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Course of General Relativity Lecture - 1

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  • čas přidán 14. 09. 2014
  • These are unedited videos of a course on General Relativity and Cosmology given by Prof.T.Padmanabhan (IUCAA, Pune) at IISER, Pune during Jan-April 2009. If you use them or if you have comments, it would be appreciated if you send a mail to paddy@iucaa.ernet.in.

Komentáře • 97

  • @RohanRajadhyaksha
    @RohanRajadhyaksha Před 2 lety +70

    Just heard of Prof. Padmanabhan's passing away. Thank you sir for all the education and for making seemingly complex concepts accessible without compromising on the rigor. You will be missed. 🙏

    • @Imran52Feb
      @Imran52Feb Před 2 lety

      Very sorry to learn about his demise. RIP

    • @vidyutawasthi7814
      @vidyutawasthi7814 Před 2 lety

      I am also feeling sad over his untimely passing. May His soul be granted peace. Came across His lectures today only.

  • @abhinovenagarajan.s7237
    @abhinovenagarajan.s7237 Před 3 lety +30

    This lecture reviews Special Relativity, introduces the 4 vector formalism, time dilation as a consequence of relative motion, and derives the Lorentz transformation

  • @ramsahadeo9487
    @ramsahadeo9487 Před 3 lety +16

    One of the best intro by a teacher. The hallmark of excellence and being an angel to students

  • @Jonathan-xe4ec
    @Jonathan-xe4ec Před 8 lety +48

    Push to 7:20 to skip all the homework and assignment stuff.

  • @DrWizardMother
    @DrWizardMother Před 3 lety +15

    I've taken relativity (SR and GR) at multiple schools. This guy is the best I've seen...demeanor AND clarity.

    • @sciencelover4936
      @sciencelover4936 Před 3 lety

      Did you work out the steps of Lorentz transformation as mentioned here?

  • @rjaindia
    @rjaindia Před 3 lety +6

    Great professor! Humble lucid and clear, with a sweet soothing voice. 🙏

  • @albertomezzatesta1259
    @albertomezzatesta1259 Před měsícem

    An extraordinary clarity of exposition. And fully ambidextrous. Never seen anything like it! Magnificent teacher, indeed.

  • @dhruvthakkar7597
    @dhruvthakkar7597 Před 2 lety +7

    We are really going to miss you sir!! RIP!

  • @chinmaygandevikar5773
    @chinmaygandevikar5773 Před 2 lety +5

    Come back soon! A lot of students want to learn more from you!!!

  • @abe3775
    @abe3775 Před 8 lety +12

    one of the Biggest contributions of Einstein to physics: Einstein summation convention!!!

    • @rgudduu
      @rgudduu Před 3 měsíci

      What's its advantage?

  • @ksbalaji1287
    @ksbalaji1287 Před rokem +3

    India's best physicist. You are missed.

  • @MrSushant220
    @MrSushant220 Před 4 lety +6

    marvellous sir, u were always my childhood inspiration......

  • @avikhagol
    @avikhagol Před 7 lety +9

    I actually went back and confirmed that he switched his hand on the board. :P Thanks sir! Nice lecture. (y)

  • @sahilkaushik2208
    @sahilkaushik2208 Před 2 lety +3

    Great lecture and help me a lot in research topic of dark matter and dark energy

  • @NikkiTrudelle
    @NikkiTrudelle Před 5 měsíci

    I like how we all have this moment immortalized of someone entering class late, Casually. He wasn’t busting into the door running to his seat. He was relatively on time tho.

  • @jishnun4537
    @jishnun4537 Před 2 lety +3

    lecture was so clear and beautiful. Thank you sir. RIP

  • @lucasdarianschwendlervieir3714

    I really like this derivation of the Lorentz transformations.

