Quantum Fields: The Real Building Blocks of the Universe - with David Tong 

get someone on that explains thing better and simpler. and talks slower!

This video deserves translation to as many languages as possible. It has been a pleasure translating it to the language of Rosalía de Castro, Castelao, Ángeles Alvariño, Parga Pondal and roughly 3 million people.

About this all-encompassing equation. I would like to know the physical meaning of the fact that it is exponential.

'Building an empire means building a metaphor' ~ Sir Winston S. Churchill ~~~ Keep at it guys, we'll find a way to translate quantum field theory into P.F.E. (Plain English)

Great talk. Maybe the best one yet that I've heard from the RI. He spoke at just the right pace and level for an interested layman to stay with him.

In fact it is

D.C. Gottardo what machine he speaks about what cost 20 billions?

@Dursunali Kaplan bird up.

Anyone that don't see through the rhetoric are trained and or in denial. BiGG universities will also withhold real historical actual data as weLL. 🕋

As long as he stops smacking his lips every time he stops and starts

MathTerminds - Making Math Like Finger Painting I concur

A bit magical indeed. I still play with magnets at nearly 50 years of age. Wonderful presentation.

legendary note indeed :)) it also shows, regardless you play with the force of the universe you can keep the inner child

Absolute Truth is much more simple than such convoluted understandings, to wit: EVERYTHING IS THOUGHT WITHIN A GREAT MIND. Some call that Mind "Nature" and some call it "God." And no amount of "particle" splitting or hair splitting will ever allow intellect to conquer this ultimate and absolute Truth. Want to know more? From the simple cure for cancer to the very Meaning of Life? "Seek and ye shall find"....

Always..and always be

He is explaining spin incorrectly

@@ytad87 ok, then correct it.

I can't stand this guy, but these days this is the only Quark Field video youtube serves up. Can't find advanced physics video anymore, just this pop science pablum.

@@edwardnorton3449 you can find more advanced videos on youtube but the videos will have relatively shorter views because its hard to understand them. Scrolling waaaaaaaaaay down might help or just find a course online

I agree with you. David Tong is a very engaging speaker, and he has a real passion for physics. He is able to explain complex concepts in a clear and concise way, and he always seems to be excited about the subject matter. I think the thing that I admire most about David Tong is his enthusiasm. He truly loves physics, and it shows in his lectures. He is always asking questions, and he is always looking for new ways to understand the world around him. I think that David Tong is a great role model for students of physics. He shows that it is possible to be both passionate and rigorous in your studies. He also shows that it is important to be curious and to never stop asking questions. I am glad that you mentioned the magnets. I thought that was a great demonstration, and it really helped to illustrate the concept of quantum fields. It was also a reminder that physics is not just about abstract concepts, but it is also about the physical world around us. I think that David Tong is a great example of what it means to be a physicist. He is passionate, rigorous, curious, and he has a real love for the subject matter. I am grateful that he is sharing his knowledge with the world, and I am excited to see what he does next.

Absolutely. I usually fall asleep to this stuff. Respectfully of course. I ended up listening twice. Great stuff and great comment.

Me too

The Greeks invented nothing , they were educated in Egypt Africa. What kind of rubbish do they teach there. Your maths comes from India not Europe, you lot are liars.

I have enthusiasm. I have knowledge and brilliance too. You're not allowed to introduce yourself. Men have been so full of lies and absurdity that reasonable men have had to take up arms to deal with your absurdity and disrespect.

And his humor!

I totally agree with you. Hello from Russia. 😊

This lecture is absolutely incredible.

The Greeks invented nothing , they were educated in Egypt Africa. What kind of rubbish do they teach there. Your maths comes from India not Europe, you lot are liars.

Ayatollah does not believe in Quantum Fields.

Iran is not a real place, its fake news

Hosseyn, I applaud your quest for knowledge. Stick with it! ❤️ Fascinating stuff.

Is "Faradays throne" a nickname for the electric chair?

@@franciskai4155 - Ya, he also doesn't believe in evolution.

Well said and great comment.

Watching this talk, 2nd time after I watched it the first time a long time ago. One of the best talks!! Totally agreed with your last line in the comment.

The Greeks invented nothing , they were educated in Egypt Africa. What kind of rubbish do they teach there. Your maths comes from India not Europe, you lot are liars.

See you in five to eight years, then. ;-)

Obviously, you never heard the MOST consise explanation of a convoluted subject, namely, "god did it".

@@2011littleguy that's not an explanation, that's ignorance

He admits nobody has a clue about any of it and its just maths.

Here is a much more concise - and correct - explanation: EVERYTHING IS THOUGHT WITHIN A GREAT MIND. Some call that Mind "Nature" and some call it "God." And no amount of "particle" splitting or hair splitting will ever allow intellect to conquer this ultimate and absolute Truth. Want to know more? From the simple cure for cancer to the very Meaning of Life? "Seek and ye shall find"....

