Particles, Fields and The Future of Physics - A Lecture by Sean Carroll

[@YogiMcCaw]

Sean is that rare combo of of deep science and superb public communicator. Science needs more like him.

[@ToriKo_]

This!

[@AndrejKarpathy]

This is the best explanation of a lot of fundamental physics and intuitions I have seen so far. Lots of talk of vibrating, interacting fields!

[@muntoonxt]

Karpathy is interested in particle physics? o_0

[@ToriKo_]

@@muntoonxt WOAH if it wasn’t ur comment I wouldnt’ve noticed that was Andrej Karpathy

[@HeyYaKnow]

Dr. Sean Carroll is an intellectual black belt.

[@_John_Sean_Walker]

Johnny, this is about physics, not about metaphysics. It is not about making gold out of lead, and it is not about conjuring magnetism into counterspace.

[@ansfridaeyowulfsdottir8095]

But he has the voice of a Muppet. Kermit the Frog hybridised with Fozzy Bear. {:-:-:}

[@HeyYaKnow]

@@ansfridaeyowulfsdottir8095 If you think Carroll sounds like Kermit, you've clearly never heard of Dr. Jordan Peterson lol

[@misterright8626]

I started to watch this casually but it grabbed and held me for the whole lecture. This is one of Dr Carroll's best!

[@ToriKo_]

He’s good at doing that!

[@raymondlai5]

Dear Fermilab =) I would like to say, thank you, for taking the time and effort to both upload and share this video with the youtube family =). I hope you have a nice day, Fermilab =). Kind Regards Raymond Lai (Member of the Physics Family)

[@fermilab]

Thanks Raymond! We love sharing physics with our KZbin family.

[@naimulhaq9626]

Even if there were no charged particles, there can be electric fields. If there were no moving charges there still can be magnetic fields, similarly if you remove the planets you will still have gravitational field, IS NOT TRUE, not observable and not verifiable. Sorry Sean Carroll, you are not paid enough to answer such questions, as you admitted, but you were paid enough not to misinform the public. Schwartzchild assumed g=0 while proving/solving the equations of GR.

[@harisharanshukla2673]

Naimul Haq

[@larrylyons9362]

Hear hear!!!!!!!!!!!!!!

[@bozo5632]

+Naimul Haq - well maybe it's true in this universe, where we do have electric charges and gravitating planets.

[@Raddland]

The analogies in this lecture are totally new to me, and very effective. His portion of Field Theory is the new bar for all lecturers from now on!

[@antoniosalvador9754]

your clarity in explaining things makes your lecture so addictive. i almost listen to this several times a week. thank you.

[@thersten]

Same.

[@Hexanitrobenzene]

Sean Carroll has a gift for explaining physics, a wonderful sense of humour, even his voice is very pleasant :)

[@MaxWindshear]

Great upload! I am so impressed with Sean Carroll. His talks always have a good pace and he delivers concepts in a direct and understandable way. I love his sense of humor too.

[@darthmichael12]

You should watch Stargate Atlantis, it’s a great show.

[@sislertx]

Nope he didnt.ever explain MAGNETS...SERIOUSLY . HE NEVER DID...AT ALL.

[@Tom_Quixote]

@@sislertx To a physicist, explaining magnets mean saying it's a magnetic field and that you can calculate it. To most other people, an explanation is more than that.

[@rlmross]

@@sislertx oo

[@Jaggerbush]

I’m gonna go sleep 💤 I’ll take it

[@jaylambert2838]

Best science communicator I've found to this day. I feel much, much, much more deeply educated after listening to him explain a topic than others I've ever heard. He has a very unique talent for simplifying topics to the level of the layman without "dumbing down" the science - or more specifically, he can simplify a topic without doing so in a way that sacrifices scientific accuracy and rigor in order to make it fit the audience's prejudices and past mis-education. Or, maybe I should say he clears up misconceptions as he speaks while others I listen to try to just pass over the misconceptions so they can put it on our "level." Sean instead raises consciousness and understanding so we can be properly educated.

