Just an update - This video was shot in 2005. The Large Hadron Collider started in Sept 2008. It has been 12 years since the Supercollider started and sadly it hasnt found anything that supports String Theory in its current form. Beautiful idea, but still a long way to go.

7:43 I can only show of course 2 dimensions on screen, some of you guys will fix this one day. Inspiration level 3000.

The only reason I ever got into theoretical physics was because of Brian Greene. And it was very random, too. Back in 2000, I was home, channel surfing at like 1am and I just happened to settle on a UHF channel and it was Brian Greene, giving a talk at a bookstore while promoting his book, The Elegant Universe. He started talking about string theory and I was hooked ever since lol.

Aliens finding out humans discovered string theory : Ah they've started kindergarten

This guy explained it so nicely that i didn't even notice those 19 minutes.

To be honest. This guy is amazingly good at public speaking. He doesn't miss a beat. What a memory. An under-appreciated skill to have including the fact that he's also a genius. He's like a salesman, but he's selling you a pursuit in science.

One of the best classes I took in university was a physics course that was focused on understand the theories in a practical sense, like this, without all the math that can make it unapproachable. Math, physics and engineering need more opportunities like this to tell the story of what their math means... It makes it so much more interesting.

Ik he’s a physicist, but he BETTER be a physics teacher. If I had someone like this as a physics teacher I would still want to learn physics.

That was the quickest 19 minutes ever...that was amazing

I want to drop everything and study physics now.

First time hearing Brian, and l found myself mesmerized by his simplictic way of describing complex theories. I could listen to him for hours, very interesting dude.

Man I've just recently gotten deep into physics and I've been looking for basic but comprehensive videos on string theory and I'm glad I found this👌🏾

This would explain why mosquitoes are so hard to hit. They are so small that they keep jumping between dimensions.

Today I am proud that I understand English. I am not good at physics but I have understood each single word he has explained. The best presentation I have ever seen!

He is one of the greatest speakers I’ve ever heard

As a stoner, I can appreciate the ants perspective

I have been studying science for a very long time and this man just managed to explain a topic that i haven't been able to comprehend and I understood every word. This man is the perfect combination of thoughts and expressions.

Why didnt my brain start to work until i left school.

I'm utterly amazed that, even if string theory is wrong, humans are able to come up with such an elaborate and consistent model of the universe. The animation at 14:28 alone is just incredible. Somebody actually had to animate the Calabi-Yau shape based on mathematical descriptions created by physicists. That's amazing.

It's so disappointing that this theory is still unproven... It's beautiful.

Brian Greene is probably the most clear and concise communicator of physics I've ever heard. His show on PBS is excellent too.

ffs, meant to be revising for a biology exam... and I'm learning about string theory...

Brian stands on the shoulders of many great giants I love his mind opening lessons. One of the greatest teachers of our time

"it'll be five years from now" *Video uploaded 7 years ago* me: :(

I feel like this man doesn't get enough recognition. I love the way he presents himself and he's an amazing man. Great work.

1AM Me: *looking at dank memes* 2AM Me: hypothesizing about our surrounding universe and the dimensions in which we are encompassed in as it relates to space time and general relativity

Wow. Im incredibly intrigued and excited by this topic, and extremely loved this explanation, this person is very good at what he's doing. I've watched a couple or more of videos about the string theory, superstring theory and the multiple dimensions, this one is my favourite. I can say that i've understood a lot, but i very much know there is a lot more to uncover. Thank you!

Great way to look at String Theory and Superstring Theory! Live the graphics and slides, makes it so much easier to understand. Thanks! ❣️❣️❣️

I have seen so many videos trying to explain string theory but I always end up with more questions than answers! BUT this one explains it IN-DEPTH and SIMPLISTICALLY!

the best easy-to-understand talk on string theory I have ever seen. those schematic animations helped greatly. thank you for sharing.

Thanks Brian Greene. It's a real skill to be able to describe an incredibly complicated subject so that a layman get's it, even if it's at the most superficial level. I've heard the term String Theory a number of times and even used wiki to try to work out what it was all about. It just made me more confused. Just a few minutes listening to this video allowed me to understand the fuss.

