and philosophy! In your generation, you have the advantage of being able to choose the best lecturers thanks to the Internet media! Enjoy your hopefully lifelong studies, which will ultimately be a tremendous enrichment for your life!

@@hannslunninger416 Thanks, i agreed with your comment and i think my generation really has everything on the internet, but also i think that my generation is also very addicted to social media and phones. At least there is still some that will always enjoy physics.

@@davidgamer5471 Young Man, I am proud of you. Keep your head straight. It's your sophistication that makes me write to you as a 32 year old. If i sense this in you at your age; I can only imagine what you will become.

@david gamer same here bro. Also 14. I want to pursue engineering in the future, which is why I am studying this to get a head start in my Physics classes. Wish you luck man

@@lyotimachida5380 Thank you very much!

this is pure junk. gravity is an unproven theory that has no basis in reality space is not a vacuum, there is an aether. the speed of light is the same coordinates as the pyramid of Giza.

@@Hey.bekind777y 😂😂😂

@@Hey.bekind777y If gravity is an unproven theory, then what keeps us in orbit with the sun? what keeps our arm in the milky way from separating from the galaxy itself? how would you personally describe entropy? Also, with the pyramids of Giza, that's only a bizarre (and very obvious, upon inspection) coincidence that arises from the speed of light being measured in SI units, meters per second. The speed of light used as a coordinate (only the north coordinate, 29.972°N) can correspond with the pyramids, but it can also correspond with anything on that coordinate line (think of it as like a ring around the Earth where you can place the coordinate). We could also choose the coordinate to represent the spend of light to be 2.99792°N (which would closer to the scientific way of writing the speed of light). We could also change the speed of light to natural units, in which case its respective coordinate would only be 1°N. We could switch the speed of light into feet per second or inches per second and get different results too for the respective coordinate. I hope this helps you see why that particular conspiracy theory is incorrect. If you have any questions about this feel free to ask :)

So he's saying Earth is flat and there's a dome over us cannot measure a round surface using gravity impossible

they have true understanding of their subject, something that can only be said of a very few people in the universe

String theory has not been proven.

@@ultradudexd Thats why its called a THEORY, genius

​@@eragonshadeslayer1790 Theory is not about being proven. Theory is used as hypothesis or guess in daily life conversations but this is just a misunderstanding. (see scientific theory)

to began with hes entanglements are not corect - there not like lasagnna but X FORM HEXAGONAL CONE SHAPED.

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

Hello Sir ! I was just randomly going thorugh comments and got this One. I am 30y old and left my Physics studies 10 years ago due to some financial issues and lack of academic facculties here in India. But I have been planning going back into (Physics) again since 2019 And Today I've came to know another conscious apect of getting back to Physics I'm feeling Cherished and Enlightened inside 🌚💪🏼 Such an Elegant Time to be alive to witness all these free Knoledge through Internet ✨ Thankyou 💫

Ooom. O

@@dipanshuns i hope you are doing good

​@@dipanshuns write tifr exam

​@@noone-ip8qs THE CLEAR, MATHEMATICAL, INTEGRATED, EXTENSIVE, LOGICAL, BALANCED, AND IRREFUTABLE PROOF THAT ELECTROMAGNETISM/energy is gravity: One, TWO, AND three dimensional SPACE are CLEARLY and perfectly consistent with what is E=MC2, TIME, AND what is GRAVITY. Consider what is THE EYE along WITH the fact that the stars AND PLANETS are POINTS in the night sky ON BALANCE. (c squared CLEARLY represents a dimension of SPACE ON BALANCE !!!!) What is E=MC2 is taken directly from F=ma, AS gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE; AS ELECTROMAGNETISM/energy is CLEARLY (AND NECESSARILY) proven to be gravity (ON/IN BALANCE); AS the rotation of WHAT IS THE MOON matches it's revolution; AS the stars AND PLANETS are POINTS in the night sky ON BALANCE. Indeed, TIME is NECESSARILY possible/potential AND actual ON/IN BALANCE. Great. By Frank Martin DiMeglio

😂😂 why didn't this comment get more exposure?!😭

im diymgn kkkkkkkkkkkk

man i cant stop repeating this part help me

This comment on LSD😂😂😂

Looool

No problem

i half watch them for entertainment, half to learn cool things. i don't understand a lot of stuff related to this but i am slightly learning

Software engineering is easy.

@@Karuska22ps yeah easy and fun not everything should be sophisticated right

Щ

Шл

Do you understand it?

It's not round It's flat ?