  • @pcalculas
    @pcalculas Před 6 lety +4

    Crazy way of doing this but valid way of doing this

  • @TANMOY-fs9jn
    @TANMOY-fs9jn Před 2 lety +1

    Great lecture Sir, we the physics learners will always miss u.RIP SIR

  • @sudippatra1289
    @sudippatra1289 Před 7 lety +3

    really very clean ..great to listen

  • @justcrank9088
    @justcrank9088 Před 8 lety +3

    This is like going to the bats wedding....if you learn one way from a book or a proffessor you have one formalism and some symbols...then the other books and other proffessors have their own formalism and their own symbols..

  • @brilliabenny8222
    @brilliabenny8222 Před 2 lety +3

    Can’t believe he is no more 💔

  • @indikakumara3671
    @indikakumara3671 Před 7 lety +3

    Greatest teacher i ever seen...

    • @hetbariya9380
      @hetbariya9380 Před 4 lety

      Have you ever heard the name H C Verma

    • @hetbariya9380
      @hetbariya9380 Před 4 lety

      Best Physics Teacher Ever

    • @devarya8963
      @devarya8963 Před 4 lety +4

      @@hetbariya9380 depends actually. HC Verma is good for high school level stuff, not so much for complicated stuff like GR. I have met HC personally and attended Tanu's lectures so I can say.

    • @rahuldhungel
      @rahuldhungel Před 2 lety

      @@hetbariya9380 any Indian guy who's ever been here or found this lecture series would in no way not know HC Verma.

    • @physicsdemonstrations2426
      @physicsdemonstrations2426 Před rokem

      @@hetbariya9380 🤣

  • @franklineberger1958
    @franklineberger1958 Před 8 lety +18

    He seems to be fully ambidextrous.

  • @Bertie.athenaeum
    @Bertie.athenaeum Před 2 lety +2

    He passed away this year. R.I.P. sir.

  • @Yashodhan1917
    @Yashodhan1917 Před rokem +2

    How come no one noticed that the man is ambidextrous! He's writing and drawing with both hands.

  • @srivishnurendla4894
    @srivishnurendla4894 Před 7 lety +6

    Love him.

  • @parineetibairaggya316
    @parineetibairaggya316 Před rokem +1

    Finally I come to know "why ds"

  • @adityadas.mr.cosmos357
    @adityadas.mr.cosmos357 Před 5 lety +2

    Very nice one sir

  • @mohammedanwarsha3798
    @mohammedanwarsha3798 Před 2 lety +7

    ഈ sir മലയാളി ആയിരുന്നോ... 😔

  • @pcalculas
    @pcalculas Před 5 lety +4

    Love you Sir

  • @physics1789
    @physics1789 Před 2 lety +1

    @ 1:19:57, prof emphasized on using differentials instead of coordinates. I could not understand the motivation. Can someone explain?

  • @srivishnurendla4894
    @srivishnurendla4894 Před 7 lety +3

    I like this man.

  • @physicspoint3356
    @physicspoint3356 Před 2 lety +1

    May God bless you sir

  • @kaushikquanta8172
    @kaushikquanta8172 Před 6 lety +2

    do invariant and co variant convey the same meaning at all context

  • @zeta-man
    @zeta-man Před 8 lety +1

    so where is the discussion about his problem with the Weinberg's text notations

  • @g.o.a.t4674
    @g.o.a.t4674 Před 5 měsíci

    This is very advanced bro 😅

  • @pareshkumarsahoo3421
    @pareshkumarsahoo3421 Před 2 lety +3

    Rip🙏

  • @thiruvalluvar
    @thiruvalluvar Před 2 lety

    Om Shanti Professor. 🙏

  • @tosa5026
    @tosa5026 Před 7 lety +3

    subtiles plzzz

  • @rgudduu
    @rgudduu Před 3 měsíci

    16:30 Two postulates

    • @rgudduu
      @rgudduu Před 3 měsíci

      39:30 Einstein summation convention

  • @keshavchaturvedi4015
    @keshavchaturvedi4015 Před 5 lety +5

    He writes with both hands😶😐

    • @harishrathee5863
      @harishrathee5863 Před 3 lety +4

      Ambidextrous.. almost all genius's traits from Leonardo Da Vinci to Nikola Tesla

    • @keshavchaturvedi4015
      @keshavchaturvedi4015 Před 3 lety +2

      @@harishrathee5863 to dr. Viru Sahastrabuddhe

  • @jeff.P
    @jeff.P Před 5 lety +2

    paddy, mimoso

  • @pradeepmachara4724
    @pradeepmachara4724 Před 2 lety +1

    🙏🙏🙏

  • @SoumitraKhirpai
    @SoumitraKhirpai Před 9 lety +3

    great....