@@2011littleguy that’s not a very good explanation considering people literally made up the concept of God

Hear hear!

Perfectly articulated, round of applause from me👏

Indeed!

I heartily agree. He is inspiring as well as inspired!!

Europe invented nothing and discovered nothing, all stolen knowledge repackaged, stolen from Africa , Egypt, Kush , Ethiopia, you people are so ignorant, no European discovered any continent or country on the world, the natives were always there first. Europe was and is the third world . Africa and Asia is and was the first world, of knowledge and civilisation,

Europe invented nothing and discovered nothing, all stolen knowledge repackaged, stolen from Africa , Egypt, Kush , Ethiopia, you people are so ignorant, no European discovered any continent or country on the world, the natives were always there first. Europe was and is the third world . Africa and Asia is and was the first world, of knowledge and civilisation, Is there any thing else you want to claim you did or invented, I am a real world historian , try me.

Unbroken chain of scientific discovery? Nay stalled by a century of mythamatical denialism and misinterpretation. Most modern cosmology is unmitigated BS. NASA continues to prove an electric universe with every probe.

@@aubreydebliquy8051 you're schizophrenic

The earth is a giant organism.

@@aubreydebliquy8051 On every thread there's nearly always a conspiracy theorist, a quack or just a deluded fool and very often, all of these.

@@kingsman428 Why do you use CIA talking points and posturing in a debate if your argument is so solid? Are you aware that every word you uttered in that comment falls squarely in the category of ad-hominem and logical fallacy? Or in simple language smear. For clarity, what you are saying is that nobody need listen to someone you have categorized as conspiracy theorist, a quack or just a deluded fool. If that was so true then you should have no difficulty exposing and deposing their erroneous argument. You don't do this, you attack the person and not their argument. It is less of a logical fallacy to point out that your position is consistent with somebody who has no argument and is incapable of correcting error and therefore resorts to cheap insults, comfortable in the position as one in the company of an ubiquitous and potentially erroneous consensus.--- The same error as was the case 100 years ago when everyone in the scientific community agreed that heavier than air flight was impossible. I am pointing out the absurd parallell between that frame of mind and the prevalent one today that is ignorant of the fact that gravity is to be assumed as electrical in nature in the absence of any evidence to the contrary, nor any science to justify the alternate albeit prevalent non-science belief. This entire area of so called science is religious belief, NOT SCIENCE at all. Refute it if you can.

Hmmm...how many have you seen?

He has a smacking tongue indeed...

Almost everything he said was wrong

@@hosoiarchives4858 Thank you for agreeing on this !

@Roger Loquitur , the teaching and understanding of a subject. Kind of like Tong is doing here.

@Roger Loquitur, it doesn't look like I'm the one "struggling with language" so much.

Can someone please recommend him for Knighthood? :)

Brilliant Lecture👍

I couldn't agree more

Europe invented nothing and discovered nothing, all stolen knowledge repackaged, stolen from Africa , Egypt, Kush , Ethiopia, you people are so ignorant, no European discovered any continent or country on the world, the natives were always there first. Europe was and is the third world . Africa and Asia is and was the first world, of knowledge and civilisation,

I agree!

Indeed! I've watched several and this was the best by far.

LOL "great job" Now demonstrate using Natural science.

NEW Cutting edge BS? Can't wait, I can feel the dopamine flowing already.

I don’t think ‘simplistic ‘ means what you think it means!

Did it help your understanding the universe? I mean, the basics of it?

@@lauragolub4228 Yes, the idea of a "new" periodic table, represented by the standard model, changed the way I think about the universe in many surprising and interesting ways. Dr. Tong summarizes this at around the 33:00 mark.

Me too! I just linked this on my Twitter feed from a random comment somebody made to a post I put up years ago. I am now rewatching this lecture for probably the 10th time.

I also thought they looked alike! Also they sound very much alike but only when Tennant plays the Doctor (DT has a strong Scottish accent)

Being in England rather than the U.S., he could have given himself twice the jolt.

Unless he 'discovered' why you shouldn't insert your fingers into one!

LOOL

@@@MilesB1975 : he probably would have been curious enough - just very shortly before he died. lucky for us.

How do you know Faraday didn't install it?

Yes, fantastic!!!!

lol

@@fastidioustomato8265 Let's see you do better.

@@guptadagger896 I can only imagine!

Thats exactly what I was thinking !!! I am so thrilled to be a witness and (at home students😂) to the worlds most smartest ppl on Earth. This is of a devine order of the most high!!!🙏 My soul is so gratefull. I can listen, learn, ask questions, give my opinion and get feedback! My soul is most humble, satisfied and thankful for this devine interaction.🙏. ✌&💚&🌹Blossom.

Ah, it is religion, I see.

