Brian Greene Explains That Whole General Relativity Thing

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  • čas přidán 11. 11. 2015
  • Theoretical Physicist Brian Greene explains how the universe works using a water bottle and disco music.
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Komentáře • 3,6K

  • @stiimuli
    @stiimuli Před 8 lety +7062

    I love that Stephen seems genuinely interested in promoting science and intelligence.

    • @AngeliaChanel
      @AngeliaChanel Před 8 lety +110

      +stiimuli I was thinking the same thing! He doesn't sit and only talk to useless 'celebrities' night after night after night....ugh!! I love this show :)

    • @Gessful
      @Gessful Před 8 lety +5

      +AngeliaChanel Good point!!!

    • @makdavian3567
      @makdavian3567 Před 8 lety +35

      +stiimuli Yeah! He even brought out a special wagon for scientists! He is *AWESOME!*

    • @goggletoggle1294
      @goggletoggle1294 Před 8 lety +2

      Wouldn't you?

    • @stiimuli
      @stiimuli Před 8 lety +18

      Goggle Toggle
      Unfortunately, many aren't. Including many tv hosts and youtubers.....and Texas government officials.

  • @shannonlyonsmurphy4617
    @shannonlyonsmurphy4617 Před 8 lety +8596

    Meanwhile Jimmy Fallon is spitting water on celebrities.

    • @facelessandnameless
      @facelessandnameless Před 8 lety +63

      right???? lol

    • @goggletoggle1294
      @goggletoggle1294 Před 8 lety +208

      Colbert holds himself to pretty high standards.

    • @ualrdyknowaitiz
      @ualrdyknowaitiz Před 8 lety +31

      +shannon lyons murphy and gets massive views....what a society we live in....i'm still hoping that those are all paid views and society hasn't just embraced idiocy

    • @OrigEntertainmentOfficial
      @OrigEntertainmentOfficial Před 8 lety +23

      +shannon lyons murphy To each his own. I love both guys and Jimmy Kimmel. We live in a great time for comedy. Lots of different flavors.

    • @84chevypickup
      @84chevypickup Před 8 lety +16

      +OrigMedia some taste like shit, so i dont consume them. like jimmys childish comedy...

  • @totallynotthefeds36
    @totallynotthefeds36 Před 3 lety +4183

    I'm glad Academics are getting more shine, so we can stop making stupid people famous.

    • @Ian-rj6fq
      @Ian-rj6fq Před 3 lety +63

      Agreed. Case in point the stupid host.

    • @eliehaddad4244
      @eliehaddad4244 Před 3 lety +11

      Well said brother

    • @maengun2091
      @maengun2091 Před 3 lety +46

      Stupid people? Intelligence is relative too.

    • @-lll-ll-llll-AVE
      @-lll-ll-llll-AVE Před 3 lety +70

      You can be stupid and highly entertaining, just as much as you can be highly intelligent and boring as heck..
      I think we can agree Late Night shows are best for highly entertaining people, and once in a while they happen to be intelligent too

    • @PoplarForest
      @PoplarForest Před 3 lety +3

      But muh sports beat yer sports!

  • @hugodesrosiers-plaisance3156
    @hugodesrosiers-plaisance3156 Před 4 lety +1434

    The mouthful basically means that everything always actually moves in a straight line - gravity doesn't **attract** anything, rather, it is able to warp that straight line into what we call a curve.

    • @chyeaOGKush
      @chyeaOGKush Před 4 lety +37

      it warps the line in a way that creates gravity in which turn does attract everything to the centre

    • @Anon-tj2zk
      @Anon-tj2zk Před 4 lety +33

      Hugo Desrosiers-Plaisance I would really REALLY appreciate if you could let me know some books that can help me understand a little more of how everything works.

    • @TotalDrganMania
      @TotalDrganMania Před 4 lety +30

      @@Anon-tj2zk Start with Neil Degrass Tysons astrophysics for dummies. That'll get you going. And just start googling questions to supplement your interest. Make sure that the sources you reference are reputable, but have fun. Science and math are fun!

    • @Anon-tj2zk
      @Anon-tj2zk Před 4 lety +4

      Jackie Johnson Thankyou so so much, I’m really grateful

    • @Anon-tj2zk
      @Anon-tj2zk Před 4 lety +4

      TotalDrganMania thankyou, I’ll definitely look into it. Really grateful :)

  • @dangleason9023
    @dangleason9023 Před 4 lety +2987

    Finally a phrase to tell the general public how little they actually understand.

    • @bryandylanweast8766
      @bryandylanweast8766 Před 4 lety +20

      Yeah i wish it wasn't A issue and we had a way to come together

    • @brandocv
      @brandocv Před 4 lety +92

      Humbleness is the first step to enlightenment.

    • @omarsabih
      @omarsabih Před 3 lety +74

      @Justen Wennerberg It's way more than a bunch of scientific names, whole fields of knowledge and whole bunch of theories and techniques were referenced to. I have a PhD in Electrical engineering, and I have only a very surface-level idea about these things. These are not easy stuff.