  • @shobhitkhajuria7464
    @shobhitkhajuria7464 Před 4 lety +2

    Guys, anyone has the link to the exercises and problem sets?

  • @spaghettimeatballswow
    @spaghettimeatballswow Před 8 lety +6

    landau and lifshitz in the first of the suggested readings? this professor is insane.

    • @anujmishra9077
      @anujmishra9077 Před 8 lety +8

      He can even write with both the hands...

    • @MuhammedShafeeque1
      @MuhammedShafeeque1 Před 6 lety +4

      its the best book

    • @agffga8757
      @agffga8757 Před 4 lety +2

      You've probably never read Landau 2. It has an obsolete notation, but when I found myself struggling with concepts in GR (usually frome reading Weinberg which was my first book) I always found great clarity in their expositions, more than any other textbook.

  • @sciencelover4936
    @sciencelover4936 Před 3 lety +3

    @1:06:51
    Paddy says we can calculate the functional forms f0 and f1 after substituting x = gamma * v * tau and t = gamma * tau. But how? Can someone help me out? I tried but somewhere I am getting wrong.

    • @IUCAALibrary
      @IUCAALibrary  Před 3 lety +1

      You can contact Professor Padmanabhan on his email id is paddy@iucaa.in

    • @saveshgharat4218
      @saveshgharat4218 Před 3 lety

      Did you get it's derivation?? Even I got something different
      If yes can you please mail me on sarveshgharat19@gmail.com

    • @advntr_to1065
      @advntr_to1065 Před 2 lety +2

      Yes I did. Its quite easy.

    • @sciencelover4936
      @sciencelover4936 Před 2 lety +1

      @@advntr_to1065 Please share.

    • @sciencelover4936
      @sciencelover4936 Před 2 lety +3

      @@IUCAALibrary Now that's not possible anymore :-(

  • @abhishekms1059
    @abhishekms1059 Před 5 lety

    Supeb😍

  • @goldenpheasant5973
    @goldenpheasant5973 Před 6 lety +1

    some improvement is required

  • @Sumu97
    @Sumu97 Před 6 lety +3

    Was this course being attended by postgraduate students?

  • @prajithprakash4557
    @prajithprakash4557 Před 2 lety

    👍👍👍

  • @AlexBlade27
    @AlexBlade27 Před 10 měsíci

    18:53 Timestamp

  • @lifeofkiran6285
    @lifeofkiran6285 Před 7 lety +2

    Step 1 tell how marking system works
    2 refer a couple of German authors
    3 undertake an arbitrary coordinate
    Do math transfrmation
    Do math write laws of physics
    Realize it doesn't look like astrophysics go back

    • @ashokdebbarma8287
      @ashokdebbarma8287 Před rokem

      😂😂 are you dumb , tryin to be genius and showing your rizzologist to others , lol he is the greatest scientist of Indian history

  • @firdausjanoos1367
    @firdausjanoos1367 Před 8 lety +3

    the fundamental flaw in this lecture is that he has assumed without proof that ds is invariant. If you assume that special relativity becomes easy and straightforward. The interesting part is showing why it is invariant ...

    • @anujmishra9077
      @anujmishra9077 Před 7 lety +7

      I think you haven't seen the lectures properly.. He proved the invariance of spacetime interval using the arguments given in classical theory of fields by Landau Lifshitz

  • @rgudduu
    @rgudduu Před 3 měsíci

    His teaching is lacking. Makes things unnecessarily difficult by skipping steps. Writing them out would make it a methodical and straightforward follow.