[@colinshawhan8590]

I think of it as science literacy. He is communicating the basic concepts in terms that a journalist or doctor, a non-physicist, can understand and at least appreciate what the underlying concepts are. He likely doesn't know much about the gall bladder, but somewhere he took a biology course so he is scientifically literate about the fact that it produces bile, or whatever. What's that mean? He doesn't care, that's a doctor's job.

[@wrqnine7675]

Sean Carroll is a national treasure. He is a great teacher and a great mind all in one. What he says about patience and physicists is true, but he seems to have found a pragmatic loophole through which he can communicate effectively. In earnestness there are clues that exist through human pathos, though not all that is science, it often provides more information than the fundamentality of boilerplate. Thanks for this.

[@helenel4126]

I'm a layperson. I found Dr Carroll's recommendation/insistence on viewing the quantum world as fields rather than as particles (apologies to the physicists who are offended by this inept phrasing) to be very helpful in trying to understand this topic.

[@Kwisatz_HaderachXIII]

They are both waves and particles

[@GeoffBernard]

I think this is Sean's best talk. I've never heard Quantum Field Theory explained so well. It's these sort of higher-level talks for the everyday physicists that I believe will lead to unified theory of all dimensions & forces.

[@SkydivingSquid]

As a student in Physics II, this has been the best physics video I've ever watched.

[@AurelienCarnoy]

1:13:00 the early universe had low entropy because black holes have low entropy. A black hole is a pocket universe. Gravity, the curvature of space time, is concentric (it is the pulling of space time) when looked from outside of the black hole. Like that ">" But from the point of view of the singularity, space is expanding. Outside gravity appears as expansion, as dark energy. Let me know if you can see what i mean. Thank you

[@ronaldderooij1774]

I was educated a political scientist. Math eludes me COMPLETELY. All my life, I was interested in physics. This video is a great introduction into particle physics. It opened a new world for me.Math still eludes me, but I read and watch everything there is about the fundamental things of nature. And I am getting it to some degree. That makes me see the world (universe) with completely other eyes. I am a richter mind than before.

[@uberhikari]

I've watched this lecture 3 different times in other videos and it never gets old.

[@yomama5827]

Dr. Sean Carroll is an intellectual black belt.

[@pullingthestrings5233]

It does get old, wait 500 years from now when those humans will laugh at us for thinking this was the best we could do.

[@1stAKIRA]

@@yomama5827 lplop ok loloolllllo I’ll loop l

[@1stAKIRA]

@@pullingthestrings5233 pop lolll ollol

[@1stAKIRA]

@@yomama5827 oh I’ll lol 😝 lolllolo lol lol oll I’ll lo llopplol pp lol p I’ll lll o lollloolollool lol poop lol lol o lol

[@DavidODuvall]

Dear Dr. Carroll: Thank you. Your presentation was wonderful and it left me with the perception that I now have a better personal understanding of some of the most important concepts of physics. Again, thank you.

[@IanLindstrom]

He explains so much, so well, with so little time. Particle at the End of the Universe is a great book. You know you're in Illinois when 1:06:00.

[@robertschlesinger1342]

Worthwhile talk by Sean Carroll on the basic of QFT at a level suitable for high school students.

[@Dr10Jeeps]

Excellent! This is why the internet is useful.....the ability to share scientific knowledge by brilliant, articulate experts.

[@calebhaines3794]

It is amazing that the volume of space of magnetic materials that used to control only a single muon can be used nowadays to store many muons via the accurate placement and displacement of magnetic procedural circuits.

[@binayakbanerjee9294]

I think name of Kanada should be spelt in same breath with Democritus. Let's recognize ancient Indian science.

[@feuerfrei56]

Sean, I appreciate your unique style of explaining difficult and complex ideas of physics to non-experts. You also get a lot of laughs out of me, which is no mean feat! Thanks for sharing your understanding and insights! Mark Koontz

[@muhammadalkhawarizmi3630]

28:10 Particle is small vibration of quantum field.

[@iqtime1400]

And what is time and gravity do you thinks!!

[@donaldsmith3926]

@@iqtime1400 The difference between when one jumps and when one lands.