    • @jamiejohnson4246
      @jamiejohnson4246 Před 3 lety +9

      You think you know till the end 😆

    • @iridium8562
      @iridium8562 Před 3 lety +23

      @Justen Wennerberg for a physics major, your comment hurt my soul

  • @ClwydEnComu
    @ClwydEnComu Před 7 lety +1640

    Bloody love that Stephen puts science and non-cinematic arts right up there at the front of his show, brilliant host. Wish we had more emphasis on culture and knowledge in general media.

    • @rock-tk1qf
      @rock-tk1qf Před 4 lety

      Marry Him

    • @user-wt5dt4je8n
      @user-wt5dt4je8n Před 4 lety

      @@rock-tk1qf shut the hell up imbecile

    • @megametagrossard3342
      @megametagrossard3342 Před 4 lety

      @Stimulator7 well isn't America one of the most progressive , sanitary and educated place in the world ? .... In terms of corruptness I could name a few places worse than it ......

    • @davel7037
      @davel7037 Před 3 lety +1

      @@megametagrossard3342 America is no best anymore, scientific culture is actually better outside US

  • @cjpatz
    @cjpatz Před 4 lety +2458

    “Space time is a four dimensional Hausdorff Differential Manifold on which a metric tensor is imposed that solves the Einstein Field Equations, and that metric tensor gives rise to geodesics and objects that are not experiencing any other force move along the geodesics described by that metric!”
    Holy crap that was a mouthful!

    • @BURDYMAN777
      @BURDYMAN777 Před 4 lety +148

      Thank you kind sir. I was hoping someone would have it typed out so I know how to spell it lol

    • @cjpatz
      @cjpatz Před 4 lety +25

      Holt Burdette haha! No problem, I think another guy did it though too, but I didn’t notice it till I spelled the whole thing out. Wish I had known! Lol

    • @thegreath.sapiensapien6907
      @thegreath.sapiensapien6907 Před 4 lety +20

      ITS all about metrics there is nothing real. the universe is a hologram

    • @joashmathew7454
      @joashmathew7454 Před 4 lety +46

      Umm sir, we only talk English here.

    • @Nautilus1972
      @Nautilus1972 Před 4 lety +11

      @@thegreath.sapiensapien6907 Source?

  • @silverfox1754
    @silverfox1754 Před 3 lety +486

    That 30sec explanation took me 3 years and a degree in physics to understand 😂

    • @somefreshbread
      @somefreshbread Před 2 lety +16

      Only three!?

    • @damfadd
      @damfadd Před 2 lety +6

      see.... you tube!

    • @philipsarpong8301
      @philipsarpong8301 Před rokem

      You are a genius ... majority wont understand in a life time ... Guess what, there must be physics teacher that don't understand it. They only reproduce it for their students to figure it all out by themselves.

    • @sayedaayan3169
      @sayedaayan3169 Před rokem +10

      Ahh finally I have a life goal now. I wanna understand what he said

    • @davidmudry5622
      @davidmudry5622 Před rokem

      9/11 question...
      Do you know why a feather and a bowling ball dropped in a vacuum from the same height at the same time will reach the ground at the same time? The answer is because while in free fall they both weigh exactly the same, zero weight, and there is no force acting on them. So where did the weight and the force come from to destroy the twin towers when all of that weight was supported for 30 years? The NIST answer --> "Since the stories below the level of collapse initiation provided little resistance to the tremendous energy released by the *falling* building mass, the building section above came down **essentially in free fall**, as seen in videos"...But free fall means not **falling**, and it also means no weight, and no force. --> czcams.com/video/E43-CfukEgs/video.html

  • @QuantumBraced
    @QuantumBraced Před 8 lety +2063

    I like that he has scientists and inventors and leaders and other intellectual celebrities in. How cool an idea to honor Einstein and special relativity!

    • @OrigEntertainmentOfficial
      @OrigEntertainmentOfficial Před 8 lety +73

      +QuantumBraced I agree. Stephen leads by example. Celebrating smart people creates heros of them. Our society needs to honor intelligence more.

    • @tonyatthebeach
      @tonyatthebeach Před 8 lety +5

      +OrigMedia or it needs to ONLY honor intelligence and not useless 'celebrities'

    • @gia257
      @gia257 Před 8 lety +1

      +tonyatthebeach its society, intelligent people dont have to be social, while celebrities must, ofc there are people that are everything though :P

    • @tonyatthebeach
      @tonyatthebeach Před 8 lety +3

      +gia I'm everything! :P I just need to make sure everyone knows it??
      ps. good point

    • @Rugbystu14
      @Rugbystu14 Před 7 lety +1

      QuantumBraced it's good to have such honorable people since most of the time there's only bimbos around.

  • @astrog7361
    @astrog7361 Před 4 lety +4745

    Newton: I'll leave it to the consideration of the readers
    Einstein: Hold my moustache

  • @pablocastellanos8461
    @pablocastellanos8461 Před 3 lety +335

    "The ONLY rapper Eminem is too afraid to diss"

  • @danielsmith1202
    @danielsmith1202 Před 2 lety +78

    I love Brian Greene soo much. He’s so passionate and seems to love teaching, he’s like a kid with a new toy. We need more reverence of figures like him and not celebrities that contribute nothing to society as a whole.