Taking susy, huh? How was the first sheet?

I am doing Vector Calculus with him, his lectures are really good

Yeah, yeah.

@@username-zs6dv Same

@@iofhorus4126 Nah im first year

Yes Please, here take my tax dollars!

David tong has a lecture series on QFT online, it is of course mathematically rigorous, but it's free! :D

Seeking the truth as it relates to conscious life? Search *_Truth Contest_* and read the top entry called "The Present". This is truth you can and should check for yourself, this is truth the evidence says is true. The difference between knowing and not knowing is checking nothing could be more important or more worthwhile.

+palvindar Chhokar TY

That's good news. Please paraphrase the lecture then for the rest of us.

The Royal Institution

The Royal Institution

Frank Heuvelman Separating oceans is artificial, on quantum level it could be our big bang field and the others ... ;)

42:30, when is speaking about all those electromagnetic bright minds and their experiments, why the isn't the god of them Nicola Tesla mentioned ? Any true answer ?

Excentric, Tesla was a great inventor and engineer (and a good friend of a pigeon wich could shoot laserbeams out of its eyes and predicted the future appereantly), but he rather applied stuff and found some things out on the way, what was cool. What exactly did he put into formulas and language and shared with the world in a readable manner to call it science instead of engineering?

Glad you enjoyed the lecture!

Really? I find him to be an average lecturer.

@@wayneyadams Care to share your survey and evaluation criteria?

@@crinolynneendymion8755 33 years teaching physics.

So you failed in high school math. There is no shame in that. So did a lot of other people.

You can look them up online

Newton would have attributed quantum fields to magic or God and would have wanted to know how an alchemist could use them to turn lead into gold. Don't ya think?

Raphael, I just wrote to the RI to find out ... I think it's specific to the venue, which is a damn grand history itself ... will let you know what they say.

Raphael, here is the reply from RI minus my personal info... "The desk in the theatre now was made in 2008, and is probably the fourth or fifth used in the theatre. It’s the same size and shape as the one originally installed in 1801, though. We do have various desks that were Faraday’s himself, such as the one in the Faraday Lab in our museum." you're welcome and neither of us need worry about Newton's ghost haunting our imaginary RI lectures ... Michael Faraday's ghost, well that would be another matter. :-)

When we finally see the equation we ought to ask: what is behind all that. No model means anything except we know the math, and what is its origin? It originates with “persons."

@@JRobbySh Much of this lecture is about "what is behind the quantum fields equation." The fact that it predicts results like the procession of electron in a magnetic field so accurately must mean something. The equation is an accurate but mysterious description of the behavior of the universe we're in. As he says it doesn't say anything about the origin of our universe, a speculative area where scientists come up with hypotheses such as we're living in a simulation run by a bored teenager on a PlayStation 3159, or in a multi-universe. Only some of those theories involve some conscious person "behind the equation" if that's what you meant.

Europe invented nothing and discovered nothing, all stolen knowledge repackaged, stolen from Africa , Egypt, Kush , Ethiopia, you people are so ignorant, no European discovered any continent or country on the world, the natives were always there first. Europe was and is the third world . Africa and Asia is and was the first world, of knowledge and civilisation,

This lecture of his is also amazing: ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-UVuKyZ4pBzg.html

tggt00 just revisited this lecture and saw your post thanks I loved the video you recommended.

Europe invented nothing and discovered nothing, all stolen knowledge repackaged, stolen from Africa , Egypt, Kush , Ethiopia, you people are so ignorant, no European discovered any continent or country on the world, the natives were always there first. Europe was and is the third world . Africa and Asia is and was the first world, of knowledge and civilisation,

I concur.

I'm on my 20th.

I'm on my 20th.

I'm on my 20th.

The poinsettia sets a point and is red as in read the points !

Please sing a verse in unity and harmony to the universe because music can make the world turn into unity for the universe !!

Europe invented nothing and discovered nothing, all stolen knowledge repackaged, stolen from Africa , Egypt, Kush , Ethiopia, you people are so ignorant, no European discovered any continent or country on the world, the natives were always there first. Europe was and is the third world . Africa and Asia is and was the first world, of knowledge and civilisation,

That was my understanding too.

crazy in the sense of not accepting million dollar prize

Thank you for making this clear. I didn't quite catch that one correctly. I though he was using the word "crazy" in a humorous way because of the Russian's philosophy of science solely for the joy of discovery, and therefore not accepting the one million dollar prize.

that doesn't make him crazy. that makes him interesting. this planet MUST rid itself of money, religion and politics of it is to survive. he made a statement that has been noticed.

you mean utopia

71? LOL! Wonderful! I have to say that I haven’t found too many advantages to aging but there are a few. One of them is being able to learn something new and appreciate that new stuff so much more because we have a much bigger picture to place that nugget of information.

We're exactly on the same page...