[@onebylandtwoifbysearunifby5475]

@@iqtime1400 Space-Time. If you want to go further: special relativity is a good place to look for time\length explanations. If you want gravity: General Relativity is what you should look for. That's a tough subject. But some youtube vids give a bit of an idea. If a deeper understanding is what you're after you will need calculus (differential equations) and a very good understanding of "tensors" and vectors. It's a process. There is no easy shortcut for GR. (I shouldn't even attempt it, but: gravity is a distortion or curve in otherwise flat space. This curve is generated by matter (or mass). Once space has a curve, the stuff in space follows that curved shape. It feels like acceleration. That acceleration-like thing is gravity. If you were driving your car in a straight line you would feel nothing. But turn the wheel and make a curve: you feel a force. Now lets say that curve is actually a straight line, and it is space itself that's curved. You would feel a force no matter what path you tried to take. This is sort of what gravity is. And matter puts the curve in space. Everything is trying to follow a straight line, but all straight lines drawn on a curved surface are curves themselves. So that's your 'gravity'. The more matter, the tighter the curve gets. The tighter the curve, the more gravity force you feel. Even if you are not moving, but you are in curved space. ....Well that's idea in a paragraph anyhow. It really needs some time and effort to appreciate. So check out some vids and go for it.

[@redpillcoach1855]

@@onebylandtwoifbysearunifby5475 So....Mass tells space-time how to curve, and space-time tells mass how to move. Got it! I don't need no differential stuff.🤦‍♂️

[@robertw1871]

IQ TIME Gravity is time, time is the constant due to the impedance of space. What exactly is that I ask! Nobody has any clue whatsoever I tell you...

[@chrissmith7259]

Sean thanks for this. I argued about this at school in 1975 and My teacher Dr Firscht said I didn't know what I was talking about. I now think I did.

[@adithyakaravadi8170]

Best explanation of modern physics, clear and concise. Loved the humor too! Thanks Fermilab and Sean!

[@exhibitexpressevidence9919]

I've watched many of Sean's videos. This one is the best!!!

[@MoneyXJatt]

I will apply sunscreen on Monday if I am still interested to be in your position with with me and my wife in case you need need to contact her or my lawyer at any given date and time ⌚ and if there are no issues or issues that are available at this is the only issue in my resume attached below please let

[@Petrov3434]

@@MoneyXJatt is

[@sydbid6104]

I read 'the particle at the end of the universe' and loved it! Huge fan of Sean Carroll

[@anastasiszampas4292]

This guy is really smart! It's not just the physics; it's the spontaneous, resourceful humour!

[@shirleymason7697]

Anastasis Zampas ......and fast, he is quick on his feet, never has to say, "Uh...uh..." wish I had such a friend. No one around here thinks like this. Nothing interesting to discuss.

[@danielsnyder2288]

David Tongs explanation was also excellent. I've watched that one a half dozen times and learn something new each time. I have high hopes for this one too

[@thekkl]

Sean Carroll has got to be the best physics-for-the-non-physicist guy out there today. Einstein said to make things as simple as possible, but no simpler, and it's unfortunate that Michio Kaku, Neil Degrasse Tyson, etc seem to have missed the second half of that.

[@thegod2291]

True , they oversimplify and lose data.

[@danielsnyder2288]

David Tong also did an excellent explanation of this.

[@screwityoutubization]

Thank you, Hagen, for bringing me to this lecture series .... much appreciated.

[@hussainrazik1251]

One of the most enjoyable lectures I watched... very clear and entertaining at same time..

[@Tom-sp3gy]

Fantastic talk... simplified such a complicated subject to the point that even a high schooler can understand it ... thanks Sean for the great lecture which will no doubt have historical significance

[@jamesdunbar8417]

Yeoyorosoaepirptttsutstussu

[@Beer_Dad1975]

I wish I was younger and (much) better at maths so I could be involved in this great work.

[@fermilab]

Duly noted. Description changed.

[@scotty]

Always a treat to listen to Sean Carroll, one of the best.

[@marks-bp2hf]

Sean Carroll, an entertaining bloke, thank you sir.