    • @lucyravenclaw1790
      @lucyravenclaw1790 Před 2 dny

      He looks a bit like Einstein if Einstein didn't have mustache 😃

  • @NerdSyncProductions
    @NerdSyncProductions Před 8 lety +2807

    7:12 I need much more of this on tv!

  • @Chill2094
    @Chill2094 Před 8 lety +653

    I FUCKING LOVE that Stephen is sharing science knowledge with us !!!

    • @samspamable
      @samspamable Před 8 lety +16

      His name is right there, and still...

    • @PolishNomad95
      @PolishNomad95 Před 8 lety +2

      +Carl Rice He also has another documentary series called The Fabric of the Cosmos. I highly recommend it.

    • @imperialviking2817
      @imperialviking2817 Před 7 lety +2

      +Tr4cK17 Look up a show called Space TIme here on youtube.

    • @Microtherion
      @Microtherion Před 7 lety +6

      Yes, I'd recommend the (PBS) Space Time channel too. I've been watching it quite a bit lately, with the result that I actually just about understood what Brian Greene said at the end there. And I'm no Sheldon Cooper, so they're clearly very effective videos. :)

  • @brennbeez
    @brennbeez Před 4 lety +1308

    "it's up to you man, go nuts." Is that what the gods look like when they're creating universes?

    • @OriginalPuro
      @OriginalPuro Před 4 lety +55

      Hint, humans are gods and no one created the universe, it happened.

    • @viveklakshman2897
      @viveklakshman2897 Před 4 lety +19

      Puro, I sometime have this similar thought that God could be the evolved and transcended collective human consciousness in future and we are just it experiencing it's past through the flow of what we call time! But the trouble is, as always, what came first! And the cycle goes on!

    • @crocopix
      @crocopix Před 4 lety +9

      No sir, God is flat earther.. he created the earth with four corners.

    • @eleethtahgra7182
      @eleethtahgra7182 Před 4 lety +1

      Well, the gods were bugs bunny n friends from loony toons, so....yeah.

    • @ishworshrestha3559
      @ishworshrestha3559 Před 4 lety

      Ok

  • @ashwynn4177
    @ashwynn4177 Před 3 lety +36

    Wow that stopping of water flow of dropped bottle is the coolest thing I've seen. Just that one short demonstration opens up a whole vista of understanding!!

    • @davidmudry5622
      @davidmudry5622 Před rokem

      Question, is saying "dynamic effects" in this NIST document the same as saying "dynamic weight"? My understanding is that objects falling "essentially in free fall" would have very little weight of any kind with respect to their "static weight", or any falling objects that do not "slow" as they fall, can only have a maximum weight of a "static weight"? Am I right or wrong?
      NIST WTC Towers FAQ 31...?
      Quote word for word...
      "Since the stories below the level of collapse initiation provided little resistance to the tremendous energy released by the falling building mass, the building section above came down *essentially in free fall*, as seen in videos. As the stories below sequentially failed, the falling mass increased, further increasing the demand on the floors below, which were unable to arrest the moving mass."
      "In other words, the momentum falling on the supporting structure below, which was designed to support only the static weight of the floors above and not any dynamic effects due to the downward momentum, so greatly exceeded the strength capacity of the structure below that the structure below was unable to stop or even to slow the falling mass. The downward momentum grew larger directly proportional to the increasing falling mass."
      Now can you envision a falling bottle that falls faster and faster and at the same time the water squirts out harder and harder? This is what the USA government is telling you happened on 9/11.

    • @MeltedToast84
      @MeltedToast84 Před rokem

      You've never seen that before?

    • @ashwynn4177
      @ashwynn4177 Před rokem +1

      @@MeltedToast84 No

  • @Pfromm007
    @Pfromm007 Před 8 lety +1865

    Albert Einstein says that space-time is a four dimensional Hausdorff differential manifold on which a metric tensor is imposed that solves the Einstein field equations, and that metric tensor gives rise to geodesics, and objects that are not experiencing any other force will move along the geodesics described by that metric! *throws punches*

    • @bluesrockfan36
      @bluesrockfan36 Před 8 lety +79

      +Arkadiem
      Hausdorff not housed :p

    • @1ucasvb
      @1ucasvb Před 8 lety +77

      +Arkadiem Also, tensor, not tenser.

    • @Pfromm007
      @Pfromm007 Před 8 lety +374

      +1ucasvb Thanks guys, sorry if my misspellings made you feel tenser.

    • @freerangeorganiccrystals7913
      @freerangeorganiccrystals7913 Před 8 lety +93

      +Arkadiem It's the most concise, non-dumbed down explanation of relativity that I've ever heard.

    • @alexanderreynolds9705
      @alexanderreynolds9705 Před 8 lety +5

      +Arkadiem no _or_ between Hausdorff and differential

  • @dizzy-117
    @dizzy-117 Před 8 lety +477

    I just love, when someone is hyped about something. I'm not that much into science myself, but if someone starts to tell me about something science-related and he just seems as happy as this guy, I'm really starting to get interested.

    • @dizzy-117
      @dizzy-117 Před 8 lety +10

      +Xeno Fractal sorry, not a native speaker...

    • @hellomynameisCECIL
      @hellomynameisCECIL Před 8 lety +3

      +DizzyDC its all good. Science is sick though.

