String theory - Brian Greene

  • Published on: 09 August 2013
  • Physicist Brian Greene explains superstring theory, the idea that minuscule strands of energy vibrating in 11 dimensions create every particle and force in the universe.

    View full lesson: http://ed.ted.com/lessons/brian-greene-on-string-theory

    Talk by Brian Greene.
  • Runtime : 19:10
  • \Brian Greene\ \string theory\ \superstring TED TED-Ed \TED Ed\ TEDEducation physics dimensions Einstein string theory

COMMENTS: 40

  • one above all
    one above all   20 hours ago

    It's been 8 years, I will wait until this thing becomes real, maybe 8 years later

  • Nick B
    Nick B   3 days ago

    Would not the Cern experiment be fiddling with one of the twenty dials?

  • exocanna
    exocanna   5 days ago

    The graphic at 3:00 is still very 3 dimensional, I feel like if we thought of spacetime like water, and our planet was like an ice cube dropped in it that water, gravity would be similar to the pressure from the water being displaced back against us. If there was a way to visualize that with a graphic, I feel like it would lead to a better understanding of the mechanic of how dimensions fold, and possibly the range of size of the landscapes of these dimensions.Possible analogy: let's say we look in a microscope with 10,000x zoom, and we discover a tiny civilization of people with their own microscopes. What do they see when they zoom in 10,000x? And what if there were ten levels of that? Sort of like inception, maybe string theory is proposing that ten levels down is bedrock. Which would mean that entire universes within universes are part of what makes our universe up, and what if we were a microscopic part of someone else's universe? What if that was an infinite loop in either direction and everything was just, everything? Theoretical physics while stoned.

  • Elvis
    Elvis   6 days ago

    Now it all makes sense why I like music!

  • Frank DiMeglio
    Frank DiMeglio   1 weeks ago

    WHERE EINSTEIN WENT WRONG REGARDING WHAT IS BALANCED BODILY/VISUAL EXPERIENCE, AS ELECTROMAGNETISM/energy is gravity:Boris Stoyanov is a super bright and an HONEST physicist. He has agreed that the following paragraph (and I quote) is "crystal clear":"ELECTROMAGNETISM/energy is gravity. This is proven by F=ma AND E=mc2. Accordingly, gravity/acceleration involves balanced inertia/inertial resistance; as ELECTROMAGNETISM/energy is gravity. "Mass"/energy involves balanced inertia/inertial resistance consistent with/as what is balanced ELECTROMAGNETIC/GRAVITATIONAL force/energy, as electromagnetism/energy is gravity. Gravity IS electromagnetism/energy. That objects fall at the same rate (neglecting air resistance, of course) PROVES that ELECTROMAGNETISM/energy is gravity. Think about it." Get a good look at the BLUE SKY. Get a good look at what is THE EYE. Consider THE MAN who is standing on what is THE EARTH/ground. Touch AND feeling BLEND, AS ELECTROMAGNETISM/energy is gravity. Balanced BODILY/VISUAL EXPERIENCE is the reason that objects AND MEN fall at the SAME RATE (neglecting air resistance, of course), AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. (Accordingly, the rotation of WHAT IS THE MOON matches it's revolution.) "Mass"/ENERGY involves BALANCED inertia/INERTIAL RESISTANCE consistent with/as what is BALANCED electromagnetic/gravitational force/ENERGY, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/energy is gravity. Gravity IS ELECTROMAGNETISM/energy !!!E=MC2 IS F=ma. This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/energy is gravity !!!!!!! It all CLEARLY makes perfect sense, AS BALANCE AND completeness go hand in hand !!! Think QUANTUM GRAVITY !!!!!!!!!!!By Frank DiMeglio

  • Kev Munoz
    Kev Munoz   1 weeks ago

    We all have GOD GENE 🧬 IN US they’re trying to eliminate it from us by 💉 time for us to wake up and connect ourselves to our higher self and manifest our true potential 🙏🏾🙏🏾you are not alone who ever knows what I am talking about …

  • Mel2199
    Mel2199   1 weeks ago

    There is only one number and it is 42

  • Joy Boy
    Joy Boy   1 weeks ago

    Study wisdom your all stuck because no wisdom. U made a rocket but wisdom is the ability to see through all things to prevent bad things from happening

  • Joy Boy
    Joy Boy   1 weeks ago

    It’s right string theory works with all universe . Without this never will we be one to be there for you all . Good job you saved the world mr