[@MarkOates2]

This is the best explanation of quantum mechanics I've seen.

[@ianmichael5768]

A system of fields interlinked within Fields interlinked with fields interlinked Within one universe. And dreadfully distinct... Fields. The wonderful communicators of action(and presence). I apologize for stealing from Nabokov...and a movie. Excellent video.

[@odiesback]

Great lecture on a vert fascinating subject!. I had two watch it two nights in a row. Thank you for making this available to the rest of us.

[@MrGOTAMA420]

sean C. you are the MAN (in the sense that you are very smart and great at explaining very difficult things)

[@kidzbop38isstraightfire92]

I love the fact that he worked in "Miracles" by ICP...the fact that Sean is even aware of this song is hilarious. Funny guy, obviously very brilliant

[@JoeHynes284]

this was the best part of the lecture ha!

[@thersten]

@Brad Watson are you off your meds again Brad? Imma tell your mom!

[@vrvorper]

Great lecture, Thank You Sean Carroll. I just watched this for the first time roughly nine years later 11/05/2022 . I have a question: Is there a reference system within an individual quantum field or is one created when two or more quantum fields interact?

[@MikeRoePhonicsMusic]

Sounds starts at 0:19. I recommend adding an annotation at the beginning, as 19 seconds may exceed the "patience threshold" of some users.

[@trevorrogers95]

You really think people with short attention spans are going to click on this video? Nonetheless it’s not a bad idea.

[@systemoftubes]

Best overview of Standard Model I have seen

[@MH-qk7ls]

Awesome lecture! Thanks to Sean Carroll and all those teaching quantum field theory. It seems to me that we will make much greater progress by helping all of us think about the most accurate descriptions of nature that we currently have, rather than the false particle description. Picturing these fields throughout the universe is fascinating and their interactions make much more sense than the particle description. Hopefully younger generations learn about field theory as soon as possible!

[@modolief]

Brilliant speaker!! Excellent work, thanks!

[@dylan3657]

food for thought. there is great hope for humanity such brilliance

[@dburris718]

He was on joe Rogan, I’ve been subbed to fermilab for years im so happy this collaboration exists and I didn’t know it

[@timbob1145]

The text on the slide in the thumbnail should be the first thing taught and be regularly reminded in the field of quantum physics, the phenomena of particles must always be considered within context and treated only as a pin point, time stamped, localised volume of a greater system of waves and fields. It seems this is sometimes forgotten when discussing 'particles'. Anyone with better knowledge on the subject please correct me if I am wrong.

[@timbob1145]

@@schmetterling4477 how would you explain particles, would you describe them as absolute definite objects? I fail to understand their specific definitive nature. I have been lead to consider that what we observe as a particle is only an emergent phenomena of energetic interactions of waves and fields. So when observed under strict conditions and particularly short time frames that specific 'chunk' of space time could show distinct characteristics that it is treated as a separate entity to the rest of the picture, but I don't believe that it is. So particles, in your opinion, are indeed objective individual chunks of mass that due to their relatively low gravitational influence act in the unusual ways that they do, particularly at the 'quantum scale' and derive their properties and effects on other particles not from any external substrate or any kind of field but entirely from their own inherent properties. Not being manifestations of energy or wave interactions of any kind?

[@timbob1145]

@@schmetterling4477 thanks for the effort taken to explain, I think I was a little less wrong than you initially stated as after reading your explanation I think I had a fairly good grasp on what you outlined. I clearly didn't explain it as accurately as you though, can you tell I'm not a physicist haha. But I guess you get the point I was trying to make about particles not being what a lot of people think they are, as you said, object they are not. It seems that this is a bit of a stumbling block in a lot of physics... But if a particle is a measurement of energy, it still is only that specific particle when measured at that exact time and place and isn't necessarily fundamental in any way as the particles themselves are only emergent phenomena of wave and field interactions. Does that sound about right? You sound like you know your stuff. If so, as far as I can tell, the question now is what exactly is the substrate that the fields and waves act in or on? Am I barking up the wrong aether tree? I know that's an outdated term, but isn't it just a general term for all the fields that act on eachother to create particles?

