What Are Particles? Do They ACTUALLY Exist?!

Somewhere between 1926 and 1950, we gave up the concept of particles in favor of quantum fields. In this video, I explain the motivations for that to a non-physicist: my wife.
Nick Lucid - Host, Writer, Editor, Animator
Eric Aspling - Consulting Expert, Fact Checker
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VIDEO ANNOTATIONS/CARDS
Quantum Superposition:
• Quantum Superposition,...
Older video on Quantum Fields:
• What is a Quantum Fiel...
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RELATED KZread VIDEOS
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• Feynman Diagrams and P...
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• The Secrets of Feynman...
• Solving the Impossible...
ScienceClic on Feynman Diagrams:
• Quantum Electrodynamic...
Domain of Science on Feynman Diagrams:
• How To Read Feynman Di...
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SOURCES
www.forbes.com/sites/startswi...
plato.stanford.edu/entries/qu...
General Scientific Papers:
doi.org/10.1119/1.4789885
doi.org/10.1119/1.4812316
Feynman's Papers:
journals.aps.org/pr/abstract/...
journals.aps.org/pr/abstract/...
authors.library.caltech.edu/3...
Overview of Feynman Rules:
particle.phys.uvic.ca/~jalber...
web2.ph.utexas.edu/~vadim/Cla...
www.physics.mcgill.ca/~jcline...
Fundamental Constants:
pml.nist.gov/cuu/Constants/
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LINKS TO COMMENTS
• Here are 3 ways a Mult...
• Here are 3 ways a Mult...
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IMAGE/VIDEO CREDITS
Richard Feynman Portrait:
repository.aip.org/islandora/...
Louis de Broglie:
commons.wikimedia.org/wiki/Fi...
Erwin Schrodinger:
repository.aip.org/islandora/...
Werner Heisenberg:
repository.aip.org/islandora/...
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TIME CODES
00:00 Cold Open
00:12 Getting a baseline
00:55 Matter and Light: What's it made of?
02:38 What is a Field?
04:09 What is a Wave?
05:33 What is a Quantum Field?
07:50 Quantum Fields Visualized
10:26 Feynman Diagrams Explained
12:20 Virtual Particles Explained
13:50 How to use Feynman Diagrams
15:05 Quantum Electrodynamics
18:15 What is its purposes?
18:40 Do particles exist?
19:14 Featured Comment

Пікірлер: 1 500

  • @SaniFakhouri
    @SaniFakhouri Жыл бұрын

    The "Waaoooommm" sound effect that plays everytime a 'disturbance' happens in a quantum field is fantastic.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    😂 I've been using that sound effect since the beginning of my channel. It's an oldie.

  • @Nulley0

    @Nulley0

    Жыл бұрын

    i feel like home, when i hear it

  • @prabkunvar10

    @prabkunvar10

    Жыл бұрын

    ​@@Nulley0 i can feel a disturbance in the force !!

  • @somecsguy9824

    @somecsguy9824

    Жыл бұрын

    ​@@ScienceAsylum please tell me it's just a recording of you making the sound

  • @RaphaelBrandaoS

    @RaphaelBrandaoS

    Жыл бұрын

    It gets me everytime 😂

  • @JohnSalchichon2
    @JohnSalchichon2 Жыл бұрын

    I am a student of physics, whenever I think something is impossible to explain to a physics illiterate you come and show me that it is I who is illiterate in teaching hahahahaha

  • @borabingol6797

    @borabingol6797

    Ай бұрын

    Teaching is some other ability, some have it some don’t. He is gifted with teaching.

  • @John_SalchiChon69

    @John_SalchiChon69

    Ай бұрын

    I dont think teaching is entirely an unteachable hability, but he very much has it, yes. My main surprise though is that he manages to explain things from scratch without modifying the concepts for ease of teaching, for quantum mechanichs its REEEEALLY UNCOMMON, I wouldnt believe much more channels other than this one if I were you. @@borabingol6797

  • @ashroskell
    @ashroskell Жыл бұрын

    This is such a great system of teaching, whereby the Explainer has to explain to a smart person who is not an expert. Thereby testing the Explainer’s capacity to teach and causing growth in both the audience and the teacher. Plus, it’s just a really entertaining format. We are all in the position of your wife, who is asking questions that we would ask, making her a great analogue for your audience. It’s a wonderful service you are doing for science, which deserves plaudits and recognition. Thank you for that. 👍

  • @scene2much

    @scene2much

    Жыл бұрын

    Check out Plato's Dialogues.