    • @SilentscufflE
      @SilentscufflE Před 8 lety +18

      +Xeno Fractal Everyone knew what he meant. Talking about the commas rather than the content is just pedantic and insulting.

    • @vonbraunprimarch
      @vonbraunprimarch Před 8 lety +5

      +Patrick Foley edgy

    • @ighfee
      @ighfee Před rokem

      That's me every time my nephew asks me a science question.

  • @janasiaprice9278
    @janasiaprice9278 Před 4 lety +32

    i truly love how everyone is just 100% invested into this. makes me happy. 😁

  • @deeb3272
    @deeb3272 Před 4 lety +15

    Watched this a bunch of times and Brian Greene still amazes me. A very wise science communicator

  • @gurpreetsingh793
    @gurpreetsingh793 Před 7 lety +1010

    52 people loved this sooo much they turned their phone upside-down to like it again!

    • @samishi2811
      @samishi2811 Před 6 lety +3

      Gurpreet Singh Matharoo no they didn’t

    • @gerRule
      @gerRule Před 5 lety +36

      They’re called flat earthers

    • @dvk7277
      @dvk7277 Před 5 lety +7

      Gurpreet Singh Matharoo. Lol good one. But sadly reality is that these people are flat earthers and they need this dumbed down farther.... to say a pre-born.

    • @jonathanchow3401
      @jonathanchow3401 Před 5 lety +5

      Gurpreet Singh Matharoo I liked your comment so much I liked it twice

    • @wafulamasikaAbbottjesselove
      @wafulamasikaAbbottjesselove Před 5 lety +5

      IM STEALING YOUR JOKE

  • @duncanwallace7760
    @duncanwallace7760 Před 8 lety +202

    The end was fantastic. So good to not dumb things down!

  • @carnalea2424
    @carnalea2424 Před rokem +10

    I'm impressed by Colbert. Asking good, sensible questions.

    • @Cohdiboi
      @Cohdiboi Před rokem

      Don’t give him too much credit. Clearly those questions were provided to him.

    • @carnalea2424
      @carnalea2424 Před rokem

      @@Cohdiboi I've only recently come across him tbh (I live in England) so don't know much about him.

    • @Desert_guy
      @Desert_guy Před rokem

      He always has scientists and retains some knowledge, although a comedian, he still has excellent questions and some understanding which makes it all more entertaining. I love when the host has some actual interest in science and not just trying to poke fun at scientists.

    • @ighfee
      @ighfee Před rokem

      And he didn't belittle Greene either, was clearly interested in his explanations. Most people would put down an intelligent person simply because they don't understand him.

  • @seanp4644
    @seanp4644 Před 4 lety +178

    I'm actually really happy that Stephen asked that last question, now I have more Wikipedia pages to read xD

    • @del_1523
      @del_1523 Před 3 lety +2

      My first thought after I heard the answer

    • @tharengore7215
      @tharengore7215 Před 2 lety +1

      Yea I was like ok I need to look up what all that is and means. I like Colbert brings in science professors and even ask them not to dumb it down but challenge us to understand.

    • @TigDegner
      @TigDegner Před 2 lety

      My thought too, and my greatest hope is that he did that recognizing the world of resources at the everyman's disposal today. And what do you know, a few comments up someone's typed it up so you even know how to spell everything right.
      Now let us go, and learn and make merry!

    • @crimsonstrykr
      @crimsonstrykr Před 2 lety +1

      BTW one thing to note - the explanation using the rubber sheet is misleading and wrong in many ways. It seems to assume relativity is only about space being affected by mass and shows nothing about time. I am not gonna explain all that here but if you wanna know why check out Veritasium's video on relativity.

    • @HelloWorld-ev9sg
      @HelloWorld-ev9sg Před 2 lety

      @@crimsonstrykr I agree with you. It is not entirely wrong, there are just better ways to demonstrate the theory.

  • @daedalus_00
    @daedalus_00 Před 4 lety +71

    I'm really glad that Stephen asked for the technical explanation. It was truly beautiful jargon.

  • @johnnyregs2378
    @johnnyregs2378 Před 5 lety +191

    If anyone hasnt read Dr. Greene's book "The Elegant Universe", i cannot recommend it enough. He is able to explain the most radical nuances of quantum mechanics, string theory, theoretical physics and so on in the most beautiful, simple and thought provoking ways. Him, Michio, and the great Brian Cox are truly the stewards of the highest forms of sciences today.

    • @justayoutuber1906
      @justayoutuber1906 Před rokem +4

      Brian Cox on Joe Rogan's show was great

    • @artimp152
      @artimp152 Před rokem +2

      String Theory still does not function. It is a waste of time.
      Feinman lectures are better, more entertaining, and do not pretend to more knowledge than we have - but do support quantum theory whose calculations work.

    • @bobjones5869
      @bobjones5869 Před rokem +6

      @@artimp152 i’m going to bet that you just heard string theory was bad from a youtuber and are regurgitating their opinion and that you don’t have a degree or any experience with physics

    • @EHS611
      @EHS611 Před rokem +1

      I did read his book The Elegant Universe. I also watched his 11 hour lecture on General and Special Relativity. To his credit he takes complex ideas and make it understandable to a lay person, who is not good in Mathematics, like me.