[@lucidd4103]

Thank you very much, at least i can see Quantum physics beyond some kind of obscure and weird level of existence. And i really like the description, very elegant and de"light"ful indeed.

[@acerbicatheist2893]

Dr.C. is are able to make a delight of your ignorance, and to have you enjoy even the bits that you don't understand, to bring genuine intellectual curiosity, joy of exploring the unknown, to lead you up to previously opaque windows and let you see through them with almost naïve wonder, as a child who is exploring a field of snow for the first time. Truly, one of the best teachers in any universe ever. ❤️⚡✨😈👍🌎☀️🌌😃👍✨⚡💢❗🔺🔺🔺❓❗

[@titchglover2601]

That was Great thanks to Sean & Fermilab for sharing this.

[@billschlafly4107]

This is fascinating and terrifying all at the same time. Fascinating because science that isn't fully understood is always fun. Terrifying because it challenges everything you claim to know about reality.

[@NoActuallyGo-KCUF-Yourself]

Bill Schlafly, that is why it is best not to make such claims. If having a belief about reality causes distress when it is challenged, then it is probably not a good belief. My understanding of science is that there are models to use to make predictions and explanations. If a better model comes along, use that one instead.

[@gamesbok]

A particle accelerator visible from an aircraft would not have the required James Bond Evil Genius quality required at CERN. A hollow volcano would have been perfect, but volcanos are in short supply in Europe, except in Italy, but Italy was ruled out as neutrinos travel faster than light down there.

[@ninetyandthree]

gamesbok lol

[@NoActuallyGo-KCUF-Yourself]

Elon Musk would have found a decent volcano lair.

[@Monllorf]

Sean,Imagine a Probability Density FOURIER pulse to be stroboscopic, whose time between collapses is constant and the pulse existential time a function of energy. All fields coexist in the totality of space, and could vibrate, given a characteristic range of each field, in the presence of a given quantum levels of energy, that generates the pulse that characterizes the particles we detect during collision. The Probability Fourier Pulse concept is the same mathematically as that for generating standing pulses for string instruments. The displacement of the pulse is not continuous given that, a collapse is required before it resurges at a given infinitesimal distance. Please notice that this model is consistent with” time dilation” at significant levels of velocity or when it is stationary at a significant gravitational pull

[@donaldaxel]

At 38:51 -- most important and illustrated with fun examples, look here (quote): If the electrons were massless it would not ever stick to a nucleus; if the electrons were massless there would be no such thing as molecules, or chemistry, or life, the world with massless electrons would be a very very boring place indeed, there would be no Fermilab, no public lectures, nothing like that. He has humor! This is such a great way to explain the hierarchy of basic ontology (existence).

[@chycho]

Excellent lecture. Thank you for the upload.

[@bonesjones3003]

It really turned out sad didn't it Sean? Four years later and we haven't found a SINGLE!! super symmetric particle at the LHC. Makes me want to pull my hair out!!

[@patrikpass2962]

Have they found one yet?

[@fermilab]

Actually, in the Physics Slam 2012 video on our channel, the audience is encouraged to make some waves. See watch?v=Ef4nmhPCODA around 30:22.

[@hiratiomasterson4009]

I never imagined that a lecture about Quantum Field Theory would leave me in awe of the optical abilities of a frog...

[@drewandrews8673]

I need to watch more of Sean Carroll.

[@dosomething3]

I have no idea what the heck Sean was talking about but I laughed so hard that it compensated for that.

[@TheBinaryUniverse]

Excellent presentation and thought provoking content. I like this guy, plus the fact that I think he's right too.

[@420MusicFiend]

His book "The Particle at the End of the Universe" is phenomenal. If you haven't already, you should check it out.

[@Hexnilium]

Particles are a model construct that we use to more easily describe the complexity of continuously undulating waves.

[@ChaplainDaveSparks]

A lot has changed since I graduated from high school in 1972 and college in 1976. The only hint of anything beyond the basic proton/neutron/electron was a curious movie (by Disney, I think) called *"The Strange Case of the Cosmic Ray".* I think it mentioned something called a *"mu meson".*

[@NigelRudyard]

Brilliantly insightful and witty. I love the answer about Quantum Field Theory not catching the public imagination: "things that are correct are kinda boring...."