  • @fundemort

    @fundemort

    11 ай бұрын

    im sorry but for some reason i can't quite explain. i don't see them as a couple. again im sorry.

  • @ashroskell

    @ashroskell

    11 ай бұрын

    @@scene2much : I know them well. History is my bag, along with physics, wherein all knowledge lies. My problem is being dyslexic and innumerate, along with a mild form of autism and ADD. Consequently, I have some closer relationships with my books than with people, rather like Machiavelli toward the end of his life, or so my wife thinks. I guess I was kinda’ spelling out the obvious intention of the video’s maker, which will cause some to roll their eyes, but my intent was to help explain some of the educational theory behind this approach and touch on why it’s so important, so that any teachers who come across these videos might be encouraged to recommend them, both to other teachers and their pupils. But I also feel this guy deserves recognition as an educator. He has, over time, managed to crowbar aspects of the theory that don’t come naturally to me into my brain, in a way that many science explainers have failed to do, for which I remain eternally grateful.

  • @ashroskell

    @ashroskell

    11 ай бұрын

    @@fundemort : You needn’t believe in their relationship in order to get the science, or be entertained by the videos, so it’s not something you need apologise for, son. They have shared their wedding photos and other evidence of their marriage, in previous videos. But, “believing,” in their marriage is not a, “them,” or a, “me,” problem. Why do you care?

  • @fundemort

    @fundemort

    11 ай бұрын

    @@ashroskell so many assumptions you made there. 1. do i look care? i said i can't explain why, so it's a first impression not a "care" judgement. 2. they really don't seem like a couple they seem more like co-workers. or like a professor to his master or phd student. its not a bad thing though. in fact it could be a good thing. it proves they are able to separate their personal and work life very well. 3. did my comment sound like i make it a problem to you? because i already said sorry. also 4. which part did i say i didn't get entertained or get the science?

  • @thomziq
    @thomziq Жыл бұрын

    I'm still in shock because of how underappreciated this channel is compared to the quality of content it has! Keep up the good work! :D

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks!

  • @ronnyvbk

    @ronnyvbk

    Жыл бұрын

    Fully agree and I feel ashamed I m not giving enough attention to this channel lately, it is in fact the channel that turned me into viewing YTvids but nowadays I have so much subscriptions I can't view all content generated. I need to get my priorities sorted out! Great lesson and great format Nick and AkwardM!

  • @zbop220
    @zbop220 Жыл бұрын

    Ive watched lots of documentaries, read articles and books, scientist interviews and youtubers. You have done the most to supply critically missing puzzle pieces that clarify the picture, make things make sense, and make me say "OOH!" Its the little details.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    That's great! I'm so glad I've helped 🤓

  • @ericeaton2386

    @ericeaton2386

    Жыл бұрын

    Same here! In this video in particular, emphasizing that virtual particles and anti-matter going backwards in time are just mathematical tools was very helpful.

  • @esra_erimez

    @esra_erimez

    Жыл бұрын

    Same for me too.

  • @81giorikas

    @81giorikas

    Жыл бұрын

    @@ScienceAsylum But what was the first field and who disturbed it in the first place? Then you model particles with fields consisting of harmonic oscillators of...what? Other mini particles connected by something? How do they touch one another/propagate (distrurbance etc). Reductionism? Again? Is something usefull going to be built out of all of this?

  • @randomdosing7535

    @randomdosing7535

    Жыл бұрын

    ​@The Science Asylum this episode was great. I felt that i have a private tutor teaching me. Felt lot more like we are talking in person.

  • @kwaherikwasasa
    @kwaherikwasasa Жыл бұрын

    Feynman was once asked if he could explain Quantum Electro Dynamics so that a lay person could understand it, and he replied, "No." As a certified lay person, I can say you have made some progress in that direction. Also, I have read most of Feynman's books, and they are extremely readable for those of us who are fascinated by the topic but have had nothing more than high school calculus. He was a fascinating person.

  • @g3mck120

    @g3mck120

    2 ай бұрын

    Feynman did write a little book in 1985 titled "QED" that gets pretty close to a layman's explanation. But in the 39 years since thee best explanations have gotten even clearer. This is one of the very best.