WHAT EINSTIEN SAID ABOUT HIS THEORY OF RELATIVITY IS THIS. THAT IF YOU TOOK 2 NEW BORN TWINS AND LEFT ONE ON THE EARTH AND PUT THE OTHER ONE IN A ROCKET SHIP TRAVELING THE SPEED OF LIGHT. AFTER HE LEFT THE EARTH FOR A CERTAIN TIME DURATION LET'S SAY 30, 40, 50, 60 MINUTES. WHEN THE BROTHER RETURNED FROM HIS FLIGHT IN THAT ROCKET SHIP. HE WOULD FIND HIS BROTHER DEAD IN THE GRAVE. FOR YEARS THEY GAVE NO CREDENCE TO EINSTIEN'S THEORY UNTIL THE FIRST ROCKET SHIP WAS SENT UP INTO SPACE. WHERE THE CHRONOLOGICAL CLOCKS HERE ON THE EARTH AND THOSE IN THE ROCKET WERE OUT OF SYNCH. AS THEY FLEW MORE AND MORE ROCKET MISSIONS TIME AND TIME AGAIN THEY WERE OUT OF SYNCHRONICITY AND THIS PROVED EINSTEIN'S THEORY TO BE TRUE.

Myles this is not an intro class u might need a newtonian physics or math catch up if your having trouble

@@daviddonaldson288 this is an intro class lol. I probably would have understood it with 0 prior knowledge. Speaks to how well Susskind knows the subject.

i see you are man of culture as well

Bountiful indeed.

That's sus

@@smuckleschmuckler2486 mm. N man man 🦜🦥💦🍋🦉🪲🙊🙉🐻‍❄️🪖👝👝👛👛👓🐼🐔🐻‍❄️🦅🐧🐻‍❄️🐹👓👓🦇🦁

@@erictko85 u in a bit huhh but I’m not sure what to say I don’t think it’s a good thing I just Yu be able I can do úaWe Hardy’s try aha right s F CBC cbxXnbK K Ask free

yes, and it is not the only video with that. Dr Susskind must learn how to shut up some people

Agreed

Those questions clarify the subject, it helps looking from a different angle. If you don't see the benefit of such questions i don't see the point of having questions

turin turamba It interrupts the flow of information. The professor has worked very hard to format his approach to flow logically, and these questions break up that flow for everybody else in the room. Save your questions for the end. Be respectful.

@@markg7963 if you are a true scientist, especially theoretical physics you can talk for hours on different topics and then comes back to precisely where you left off as this professor demonstrated several times. Fresh minded students don't have that, and most ideas come spontaneously at the moment. If you have questions at the end it is pointless. At work I've seen too many meetings with silent questions at the end so im tired of those. And science is not about knowing or not knowing, it's about learning so no matter the question it is worth asking

+Pablo o.O people dropped the class "lol".

rofl

Kids who saw Interstellar and wanted to learn the mathematics behind General Relativity when they can't do calculus xD That's why

Says it all.

You made me cry Columbo Bumbo :'(

Acedemic success relies on a students motivation

Grades don't much if anything to do with intelligence and the people at a private school like Stanford aren't necessarily smarter than people at a CSU. And in fact, the pain and theft inflicted and unleashed upon us after hundreds of years of Yale and Harvard grads suggests that you definitely shouldn't idolize these private school grads, in fact you should be skeptical

In also watching this near Thanksgiving how strange

Ah yes, Heisenberg ...

You mean hitman of Gus Fring but yes lol

MIKE

Nice stolen comment from his lecture on black holes

lmao

😂

i cant stop laughing

hahaha. I came to the comments about that sound. Thanks for clearing that up. Notice at 14:45 that Dr Susskind went over to check on it and said "eh I think it's alright"

I can't describe how funny I found this comment to be

Come to give me motion sickness again

Lmao I'm watching this in 144p

fewer pixels to distract from the information

Lies again? Big ego

What did you get your undergrad in?

Since you dig this, get a degree in the field. That feeling of completion with college degrees is great. Colleges have adjusted quite nicely online as well.

@@bobablaw1298degrees mean nothing, many of the billionaires were drop outs from college and high school

@@QraQrJaq How many do you have? If you don't have any, then you really cannot dismiss the experience.

@@bobablaw1298 I have 2 but that’s irrelevant. Experience and personality is the only thing relevant, and you don’t need a degree, or the experience of a university, for that. Real world experience would be far more beneficial.

@@QraQrJaq What are you referring to? And I don't believe you. You didn't even start with a point of reference, and your point (whatever it may be) is going nowhere.

Wait, do I know you?

+Popo Sandybanks Being a prof. doesn't pay like it used to. ;)

+AColonDashSix -- It still gives an average of $80 000 a year, depending on your field of study. Science and math professors are generally paid more than those in English or history.