[@jamesbrockunier833]

P8

[@jamesbrockunier833]

Ou opi

[@jamesbrockunier833]

P

[@jamesbrockunier833]

Pi

[@jamesbrockunier833]

Op

[@wanderkunstler]

Excellent lecturer and content. Much better than Krauss, Cox, and others on these topics.

[@NoActuallyGo-KCUF-Yourself]

Cox and Krauss have their own unique charisma, and are entertaining. Carroll gives the straight dope, and is clear: easy to understand without a lot of dumbing down. High-level educator, not just a communicator.

[@shirleymason7697]

mdiem ......Krauss loves to insult, get in his digs. Carroll doesn't get kicks that way, much more polite.

[@NoActuallyGo-KCUF-Yourself]

Shirley Mason, sure, but I don't let minor details of rhetorical style like that get in the way of learning. I don't mind that Krauss insults (the targets of said insults are certainly deserving), but I think he pauses and laughs at his own jokes too much, and ends up stammering. If you can get past that, he does share very enlightening information.

[@bmoneybby]

True. I've tried and tried but I cannot get into Lawrence k. Cox's talks do generally keep it pretty simple, but he delivers with such a sense of great wonder they us very contagious. Brian seems such a good spirited human as well.

[@Scathingly]

@@shirleymason7697 - Spot on and such a trait is never attractive under. I do enjoy Sean Carroll's physics talks The other communicator who I really like to listen to is Prof. Al-Khalili.

[@CASSIANSKY]

dropped out of school when I was 15.. 19 years later I find myself obsessed by particle physics...its my dream to be a physicist...but it's too late now😟

[@jadpole]

Professionally, maybe, but you can still learn yourself some physics. The Theoretical Minimum is a good place to start, then you can learn the more advanced stuff with Goldstein (Classical mechanics), Griffiths then Schwartz (electromagnetism/electrodynamics), Ballentine(book) & Frederic Schuller(lectures) (Quantum mechanics), Sean Caroll & The Heraeus Winter School for Gravity and Light w/ Frederic Schuller (General Relativity), etc. For the maths, ocw.mit.edu should do the trick (linear algebra; calculus, single- & multi-variable, differential equations, etc.), and Khan Academy is great if you need to brush up on the basics. Once that's done, you can get to QFT and particle physics. Not an easy ride but, if you're really interested, the Internet has made learning that stuff easier than ever before, especially considering that you have access to lectures from real universities. ;-) Also, you can get degrees from websites such as EdX and Coursera. Depending on where you live, they may be recognized, so if you really want it, the door is still open.

[@huepix]

never too late. I'm 52. I'm going back!

[@CASSIANSKY]

+Jessy Pelletier-Lemire thank you for taking the time to write such a detailed reply..its very useful information and it will be utilised...thanks again and have a great day!

[@CASSIANSKY]

+huepix thanks mate!👍 hope it all works out for the best for you.

[@movieekkfreeakk9801]

it's never too late.... keep learning...

[@smailwaltit38]

very special thanks to Fermilab for sharing this interesting video

[@DaxHamel]

Just a tad disappointed that this is the first I time I hear a good explanation of the observed range of the nuclear forces.

[@tjejojyj]

DaxHamel I agree but surely it's better later than never. If this is shared widely the next generation need not wait.

[@michaelmedaugh6022]

Slylypqtglwyhl

[@michaelmedaugh6022]

@@tjejojyj la ;w was hemxglau ,😪😢etc Eh😁q p😘😇😑🙃

[@michaelmedaugh6022]

Wuold

[@smartcatcollarproject5699]

No mention of particles entanglement, or did I miss something ?Implications for nonlocality in time and space are interesting, I'd like to hear some explanation of this...

[@koralite3953]

Dr. carroll is a great explainer!

[@Crosshill]

This is probably the most confusing and frustrating subject I've ever tried to learn, but at least the delivery of information itself is done nicely by Sean. Oh what have I gotten myself into..