    • @johnnyregs2378
      @johnnyregs2378 Před rokem

      @@EHS611 I also watched that lecture, I was amazed at how engaged I was throughout the whole thing. The understanding I had coming out was awesome. He's a true educator.

  • @frede1905
    @frede1905 Před 3 lety +66

    Brian Greene is really, truly amazing. During quarantine, he had a video series on CZcams called "Your daily equation", which meant that every day he posted a video where he explained some physics equation so that we all could understand. In this way, he would connect us all while we were at home. Every friday, he even had a live stream where we could ask him about anything regarding science. In this way, I was even able to ask him about a few things 😀

    • @skjameelakhtar
      @skjameelakhtar Před 2 lety +3

      Thank you for mentioning the series.....
      I really appreciate it buddy. ❤

    • @davidmudry5622
      @davidmudry5622 Před rokem

      But Brian Greene said the water is squirting out the holes because gravity is pulling down on the water. "Since the stories below the level of collapse initiation provided little resistance to the tremendous energy released by the *falling* building mass, the building section above came down **essentially in free fall**, as seen in videos"...But free fall means not **falling**, and it also means no weight, and no force. --> czcams.com/video/E43-CfukEgs/video.html

    • @ronharleypantaleon1824
      @ronharleypantaleon1824 Před 2 měsíci

      Wow! Thank you so much!

  • @CatCaretakerID
    @CatCaretakerID Před 7 měsíci +2

    I love Brian Greene - he explains these complex things in a way I can almost always understand. I thoroughly enjoyed his books.

  • @divxxx
    @divxxx Před 4 lety +490

    His book "The elegant universe" completely changed my life. When I finished it I thought "I was blind and now I see" lol

    • @HarinderSingh-dy7pg
      @HarinderSingh-dy7pg Před 3 lety +7

      Is it simple or u have to know physics or maths to read it ?

    • @si_monster7365
      @si_monster7365 Před 3 lety +32

      HarindeR SaharaN Some basic understanding is handy but you don’t have to. The book is specially made for the wider audience to understand without any deep mathematical insights.

    • @escueladesalsasantiagord354
      @escueladesalsasantiagord354 Před 3 lety +11

      @@HarinderSingh-dy7pg And you can stop in every point that you don't undestand and searh a and you will learn more !

    • @coolguymohak1
      @coolguymohak1 Před 3 lety +10

      That book changed my life as well, read it in 8th standard and immediately decided to pursue sciences in IIT

    • @AliKwj
      @AliKwj Před 3 lety +4

      The fabric of the cosmos also was brilliant for me, and all you need to understand it is a free imagination

  • @lesgame1671
    @lesgame1671 Před 5 lety +302

    People like this gentleman here are the real celebrities of the world!!😉

  • @notwhoyouthink2415
    @notwhoyouthink2415 Před 4 lety +316

    Teacher: the physics exam will be easy
    The exam: 7:13

    • @ZeHoSmusician
      @ZeHoSmusician Před 4 lety +4

      Exam change: you have to recite what Brian says between 7:13 and 7:32; you have one week to learn it! \m/ :)

    • @hemanthvarmas
      @hemanthvarmas Před 3 lety +1

      common late show team, You have to pin this comment.

  • @sanaljith727
    @sanaljith727 Před 3 lety +850

    When my mom walked in I immediately switched to porn cause it was easier to explain.

  • @devonmiller636
    @devonmiller636 Před 6 lety +454

    Brian Greene is the rock star of physics.

    • @IronMan-qi3yg
      @IronMan-qi3yg Před 6 lety +23

      Devon Miller nope that's Brian Cox

    • @davidhall7540
      @davidhall7540 Před 5 lety +1

      wow .

    • @TheJaker5
      @TheJaker5 Před 5 lety +4

      Devon Miller there’s another Brian of physics. His name is Brian Cox. He also has a great way of explaining this stuff to people who have difficulty comprehending it.

    • @jarintasnim2130
      @jarintasnim2130 Před 4 lety

      Yes he is

    • @Hahduyban
      @Hahduyban Před 4 lety +6

      And so is Brian May.

  • @bradleybindle6428
    @bradleybindle6428 Před 8 lety +196

    Wow, he really does have the best guests.

  • @mjremy2605
    @mjremy2605 Před 7 měsíci

    A good teacher is always understood by others. This example made the whole concept clear as a bell for me. I got it!!!
    Thank you Dr Greene, and Stephen! A very good visual demo for both topics. Excellent!

  • @alanramirez7123
    @alanramirez7123 Před 5 lety +20

    Brian Greene is leaving a great legacy of trying to encourage more awareness of science to the public. Great guy

  • @DoableSteve
    @DoableSteve Před 8 lety +110

    The falling water bottle was an awesome way to demonstrate the equivalence principle.
    Brian Greene mentions very quickly that the curvature in time as well as space is important and doesn't go into it more, but he means something like this: the rubber sheet represents spatial curvature and you can slice spacetime so you have many copies of the rubber sheet stacked together. Moving forward through time forces you to move upward through the stack, but the *true* time direction you experience gets pulled slightly inward by gravity, so your overall motion arises as the combination of both space AND time bending toward the sun.