I wish more people could become more passionate for their work like this guy

"5, 7, to 10 years from now." 7 years after this TEDtalk we found the Higgs Boson.

What if our dimesions are the smallest dimesions, and the "missing" dimesions too BIG for us to observe...

Huge respect for Sheldon Cooper. Understand his fascination now.

I literally wish I knew someone that really enjoys these things and I can Discuss these with him

“If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.” ― Nikola Tesla

and on the other hand we have flat earthers ......-_-

3:07am and im watching physics videos again. what a world we live in!

On my opinion, the BEST ted talk ever! He speaks so good!

I cannot solve questions on 2d geometry and here I am learning about additional dimension!

At least Flat earth society can upgrade to Flat Space society

How have I not seen this TED Talk before? I'll be watching it several times. Finally an explanation of string theory that a regular person can grasp.

This was 7 years ago. I’d love to hear what progress we made on this since then!!

Hats Off to The one who Made those animations that helped Us to understand String Theory.

This is exactly what I was trying to explain to my friends when I was tripping on LSD.

What a Inspiring man. I am now a senior in high school but every time I see Brians presentations the more I get convinced to study Physics.

What a wonderful way to describe this theory. Well constructed and presented. Even I could understand. Thank you Brian Greene

thousands of boring textbooks and articles in less than 20 mins. THIS IS GOLD!

I need a follow-up video on this, a sequel of what came into fruition for the past years that the advocates of the superstring theory have worked on. Anyone recommend?

To me, it makes sense that dimensions exist that don’t interact noticeably with the ones we experience. After all, think of all the cell phone signals, wi-fi, Bluetooth, tv transmissions, etc. that surround us, yet we are oblivious to them. We have X-rays that go right through our soft tissue without being felt by us. Infrared signals in our remote controls. All these are constantly in our environment and operate in the dimensions we know about (the electromagnetic spectrum), but are only accessible with the aid of specially built detectors which extend our ability to detect parts of the spectrum our bodies have not been adapted to sense. The problem, of course, is that at our scale, there are size limits to what our specially built detectors can sense both in small scale, as well as large scale (e. g., the observable universe). It’s truly amazing the rate of change in our understanding of the universe in the last hundred plus years. Who knows what mysteries will be solved in the coming years? Fascinating!

The best explanation ever given for string theory... thanks lot sir...

Watching this in 2019 and amazed at the fact that the collider is already being used

When he said "when you swing your hand you're moving around all these extra dimensions" I started waving my hand with such enthusiasm!

Brian Greene is an excellent orator, it takes knowledge as well communication skills to present the way he does!

I'll be a physicist just by listening to this guy for days!

This man explains very well,, i wish i had a physics teacher like this during my graduation 😢

Awesome explanation of string theory. I am 13 years old and interested in science and math a lot, and this made my day. This shows a CHILD could understand this video. Brian Greene is a very good lecturer.

Thanks for the amazing lecture sir.

One theory to rule them all; One theory to find them; One theory to bring them all; And with dark matter bind them.

The comments here are more intelligent than most of UKposts. I like this place.

Thanks to Sheldon Cooper, I'm watching this video and many others and loving them all (and I'm in finance!)

Physics...love of my life, proud to be a physics learner.....and the learning is life long....doesn't stop!...and i want it should never stop

This talk has the most visually helpful explanation for this

So easy to understand after his excellent description. Truly. A master. A complex concept made simple. The mark of a true genius.Thank you Dr.Greene.

I've seen this presentation over 10 times and I am still left amazed at what could be possible

Thank you for this! I understood not more than 25%, but enjoyed all of it. Great, great speaker!

This was presented really well!

To most of us Sheldon was the one who introduced us to the String Theroy. Amazing Fella.

The level of abstraction required to comprehend this stuff let alone come up with it is insane.

I’m so glad that I finally got to go to college and study physics, I’ll be studying this theory in two years!!!!

This TED talk is absolute Gold

Watching this while smoking weed. Seem like I'm closing to the truth of the universe.

I´ve got doubts. Slick presentation. Tks

That’s a brilliant explanation. Why would anyone give this a thumbs down?