[@carlosfaurby8363]

I can see that it is really hard if you are new to the subject. It is really hard stuff. If you are from Danmark - as your avatar suggests - I can recomend you a book called "Kvantemekanik: atomernes vilde verden" by Klaus Mølmer. It is the only popular science book that I have read, that explains a bit beyond normal quantum mechanics, and give you a little bit about quantum field theory. Otherwise, just read Sean Carrol's books :)

[@Crosshill]

carlos faurby If you can find an english pdf/super cheap or equivalent source of that book, that would be splendid. I'm a native danish speaker but an adopted english thinker. Which one of his books would cover this the best, and are they all entry-level? (thank you for your assistance regardless of the outcome)

[@carlosfaurby8363]

Entraya Korsbakke Well that's interesting. But unfortunately I haven't read his books, so I really don't know which one to recomend. I would say that the one about the Higgs Bosson is filled with quantum field theory. And the book that I'm talking about is one that I bought in a bookstore, som I'm not sure if you can get it on PDF. I will try to find Sean Carrol's books because I really want to read them. I will post a comment here if I find a PDF version.

[@Crosshill]

carlos faurby That would be utmost delightful. I did find my way into his blog, preposterousuniverse. Apparently my physicist friend likes it, so I will scour his site meanwhile

[@carlosfaurby8363]

Entraya Korsbakke Oh i didn't know he had a blog. Would you please give me a link to it?

[@RaisedBySheeps]

At 13:50, what type of variable is the question "Nonzero in empty space?" that differs in binary yes/no between all gauge bosons and the higgs boson? Is this a whole new class of Boson being represented by the possibility that the universe's empty space may have Zero or Nonzero?

[@shashankchandra1068]

kzbin.info/www/bejne/gGTbfaiQg7Cbors in this video at 1:23 there's an simulation it is called as energy density of gluon field fluctuation ,now i wanted to know is this simulation an image of one of 17 quantum fields(i.e gluon-field)?

[@Rpahut1]

It really is a great lecture.

[@AlumniQuad]

Especially the part about "David Rumsfeld" (41:25)...

[@donniecrapser4305]

@@AlumniQuad l lllllllllllllllllllllllllllllllllllllllll

[@Hexnilium]

How do we really know there are distinct fields as opposed to just one field whereby the multiple fields perspective interactions (or lack thereof) are some sort of additive/subtractive synthesis of the singular underlying field of reality?

[@larrylyons9362]

Great lecture Sean. BTW, it's Donald Rumsfeld, (not David). lol

[@higherresolution4490]

Donald "the Killing Machine", "9/11 Big Wig" Rumsfeld ...

[@gyro5d]

H is the Inertial plane, between e- H e+ and Ve H Vm. The Inertial plane has infinite capacitance.

[@qcislander]

Sean... DUDE... about that fields question you answered at 1:28:00... "A soccer field needs no balls to exist: only the players need that." :-)

[@Hexnilium]

If we could reduce the energy in the Higgs field, couldn't we technically reduce the strength of mass? Regarding the graph, it was mentioned that we could increase the energy to reduce mass, but that would require adding energy. Why not try to reduce the energy?

[@ToxisLT]

my professor liked to explain events on LHC as: imagine you take two mice by their tails, spin them to 99.99% of speed of light, smash them, and an elephant comes out.. mind you he was teaching philosophy students physics, so the examples were not terribly scientific, but they were colorful enough to blow my mind and start to love physics for the first time... this lead me to watch TTC lectures on particle physics, and quantum mechanics (Sean was the lecturer for those)

[@ToriKo_]

What is TCC? Where can I find those lectures?

[@ToxisLT]

@@ToriKo_ The Teaching Company - and you can either buy those, or find them washed up in some bays;)

[@hoogmonster]

I do hope the future particle physicists with surnames like Hard, Tamp, and O'Com each discover a new particle to add to the standard model. It won't improve the parsimony of physical theory, but lectures on particle physics will be premium comedy specials.

[@AurelienCarnoy]

Finally someone who uses Cymatics to describe space time vibrations.