    • @shcxatter2
      @shcxatter2 Před 5 lety +8

      Steven Kapturowski
      Holy shit, thank you for that comment!
      It made me think deeper into the problem, and I think I finally got it!
      So basically, it's like time is just another spacial dimension, in which we are moving with constant velocity(which we preceive as time passing by) at all times, and the curvature, which mass produces, extends into the future(which is basically just a direction if we consider time as a spacial dimension), and the fact that objects with mass get drawn into that curvature is due to that constant movement in time!

    • @Thunder_Dome45
      @Thunder_Dome45 Před 5 lety +4

      Space time is freaky.

    • @jmcsquared18
      @jmcsquared18 Před 5 lety +5

      It's even stronger than that. The overwhelming majority of the acceleration we experience towards the earth - and everything experiences towards everything else - comes from the curvature in time specifically, not of space. Spatial curvature contributes to more exotic effects like lensing and black hole dynamics.

    • @MrFlameRad
      @MrFlameRad Před 5 lety +3

      @@jmcsquared18 exactly I was just going to explain that. For the most part, gravity is just matter bending space so that relative to spacetime curvature, you're actually not moving through space at all but only through time when you and another object of mass accelerate towards one another. If we could think in four dimensions these concepts would be so easy and kindergarten level intuitive, but unfortunately we're stuck in our boring 3D 🙄

    • @jmcsquared18
      @jmcsquared18 Před 5 lety +1

      @@MrFlameRad Being stuck in three dimensions kinda sucks sometimes, but that's why it's fun to imagine :)

  • @jlmer616
    @jlmer616 Před 3 lety +4

    Please continue to have scientist on the show. Brian Green is a Star amongst nerd circles.

  • @makarandnidhalkar7139
    @makarandnidhalkar7139 Před 4 lety +1

    Very good thought to invite such wonderful brains to the show and spread the knowledge in enjoyable way. Great show. Thanks.

  • @shkotayd9749
    @shkotayd9749 Před 8 lety +66

    I should have known that bottle example would do what it did, but was that ever cool seeing it in action.
    That was awesome!
    He is REALLY GOOD at explaining stuff like this :D

  • @mariokarter13
    @mariokarter13 Před 8 lety +240

    From what I've heard about Einstein's personal life, there must have been stiff competition for the "happiest thought of his life."

    • @GoldenB101
      @GoldenB101 Před 8 lety +36

      +mariokarter13 yeah, Stiff competition

    • @mariokarter13
      @mariokarter13 Před 8 lety +41

      Miles Hayford He definitely worked hard to come to that conclusion.

    • @AperturePowered
      @AperturePowered Před 8 lety +25

      +mariokarter13 You guys should be penalized for those.

    • @abogotar
      @abogotar Před 8 lety +24

      +mariokarter13 It must've been hard, but he certainly rose to the occasion.

    • @mariokarter13
      @mariokarter13 Před 8 lety +20

      Evan Thomas I'm sure there's a loophole I could squeeze through.

  • @Mrwiseguy101690
    @Mrwiseguy101690 Před 4 lety +757

    The teacher's example: 4:28
    The homework: 5:30
    The exam: 7:14

  • @chriskindlesparger1163

    Brian, you did a great job explaining something so intricate such an elegant way. Hats off to you

  • @thereisnospace
    @thereisnospace Před 7 lety +98

    PBS Spacetime. Awesome channel, has a wonderful playlist on general and special relativity. GO NOW!!!

  • @DrummerRF
    @DrummerRF Před 7 lety +6

    FINALLY. I've been saying this for a while, I want smart people not to be cool by explaining this simple but by showing how incredibly difficult it is what they did and FINALLY someone gives the opportunity for people to take a peak in the mind of scientists and see how much work it is. I LOVE IT.

  • @wc447
    @wc447 Před 3 lety +2

    We need more of this in prime time and late broadcasts

  • @carlosmohedano
    @carlosmohedano Před 6 měsíci +1

    The passion he speaks with is so contagious 🙂

  • @christinacho4370
    @christinacho4370 Před 8 lety +4

    If only every teacher and professor of science was this exciting and passionate!

  • @erhaboriE
    @erhaboriE Před 5 lety +8

    I love Stephen for always giving so much time to science

  • @piratessalyx7871
    @piratessalyx7871 Před 10 měsíci

    Excellent job by you Brian! Keep teaching us, we need it!

  • @jc.maccount5945
    @jc.maccount5945 Před 4 lety +4

    Oh i love it, this is remarkable promoting science to the people

  • @mengistumayardit1805
    @mengistumayardit1805 Před 5 lety +5

    The best demonstration I've ever watched on the General relativity theory. Thank you!

  • @Tommyhillpicker
    @Tommyhillpicker Před 8 lety +74

    Hey if you guys want to understand more about how special and general relativity works, how humans' thoughts on the matter have evolved with the work of Einstein and other key scientists, or if you just need more examples to try to really wrap your head around a lot of the concepts, check out the Space, Time and Einstein course at www.worldscienceu.com. Brian Greene does a really good job, and the courses do a great job at making these mind blowing things relatively easy to understand.