All things and theories aside i loved this man way of explanation and presentation, he explained in a way even a high school student will understand what he wants to say. And this brings us back to most powerful way to learn something that is ACTIVE LEARNING by teaching others complex things in the simplest way possible.

Always a pleasure to hear Brian Green! Thanks!

This is the best video ever i watched about string theory

Brilliant explanation, & presentation hope the experiment will come true

I went to CERN in 2013 and they said that in they did measure the energy after the particle collisions and it was less than when they started. Our tour guide was doing her PhD and said it was most likely the energy was lost to other dimensions.

I love the way Brian Greene explains these theories. I've heard others explain it but I can understand him better.

I don't know who Brian Greene is but he is amazing at explaining a complex topic in a comprehensive manner.

I need a part 2 or an update since it's been 10 years. Any resources which I can refer to? I want to know and understand the development since then

This might explain where my pen disappeared into when it fell down in my classroom

Nikola Tesla's idea was absolutely right. He always laid emphasis on the vibrations and frequency. So the string theory based on the vibrations. He said if we change the vibrations and frequency of a particle then its all properties will also change.

Absolutely extreamly well explanation.

This was the most amazingly explained video on string theory I have seen, and this is coming from someone who has watched over 20 videos or so- His students would be lucky :)

I could listen to Greene speak all day long. He has mastered the art of simple explanation regardless of subject matter complexity.

Sometimes I wonder how videos like this don't have 6 billion views

amazing explanation thank you!

These 19 minutes changed my life.

So birds don't fly they just walk on different dimension.

I started college as a physics major. It was precisely when I got to this part, the quantum physics including particles, that I realized I want to do finance.

Amazing speech beautiful explanation

I am currently obsessed with String Theory bc since around the time Covid began I've been having "crazy" ideas, thoughts and experiences about existence, time travel, afterlife, paranormal, multiverses, space, time, perspective, brain and memory functions, disease, blood types, predispositions, etc.. and after learning the basics of this theory I feel like it may explain it all in one way or another. My family has even sent me to rehab after 3 clean drug tests bc I opened up about the thoughts I'd been having.. but when I went there I found so many of my peers have had similar experiences and thoughts during this pandemic which has led to a higher than normal rate of worldwide death. I was raised pentecostal so spirits and the supernatural and religion have always been important in my life. I have said many times that God decided to bypass the apocalyptic Christian Revelation, and instead, disperse life across multiverses and eventually we'll all be able to not only rest, but live and store memories forever (exist immortally), in peace. So.. Covid.. population control, population disbursement, or the rapture in God Time (slowmo)? Ahh.. I'm rambling again. Anybody out there who can relate?

Why am I like this.. this whole time I was reading the comments and not even paying attention .

Im here because i always get so curious when Sheldon Cooper mentioned String Theory. #bigbangtheory

Amazing Explanation To The Possibility Of Having 4+ Dimensions!

30 odd years ago, I was deep in to studying the esoteric side of Aikido. One of the aspects was Kotodama. Superficially, was the very cursory understanding, often biased by cultural superstitions and traditions i.e translating Kotodama as power/magic sounds/words. In deep reflection, Kotodama as used to describe the cosmos was as 'sacred vibration'. In this esoteric idea rooted in Shinto and as interpreted by Omoto Kyo, all matter and energy is formed from these 'sacred vibrations'. The nature or 'frequency' of the vibration dictates the form (i.e. matter and energy) that is observable or deducable by man. The 'vibrations' have been attributed a human sound. 'Su' is the first emitted from the 'Big Bang' or the beginning, it's permutations formed the rest of what we know as matter and energy (even the gods of Shinto). (The most popular representation of this Ultimate Reality of the essence of the Universe is the sound 'Om' in Indic religions.) When I started to hear about vibrating strings and frequencies of super string, it reminded me.

@15:41 that vibrating energy aka extra dimension they are shown in Interstellar movie, when Dr Brand described it as first human touch to humans of fifth dimensions (They), while passing through wormhole. Respect for Interstellar movie increases day by day. Everytime I watch it , a whole new aspect comes to life. Thanks to all the scientists and Nolan.