Yeah Science Bitch!

Do I know you, Popo?

nidurnevets that's the spirit. sucking up for that good grade. do what you need to do

Here you go: www.flight-light-and-spin.com/relativity/gravitational-waves%2Bgeneral-relativity.htm

I know right. This guy explains it amazingly.

Response videos came and went like a fad, but for once if LS could only stop pacing the floor needlessly, that would help a lot.

Skindoggiedog Jeez man can you chill out quit being fucking douche

Orion Jackson don’t listen to Skindoggiedog. You can do anything you set your mind to do. I was (am still) passionate about physics when I was younger too. (I’m doing really well in school not, despite being terrible at math. Overcome obstacles.) All the great minds throughout history started somewhere, and I’m sure they had their fair share of negative comments. That’s what separates you from the rest - when things get hard/discouraging.

Skindoggiedog, ok, then what are you? Who are you to say such? Do something beneficial to help others and you’d feel like people cared about you too, because they would. Hurt others, as you are here, and you’ll continue growing more bitter. It’s your choice.

yezypblo6 don’t stoop to that level yourself...

Skindoggiedog skindoggiedog. Nice name lmao.

WeKnowTheTruth2012 Everything suuuuuucks if u think about it, it's all nonsense. I liked your comment btw..no hate.

WeKnowTheTruth2012 I shall see you in a few years when u'll be at uni, you will say I wish I was still at HS :)

Highschool did suck - too institutional & regimented no opportunities at upward mobility

WeKnowTheTruth2012 I felt the same way when I was in high school. I was that person who understood and thought these types of concepts and equations were fun. :P

WeKnowTheTruth2012 University is all fun and interesting until a few weeks before exams.

Tried and failed Einstine to many speacies for.chance.is not.giberish.

And what’s going on with the guy at 15:01

***** ... thank you Henry ... the last one was blank lol ... I WILL listen to this WHOLE vid at a later date as busy goofing around at moment ... and do appreciate it very much ... warm wishes to all in Japan ... :)

Julie-Anne Herridge Thank you!!!!

***** ... thank YOU ! .... warmly hugging everyone there .... and posting hugs with stardust smiles on the storm winds that blow here now .... which will hopefully collide with winds there and draw some of Japan's wind away , not make it worse! .... ;) xo

Happy birthday. :-)

Happy birthday !! Best wishes

As much as he sound like some bloke from /r/iamverysmart he's not wrong

After 14 years we find a video that help us😢😢😢😢😢😢😢😢😢😢😢😢😢

Yes, it is interesting but you don't seem to grasp Spelling dude! Just a hint from me - there is an "edit" button and check something twice before posting it on behalf of a nation. Some random idiot with a dictionary and not a single better thing to do might start trolling you. ¯\_(ツ)_/¯

@@user-ln6bq1gc9t Cockwomble, Wankpuffin. Not all English is in that dicktionary ¯\_(ツ)_/¯

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

@정은유 WHEN NASA SENT UP THE APOLLO SPACE FLIGHTS EACH TIME THE CAPSULES THAT RETURNED THE CHRONOLOGICAL CLOCKS WERE NO LONGER SYCHRONIZED WITH THE EARTHLY CLOCKS THEY WERE CALIBRATED TOO.

@@Frank289100 well said

@@a.j.orichard6137 MY LIFE'S TRADE IS A PLUMBER HERE IN NEW YORK CITY. ALBERT EINSTIEN ONCE SAID: "IF I HAVE TO DO MY LIFE ALL OVER AGAIN I WOULD HAVE BECAME A PLUMBER".

@@a.j.orichard6137 THE PROFESSORS IN COLLEGES THEMSELVES DO NOT THOROUGHLY UNDERSTAND WHAT E=MC2 MEANS. WHAT I EXPLAINED HERE MOST OF THEM TO ALL OF THEM HAVE NO KNOWLEDGE OF. THIS EXPLANATION GOES DEEP INTO THE MIND OF HOW ALBERT EINSTIEN THOUGHT.

Yet 188 managed to not like it.

Abhijat Verma Who cares. They're gringos.

+DeuceGenius People who don't speak English don't come to an English language website, make an account and then watch English speaking videos.

shouldn't be watching a relativity lecture if you do not know how to spell!

Nah dude it was on the left, why ¯\_(ツ)_/¯

Exactly!!! Especially Calculus...

17:40 I’m confused I think, what happens if you throw a ball up while your free falling in a gravitational field. Won’t the ball go up and gradually stop a certain distance from you. Where as if you not in a gravitational field and floating in space the ball will continue to go up infinitely. Any clarification would be great, thanks.

did you get in