    • @MrPutamaia
      @MrPutamaia Před 6 lety +2

      Tommyhillpicker how about you go and fuck yourself!
      I tried accessing your shitty adress and all i found is some crap for register for the courses and shit like that.

    • @feynstein1004
      @feynstein1004 Před 4 lety

      @Den Ax Dude, Well, all you have to do is register for a course. But it's completely free. And the series on special relativity is the best I've ever seen.

  • @ShubhamShubhra
    @ShubhamShubhra Před 2 lety +2

    I really love Stephen for actually asking Dr Greene to say that at the end. Brilliant stuff.

  • @pradhyudh
    @pradhyudh Před 4 lety +2

    He is the greatest science explainer i seen

  • @Kael7777
    @Kael7777 Před 5 lety +3

    Brian, you are a superstar scientist. I really appreciate how you explain and make modern physics concepts seem so easy to follow. Thank you.

  • @doraaaa0613
    @doraaaa0613 Před 8 lety +8

    I love science so much and I'm so glad you're doing this, Stephen! MOOOORE (please)!

  • @appex77
    @appex77 Před 3 lety +3

    I'm so glad I clicked on this. That experiment was epic

  • @kman8749
    @kman8749 Před 2 lety +2

    I love science, just wish I understood it perfectly. So thankful for guys like Brian Greene, Michio Kaku, Tyson, etc. for helping us to understand these concepts.

    • @davidmudry5622
      @davidmudry5622 Před rokem

      But Brian Greene said the water is squirting out the holes because gravity is pulling down on the water. "Since the stories below the level of collapse initiation provided little resistance to the tremendous energy released by the falling building mass, the building section above came down **essentially in free fall**, as seen in videos"...But free fall means not **falling**, and it also means no weight, and no force. --> czcams.com/video/E43-CfukEgs/video.html

  • @heathled
    @heathled Před 4 lety +188

    Einstein would been like 'yeah!!! Give it to them, son🤙'

  • @DasnarkyRemarky
    @DasnarkyRemarky Před 8 lety +12

    The advantage of having a smart host is that a lot of smart people get invited and get asked a lot of smart questions. That demonstration would help many laypeople get an understanding of how exactly gravity works.

  • @nannerz1994
    @nannerz1994 Před 11 měsíci

    Im so glad when he has guests you wouldn't t expect!

  • @gonolz
    @gonolz Před 7 měsíci

    this was truly an illuminating demonstration!!

  • @simonfetwi
    @simonfetwi Před 5 lety +3

    Love it when they bring science to talk shows , very useful and intriguing

  • @rafazeppelin
    @rafazeppelin Před 8 lety +42

    Great guest.

  • @neerajsivastava1630
    @neerajsivastava1630 Před 3 lety +2

    Seriously we need this types of teachers in india who focuses on imagination and visualisation

  • @wonder2454
    @wonder2454 Před 3 lety

    What a wonderful demonstration and vivid explanation by Brain Greene.

  • @jithunniks
    @jithunniks Před 4 lety +18

    7:12 Woah, that was a badass explanation

  • @naota3k
    @naota3k Před 6 lety +100

    "So Albert Einstein says that space-time is a 4-dimensional hausdorff differential manifold, on which a metric tensor is imposed that solves the Einstein field equations, and that metric tensor gives rise to geodesics, and objects that are not experiencing any other force will move along the geodesics described by that metric."
    In case you wanted to look anything up. ;)

    • @tofu-munchingCoalition.ofChaos
      @tofu-munchingCoalition.ofChaos Před 3 lety

      @@guptadagger896 The "line with a double point" (two copies of the real number lines identified except at the origin) is a differentiable manifold but not Hausdorff.

  • @stuartwayne4978
    @stuartwayne4978 Před 4 lety +1

    I love Colbert's segments in science on his show. It's always very interesting.

  • @cheekiblin690
    @cheekiblin690 Před rokem

    Brian's water bottle example helped me understand the equivalence principle a lot easier. That less than 30-second explanation at the end made my head explode!

  • @Tyrant604
    @Tyrant604 Před 4 lety +36

    7:13 “that’s the good stuff right there” 🤤

  • @sachin3446.
    @sachin3446. Před 5 lety +277

    Einstein after reading newton books on gravity be like "hold my beer"

    • @spacewitchvulcan
      @spacewitchvulcan Před 4 lety +8

      *papers

    • @-_Nuke_-
      @-_Nuke_- Před 4 lety +7

      More like "Halte mein Bier" as he was German XD

    • @ianrussell1095
      @ianrussell1095 Před 4 lety +4

      *beer slips from hands and falls to ground without spilling until it crashes in to floor*
      Einstein: This gives me an idea....

    • @muhammadwaqar3406
      @muhammadwaqar3406 Před 4 lety

      Or "hold my photons"

    • @jarredt2655
      @jarredt2655 Před 4 lety

      He didn't drink so....idk

  • @PepArtProductions
    @PepArtProductions Před 2 lety

    A great introduction to General Relativity can be found here: czcams.com/video/z1o32hKx5hI/video.html

  • @MrGriff305
    @MrGriff305 Před rokem +1

    This whole segment was awesome

  • @AndroGlen
    @AndroGlen Před 8 lety +3

    The world needs more show like this...