  • Andrew Meliokrates
    Andrew Meliokrates   1 weeks ago

    FIRST VIOLATION OF THE LAW OF CONSERVATION OF ENERGY (MECHANICAL VERSION) --------------------------------------------- ANSWER THE TWO SIMPLE QUESTIONS BELOW. --------------------------------------------- ASKING OUR TWO SIMPLE QUESTIONS FOR THE 6TH TIME. -------------------------------------------- 1) Consider carefully and thoroughly (and many times!) the link https://www.youtube.com/watch?v=xX14NK8GrDY . -------------------------------------------- 2) Having in mind the link https://www.youtube.com/watch?v=xX14NK8GrDY assume that: a) Ma = 1 kg; b) Mb = 4 kg; the value of Mb can be either increased or decreased as many times as you want; c) V1 = 1m/s = const; d) Ffr. = force of friction inside the zigzag channels = 0.0000001 N; the latter can be further decreased as many times as you want; e) N = number of zigzags = 10; the value of N can be either increased or decreased as many times as you want; f) Shapes of the zigzags = sinusoids; the latter can be replaced by any other curve patterns. -------------------------------------------- 3) It is evident that if V2 = 0.6 m/s and if V3 = 0.1 m/s, then (a) the law of conservation of linear momentum is valid and (b) the law of conservation of mechanical energy is invalid. -------------------------------------------- 4) It is evident that if V2 = 0.8 m/s and if V3 = 0.3 m/s, then (a) the law of conservation of linear momentum is invalid and (b) the law of conservation of mechanical energy is valid. -------------------------------------------- 5) It is evident that both (a) the law of conservation of linear momentum and (b) the law of conservation of mechanical energy are invalid simultaneously in this special particular zigzag case, which is described in the link https://www.youtube.com/watch?v=xX14NK8GrDY . -------------------------------------------- SO ANSWER THE TWO SIMPLE QUESTIONS BELOW. -------------------------------------------- QUESTION 1: V2 = ? (How many meters per second is V2 equal to?) QUESTION 2: V3 = ? (How many meters per second is V3 equal to?) -------------------------------------------- LOOKING FORWARD TO YOUR TWO ANSWERS. =============================== =============================== =============================== =============================== =============================== =============================== SECOND VIOLATION OF THE LAW OF CONSERVATION OF ENERGY (ELECTRIC VERSION) ------------------------------------------------------------ ANSWER THE FOUR SIMPLE QUESTIONS BELOW. ---------------------------------------------------------- LOOKING FORWARD TO YOUR FOUR ANSWERS FOR THE 6TH TIME. ----------------------------------------------------------- 1) Consider carefully and thoroughly (and many times!) the link https://www.youtube.com/watch?v=BAydFMDKj2Y -------------------------------------------------------- 2) Having in mind the link https://www.youtube.com/watch?v=BAydFMDKj2Y answer the four simple questions below. -------------------------------------------------------- QUESTION 1: What is the value of the electric energy, which is consumed by the electrolyte, that is, how many Joules of electric energy does the electrolyte consume? QUESTION 2: What is the value of the Joule's heat, which is generated by the electrolyte, that is, how many Joules of Joule's heat does the electrolyte generate? QUESTION 3: What is the mass of the released hydrogen, that is, how many kilograms of hydrogen does the electrolyte release while electrolysis takes place? QUESTION 4: What is the value of the heat, which is generated by burning/exploding of the released hydrogen, that is, how many Joules of heat is generated by burning/exploding of the released hydrogen? -------------------------------------------------------- ANSWER THE FOUR SIMPLE QUESTIONS ABOVE. LOOKING FORWARD TO YOUR FOUR ANSWERS.

  • The Lung
    The Lung   1 weeks ago

    Would the ant recognize larger dimensions??Just like dimensions too small to notice what about the possibility of dimensions that are so massive its near impossible to notice.We could be the energy vibrational frequency defining another larger unknown dimension. We could be the string in theory

  • Adrian Andrews
    Adrian Andrews   1 weeks ago

    So this was feb 2005 it’s now 21 , do we know if this theory is correct yet ?

  • Justan Extra
    Justan Extra   2 weeks ago

    7:47 and the geniuses fixed it.Now we can see a 3D model on screen too.This is what I like about science and technology.They know that with the current technology they can't but they are sure that in future we definitely would.