[@klumaverik]

This guy is AWESOME! How am I just finding out about him?

[@crewrangergaming9582]

Because he is a real Scientist, not one of your fancy ties and bowties big-mouth celebritity scientists.

[@klumaverik]

@@crewrangergaming9582 hey! The "Guy" you speak of is pretty god damn dope too. He helps to get the masses interested in and care about science and our world. We need more people like him. There is an astro physicist named Becky you might like. She is really sweet and talks about...ya know... stars and stuff.

[@issolomissolom3589]

U will find him in the great courses plus He talks about dark energy/dark matter

[@ToriKo_]

You might love his Biggest Ideas in the Universe series freely available on youtube

[@The22on]

Sean Carroll is a national treasure, like the Grand Canyon, the Apollo moon rocket, and Pringles Jalapeño chips. If it was possible for Carroll, Krauss, Einstein, Feynman, Maxwell, Newton, and Faraday to meet, the universe wound explode in the bright light of genius. Whenever I feel that humanity sucks, I realize that it only takes a few great thinkers to save it.

[@shirleymason7697]

Nate .....oh how much some of those guys would have to learn.

[@bozo5632]

I understand (sort of) how fuzzy waves in fundamental fields can produce a discreet (at our scale) Toyota. But how do they produce such a nicely spherical, discreet electron?

[@danielturner9027]

Could someone tell me if dark matter is absorbed into black holes? Or does it just pass straight though? I think it adds mass because it interacts gravitationally. Am I wrong? let me know :)

[@jamesyboy4626]

www.universetoday.com/60422/astronomers-find-black-holes-do-not-absorb-dark-matter/

[@mriliketurkey]

E=mc² is an approximation and doesn't include momentum. Look up energy-momentum relation. That's about all I know, but I hope this helps.

[@jeffwells1255]

This guy is simply brilliant, both as a working scientist and as a public lecturer.

[@CV_CA]

Starting at 2:26

[@Set_Get]

This lecture was very informative to me. lots of thanks.I wish they had recorded this with two cameras and then had mixed it. the only camera was fixed and focused just on his face. When he points to slides pointer's motion is hidden. It would be a pity if FERMILAB too lacks resources to do this.

[@WayneRiesterer]

Wouldn't Japan be a poor choice for the ILC due to the region's seismicity? Having a tunnel in excess of 31km for the collider and supporting infrastructure is a large vulnerability footprint. What tolerance does the instrumentation have for such events in terms of accuracy and precision? How would structures be affected by ground movement? Would central Australia be a more suitable choice due to it's geological stability and huge amount of free space? There's a vast amount of underground water there too that could clean up quite nicely with a descent water treatment plant. There's also enough space and ample sunlight for a solar generation farm. It could seed a scientific community that could be rolled in with astronomical observatories, safe nuclear power generation research and application, research into efficient extractive metallurgy, waste recycling and many, many other things. Universities and research facilities could be built in the area, as well as accommodation and related infrastructure. Perhaps the mining industries could provide some incentives for investment; supported by the Australian Government.

[@James_Bowie]

Agree, but ... "Show me the money!"

[@WayneRiesterer]

​@@James_Bowie Looking at the state of the global economy, it will likely have to be done by volunteers now James :D

[@killianoshaughnessy1174]

"The values of fields in the local region that you live in are determined by their sources, but they live independently." Words to live by.

[@ludmilasakharova7672]

I adore your lecture. Thanks!

[@vidajugg]

My time theory of matter is an attempt at a deeper description of nature by thinking of an elementary particle not as a little point or a little loop of vibrating string but as a moment in time fluctuating at its ultimate extreme levels. Khalid Masood

[@JiveDadson]

Starts at 2:24.

[@2030matrix]

Outstanding presentation. I now understand the confusion between thinking of matter as particles rather than waves. I'm still a bit confused about why the waves appear as particles once they are observed/ recorded.

[@rajkumardhakad8773]

Hi sir although I'm not an expert in the subject, but is it possible to see mass of any particle/object as the energy spike in the fabric/field of space time, as we do for the other particals such as higgs boson in the higgs field.