  • @randyjoble4607
    @randyjoble4607 Před 7 lety +44

    stephens a hell of a host

  • @LinuxLuddite
    @LinuxLuddite Před 4 lety +1

    Brian Greene is one of the most enimated scientists of our generation. He totally enthralls the audience with his passionate speeches

  • @serPiza
    @serPiza Před 3 lety +1

    This is beautiful, how pedagogy has evolved in different ways.

  • @bijoythewimp2854
    @bijoythewimp2854 Před 4 lety +41

    "Stand back Issac, Alby's here"- that was so 😆😆😆😂😂😂😂😂😂

  • @armaniac661
    @armaniac661 Před 8 lety +4

    Brian Greene is awesome! I love his documentary on String Theory!

  • @_zacrome_
    @_zacrome_ Před 4 lety

    I love these people who explains the theories in a more colorful way.

  • @eleethtahgra7182
    @eleethtahgra7182 Před 4 lety +6

    We need more of this, so that the general public could be more scientifically litterate.

  • @alexyan7245
    @alexyan7245 Před 4 lety +77

    7:12
    That's a moment cap says to tony stark: speak english.

    • @toasternfriends3329
      @toasternfriends3329 Před 4 lety +10

      Yup, except of course that Tony Stark was just making shit up and Greene isn't!

    • @Happy-xi9hl
      @Happy-xi9hl Před 3 lety

      Wasn't he speaking in english already?

  • @kevokoma
    @kevokoma Před 8 lety +45

    can anyone tell me the episodes where he interviews or has guests that aren't celebrities(basically people who will waste my time)?
    This was informative and I'd like to see more.

    • @gnrld
      @gnrld Před 8 lety +13

      You'd be surprised as to what kind of insights some of the celebrities actually bring to the table. They're not all just eye candy and gossip.

    • @Jakecmuir
      @Jakecmuir Před 8 lety +4

      +kevokoma Yeah most celebrities are celebrities for a reason especially actors who have honed their craft to a phenomenal and mind bending level.

    • @jimy5752
      @jimy5752 Před 8 lety

      +kevokoma You should watch the one with Pewdiepie. It will change your life. His best guest so far.

    • @pierzing.glint1sh76
      @pierzing.glint1sh76 Před 8 lety

      +kevokoma you dont want your time wasted, dont watch a comedy show you plonker

    • @spderweb
      @spderweb Před 8 lety +1

      +kevokoma Pretty much every episode, he does the Daily Show style routine, has a celebrity, and then has a political person, or science person on. it's a mix. He basically turned the late show into The Daily Show.

  • @SkullKnight1
    @SkullKnight1 Před 2 lety

    i like how he is teaching this with such joy

  • @abhinovenagarajan.s7237

    I watched this video when I was in high school or in the first year of my undergrad. Today, CZcams recommended me this video again, and now I can understand what Brian Greene's last sentence means. I'm a second year graduate student, and I feel good.

  • @ridethegradient
    @ridethegradient Před 8 lety +5

    "let me just lean into my ignorance of what your saying to me"-- We should all be so bold.

  • @tristantipton3641
    @tristantipton3641 Před 6 lety +3

    Wow, to think that 4 years ago I would have had no idea what Brian Greene was saying when he was speaking about differential geometry and general relativity. I guess I can say I’m fairly proud of myself for having come this far in my education.

  • @pillettadoinswartsh4974

    And if you want to actually understand it, go here: czcams.com/video/tzQC3uYL67U/video.html

  • @adharshraghavan2893
    @adharshraghavan2893 Před rokem

    First time I saw the water bottle expt I was in tears. It's so beautiful. So elegant. And so captivating.

  • @mbyard356
    @mbyard356 Před 4 lety +69

    Thank you, Stephen, for promoting intelligent education. 🤓

  • @jacobesplin9301
    @jacobesplin9301 Před 5 lety +20

    Newton: I leave it to the consideration of the reader.
    Einstein: hold my beer...

    • @ws-zo3kp
      @ws-zo3kp Před 4 lety +1

      Einstein: hold my apples

  • @junjalapeno7773
    @junjalapeno7773 Před 3 lety

    Love that Colbert welcomes physicists as guests.. their materials are worth more than a lot of celebrity guests

  • @eugenio1203
    @eugenio1203 Před 3 lety +1

    Thanks Stephen Colbert!!! For stoking curiosity on science on the general public!

  • @pikkuadi
    @pikkuadi Před 7 lety +21

    He grew... grew, grew, and grew
    grew up to be.. grew up to be
    A badass scientist called Brian

  • @tortolexie3891
    @tortolexie3891 Před 2 lety +3

    Brian Greene is now one of my favorite persons to exist ever.

  • @stardomee
    @stardomee Před 2 lety +1

    amazing chemistry between the presenter and the professor, boy I love science and Einstein scores so high in my book!

  • @creacher2620
    @creacher2620 Před 4 lety +6

    Holy shit, I’ve come along so far in my physics career I finally understand what brain said. I saw this when I was an undergrad and didn’t understand a word of what he said in the end.

  • @praneshpandey1531
    @praneshpandey1531 Před 4 lety +6

    I really wish if my science teacher would have been like Brian greene