🌿🌷🌿 seventy-seven here 🌿🌷🌿 and I've delved into the spiritual and consciousness repercussions of quantum theory and they dove-tail exquisitely ! So much fun !

All of you in this thread should have a silver senior's quantum science club. Together, who knows? Might just advance the field. Also, people like me would love to be mentored by some rad older lady scientists! I want to be like you when I grow up! 👏

The US is out?

🌐👌🎫

💾👌🤷‍♂️🌐🌌👇👌😮🤷‍♂️🎫💾👌🎫🌐👌

❤🎉😮

❤

❤

@Roger Loquitur A theory in physics is a model that describes and explains certain aspects of the real world, or in this case, the whole world, without contradictions or unnecessary assumptions. The model described here is elegant, striking and convincing with a tremendous scope. Admitting that has nothing to do with faith. Only logic and, sure, a bit of education doesn't harm.

@Roger Loquitur your talking gibberish

John Oliver of Physics

Yes, so refreshing to listen to someone speak with such passion about their topic and be able to convey it in easy-to-understand terms. That's the sign of someone who is a real expert.

Absolute Truth is very easy for anyone to understand: EVERYTHING IS THOUGHT WITHIN A GREAT MIND. Some call that Mind "Nature" and some call it "God." And no amount of "particle" splitting or hair splitting will ever allow intellect to conquer this ultimate and absolute Truth. Want to know more? From the simple cure for cancer to the very Meaning of Life? "Seek and ye shall find"....

@@tomrhodes1629 42

Me too

I can explain it to you but I can’t understand it for you.

A native English speaker would say, "Of all the channels . . . " instead of "In all the channels . . . "

He’s awesome!

Well, that depends on how you interpret the equation. The standard model is a model. One can insert as many quantum fields as one likes without changing anything about the structure. So basically there is not much that can break about it. We just adapt it and it's right back where we began. Nothing lost but not much gained, either.

also it did not predict DE or DM, or the orbit of a planet. yeah he really overspoke there. one could probably say "no experiment has contradicted it" until the W mass

@@nmarbletoe8210 The W mass doesn't contradict the standard model. It simply tells us that we may have to insert another field. It can handle SUSY, for instance, just fine.

Great

do not go into investment banking

@@sonjak8265 why not

@@RockyRoad213 Serving the top 0.1% at the expense of the working and poor people will destroy your soul. Both banking and finance are useful, but international finance is mostly robbery. You have great skills. Do something good. Study sciences, medicine or engineering. Money will come.

@@sonjak8265 i dont intend to go into IB, but surely the best way to do good in the world is to earn as much money as possible, then use that to help the ones in need? For example, there is only so many ppl you can help as a doctor since you can only help one person at a time, but with money you can establish charities and fund help schemes. That way you can influence a huge number of lives

Actually, yes.

that because he is a nerd

The Royal Institution - Oh, do you need translators? I’m fluent in Spanish and English … I grew up speaking both, truly bilingual, although at this point my English is much better than my Spanish (I haven’t spoken Spanish much since I was thirteen), but this might suit your needs: with native English comprehension I can better grasp the gist of the lecture, plus I have somewhat of a science background (more of one than your average bear, at any rate?) so I’d be able to easily pick out those scientific terms of art unfamiliar to me in Spanish to look them up, while making sure not to blur the meaning of the lecture in the process! I hope I’m not getting unduly excited, but … I’m thinking we could be a good match!! Certainly Spanish isn’t obscure, no doubt you have some volunteers already. But if your current Spanish translators ever feel overwhelmed by your output, and you would like to lighten their load by adding one more translator to the roster, I am definitely interested! If you have any need, please let me know here, and we’ll work out some way to exchange contact info. 🙂 Cheers!

youre all hired just remember to add a loud wet “tsk” after every delicious sentence .. and a lip smack now and then for good measure.. and two or three combinations once in a while; “ tsk tsk suck air smack smack “ - now youre talking physics .

The Greeks invented nothing , they were educated in Egypt Africa. What kind of rubbish do they teach there. Your maths comes from India not Europe, you lot are liars.

illuminati*

Sorry to read that. The fundamental rule of quantum mechanics is “If you think you understand it, you don’t get it.” 😺

Except that we do know. All you have to do is to go to the science library and grab a couple books about quantum field theory. We both know you won't, but that is your problem, not ours. ;-)

I’m sure some kid accidentally clicked on this and downvoted it for being too boring

It got disliked because you don't floss

Some religious people think humans were put here. I would guess the dislikes come from them.

One reason to dislike it is the fundamental "quantum uncertainty => fluctuation" misconception and all its wrong, "classical picture"-derived consequences (see e.g. Arnold Neumaier's physics FAQ).

I disliked it, because the stated topic is quantum fields, while it was just slightly touched during 10% of time, no explanation, just shallow oversimplified metaphors