  • Lohith Allada
    Lohith Allada   2 weeks ago

    Hello! I am from 2021. We still don't have 3D monitors. Signing off!

  • Adipta Saha
    Adipta Saha   3 weeks ago

    This lecture increases increases my attraction to universe

  • victorious1612
    victorious1612   3 weeks ago

    what if you go the other way? instead of looking for dimensions on such a tiny scale, what if the dimensions also go the other directions, on a much larger scale, that we exist in dimensions of space that make of way larger ones.

  • Stuart Hamilton
    Stuart Hamilton   3 weeks ago

    What is the extra dimension is bigger than us, what if our universe is just a particle of a bigger dimension, could we ever detect it?What if there is a dimension where Pier's Morgan is not a t**t?! -Na lol joking I know that's not happening!

  • Logos
    Logos   3 weeks ago

    Very Interesting even for one who believes in gnosticism, neoplatonism, vedanta philosophy and other systems that includes a theory of higher dimensions.

  • Caspar Zwart
    Caspar Zwart   4 weeks ago

    It is as explained here. But it is a turningpoint as wel. Once you go through the string, complexity explodes in ways we cannot calculate.

  • Caspar Zwart
    Caspar Zwart   4 weeks ago

    The reason why 10 dimensions is the limit is because the Jewish kabbalists have limited it in the sefirot. The 1 over 10.

  • Duane HP
    Duane HP   4 weeks ago

    The aquatic property connolly charge because turkish differently terrify despite a groovy daniel. hanging, garrulous moat

  • Frank DiMeglio
    Frank DiMeglio   4 weeks ago

    WHY E=MC2 IS NECESSARILY AND CLEARLY F=MA ON BALANCE:Energy has/involves GRAVITY, AND ENERGY has/involves inertia/INERTIAL RESISTANCE. C4 is the proof of the fact that E=mc2 IS F=ma ON BALANCE. This explains the fourth dimension. TIME is NECESSARILY possible/potential AND actual IN BALANCE, AS E=MC2 IS F=MA ON BALANCE; AS ELECTROMAGNETISM/energy is gravity !!! The stars AND PLANETS are POINTS in the night sky. E=MC2 IS F=ma. ("Mass"/ENERGY IS GRAVITY. ELECTROMAGNETISM/energy is gravity.) The EARTH/ground AND what is THE SUN are CLEARLY (on balance) E=MC2 AS F=ma. TIME dilation ULTIMATELY proves ON BALANCE that E=MC2 IS F=ma IN BALANCE, AS ELECTROMAGNETISM/energy is gravity !!! (Gravity IS ELECTROMAGNETISM/energy.) The sky is blue, AND THE EARTH is ALSO BLUE. The stars AND PLANETS are POINTS in the night sky. E=MC2 IS F=ma ON BALANCE. Great !!! This NECESSARILY represents, INVOLVES, AND DESCRIBES what is possible/potential AND actual IN BALANCE, AS ELECTROMAGNETISM/energy is gravity. GRAVITATIONAL force/ENERGY IS proportional to (or BALANCED with/as) inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma; AS ELECTROMAGNETISM/ENERGY IS GRAVITY. Gravity/acceleration involves BALANCED inertia/INERTIAL RESISTANCE, AS E=MC2 IS F=ma ON BALANCE; AS ELECTROMAGNETISM/energy is gravity !!! It all CLEARLY makes perfect sense. BALANCE AND completeness go hand in hand.By Frank DiMeglio

  • Dillanio
    Dillanio   1 months ago

    I hope I will live long enough to see this theory proved. It would mean that I would have witnessed Humanity fully completing the understanding of nature to its very core.

  • Rhogog
    Rhogog   1 months ago

    That's all fine but I can't unsee the second face on the back of his head on the thumbnail now.

  • Noob Geeks
    Noob Geeks   1 months ago

    Amazing , i think the hadron collider must be out and working by now cuz this video is 8 years old

  • Ken Kaercher
    Ken Kaercher   1 months ago

    How were gravity and elements start? The Periodic Table is a flat map: https://www.youtube.com/watch?v=UG9Buh6qaao&t=17s

  • peter rogers
    peter rogers   1 months ago

    Or a science finally stumbled across there option to destroy energy? This solution is based on energy only being able to transfer

  • Sam Shee
    Sam Shee   1 months ago

    Thats what they mean when they say "this world is an amazing place".