Time dilation | Special relativity | Physics | Khan Academy

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  • Опубліковано 15 гру 2024

КОМЕНТАРІ • 29

  • @husna668
    @husna668 5 років тому +13

    please do more on time dilation, length contraction, etc ;__;

  • @karangupta4978
    @karangupta4978 2 роки тому +3

    Just binged the whole playlist... Had a lot of new ideas. Thanks sal!! Now I'll head over to the website for more videos. Request to update this playlist even more.

  • @ipergiovanni
    @ipergiovanni Рік тому +1

    According to Einstein you can jump into the past and save the life of the already dead
    Using a metric rule and the light, according to Einstein, with respect to the station, a time dilated by range, or slowed by range, flows on the train.
    When the train enters the station. and before the same train abandons him, the bartender of the station bar shoots a station cleaner and kills him.
    At this point the station master, near the passing train, jumps on the train and consequently finds himself in the past (I repeat, according to Einstein, because a slowed-down time is flowing on the train).
    From the past in which he finds himself, the station master shoots an instant before the bartender does, killing the latter and thus absurdly saving the life of the cleaner who is actually already dead for a while.
    Giovanni from Italy.

  • @tejasraysad933
    @tejasraysad933 2 роки тому +2

    I really thank Khan academy for providing such a quality of education of difficult topics in an easy to understand manner, I have never seen my problems getting solved so easily with a single playlist.. ❤️👍👍
    Congratulations 🎉

  • @physqubit2118
    @physqubit2118 8 років тому +4

    Hey Salman, can you please make videos on 4-dimensional special relativity? I'm really grateful for your videos, but they only cover two dimensions. Could you please please please show how it works in 4 dimensions? I'm requesting you because you teach stuff better than any other online site.

  • @chadanthonysellers
    @chadanthonysellers 8 років тому +4

    Killer videos, you are giving to the world greatly. Thank you for sharing

  • @devsaranga
    @devsaranga 8 років тому +2

    Will there be lessons on General Relativity in the future?

  • @prasadkulangara1002
    @prasadkulangara1002 5 років тому

    Time refered to a clock dial and hence stating it will dialate is wrong. Clock dial is simple representation. If time is treated as interval between two claps by a time clapper (human). Number of claps he will perform will be same irrespective whether he is moving or stationary.

  • @thetheoreticalphysicist2407
    @thetheoreticalphysicist2407 3 роки тому

    I am starting this series by the last video...😀

  • @DekuStickGamer
    @DekuStickGamer 8 років тому +17

    Wow...I understood absolutely nothing. Why do I even try?

    • @new-knowledge8040
      @new-knowledge8040 8 років тому +1

      +DekuStickGamer -- Try this one. Google "KSP SPECIAL RELATIVITY - UA-cam".
      This is composed of 9 mini UA-cam videos which add up to 1 hour 37 minutes.
      It is not the same as the usual look at relativity.

    • @DekuStickGamer
      @DekuStickGamer 8 років тому

      ***** I'll give it a try.thanks!

    • @Rocky-me5cw
      @Rocky-me5cw 5 років тому

      start from minkowski diagram.

    • @Rocky-me5cw
      @Rocky-me5cw 5 років тому +7

      It's been 3 years?You are probably teaching relativity.Never mind.

    • @demonindenim
      @demonindenim 3 роки тому

      @@Rocky-me5cw LOL

  • @sirgrinder
    @sirgrinder 6 років тому +5

    What

  • @Wargamer008
    @Wargamer008 8 років тому

    Question for the C: frame (middle diagram) . Since A s moving to the left, and Vb > Vc , then wouldn't the ct'' be pointing into the positive x' direction too? This is the only thing throwing me off thus far.

    • @thedhirajkushwaha
      @thedhirajkushwaha 3 роки тому

      I thought to answer this question...
      But, there is an issue
      how can ct'' point into x'?

  • @BeYourself24x7
    @BeYourself24x7 8 років тому

    thank you

  • @kingkirby8960
    @kingkirby8960 8 років тому

    Cool video!

  • @michaelwang3099
    @michaelwang3099 7 років тому +8

    OMG, what doesn't Sal know!!!!!

    • @PK-mj2rc
      @PK-mj2rc 7 років тому +4

      he is compliment of Jon Snow

  • @ГришаВнемликов
    @ГришаВнемликов 3 роки тому +1

    In ur 1st video u using twice system, but it is uncorrectly, i think that is fake

  • @nadavdanieli
    @nadavdanieli 6 років тому

    Does anyone still think the twin that travel is younger than his twin on Earth?

  • @mario712145
    @mario712145 8 років тому +2

    So is this kind of like rocket science?

    • @omniofficial
      @omniofficial 8 років тому +1

      +Hisoka Einstein's theory of relativity

    • @The112Windows
      @The112Windows 8 років тому

      Kinda.

    • @boyisun
      @boyisun 8 років тому

      Rocket is really involved in this science 😂