  • @serronpdub
    @serronpdub Жыл бұрын

    The episodes when you explain quantum mechanics to your wife, are by far my favorite uploads. I would love to have her add in her comments/thoughts in a bubble or something into your normal uploads. Does not have to be many. Maybe 2-4 per episode.

  • @davidkfreeman6107

    @davidkfreeman6107

    Жыл бұрын

    I agree. she ask the very questions I want to ask. makes it easier for me to understand. And it's entertaining. LOL

  • @DrDeuteron

    @DrDeuteron

    Жыл бұрын

    my wife has a phd in nuclear physics from the no. 1 ranked school, so it's not so fun for me.

  • @paulmendoza9736

    @paulmendoza9736

    Жыл бұрын

    Nick's wife is much cooler than Nick himself. Although I think I am in love with how he explains things.

  • @viralsheddingzombie5324

    @viralsheddingzombie5324

    Жыл бұрын

    StopAskingMyName, Please identify yourself.

  • @N73B60

    @N73B60

    Жыл бұрын

    it's the interaction between a noob and an expert that makes great videos

  • @abdullahkor5465
    @abdullahkor5465 Жыл бұрын

    Well, I think I really needed a video like this. Things get very weird at quantum level and thus you can't be sure what's going on. You made my day sir, thanks!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    With weird topics like this, it's really helpful to have someone in the room so I can see where the specific mental obstacles are for those who haven't seen it before.

  • @Lucky10279

    @Lucky10279

    Жыл бұрын

    @@ScienceAsylum It's also fun listening to your interactions with each other. You guys have such good chemistry and I hope you do more videos together like this. Might even be fun to switch things up occasionally and have her explain weird biology stuff to you.

  • @oldmech619

    @oldmech619

    Жыл бұрын

    Think of the quantum wold as a far out religious cult that has completely lost touch with reality. As long as they stay in their broom closets, we are all safe.

  • @furqanshariff
    @furqanshariff Жыл бұрын

    The competitive advantage he has above other youtubers is that, he is clear of what he is saying even during an explanation, which makes us think it is easy to understand

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    I don't want there to be any miscommunication.

  • @-_Nuke_-

    @-_Nuke_-

    Жыл бұрын

    @@ScienceAsylum Hey Nick! Have you seen or know about another theoretical physicist and KZreadr named Andrezj Dragan? In one of his videos, named "Quantum Principle of Relativity episode #9" he explains how we could possibly use faster than light travel from special relativity, to explain things in quantum mechanics, ultimately bridging the gap between the two... What are your thoughts on that topic or on what prof Dragan has to say?

  • @Samu2010lolcats

    @Samu2010lolcats

    Жыл бұрын

    ​@@-_Nuke_- That's not new, Quantum Field Theory already uses Special Relativity. The problem is with General Relativity.

  • @PatricioHondagneuRoig

    @PatricioHondagneuRoig

    Жыл бұрын

    ​@@ScienceAsylum you're doing an amazing job at simplifying such a complex body of knowledge to make it fit in our monkey brains 😎

  • @ogi22

    @ogi22

    Жыл бұрын

    @@ScienceAsylum You just took a page out of Feynmans book about how to understand and explain things. And i think he should get another Nobel for "theory of explaining things" 😁

  • @tkgsingsct
    @tkgsingsct Жыл бұрын

    Your wife asks my questions!! Super helpful for folks not great with math, thanks for this channel. I think this is the first time I've been confident I have a basic grasp of what quantum field theory actually is (and I'm rather dense, that's a big deal!). 😊

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    I'm glad we could help 🤓

  • @wefinishthisnow3883
    @wefinishthisnow3883 Жыл бұрын

    I just wanted to say that I love that despite having over half a million subscribers, Nick actually reads and responds to so many of the comments. Another great video Nick!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    I like interacting with people and I try to keep my comment section a friendly place to be for everyone. It's like an extension to the learning. I learn stuff from the conversations too.

  • @wefinishthisnow3883

    @wefinishthisnow3883

    Жыл бұрын

    @@ScienceAsylum ^ You see everyone? This is what I'm talking about! One of many reasons we love you Nick!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    @@wefinishthisnow3883 I see _most_ of the comments, but I'll admit I might miss one or two now and then. There are a lot of comments. Sometimes the comment doesn't warrant a response. Other times I don't know the answer to the question their asking. But I try to at least _read_ them all.

  • @johnharriott7878
    @johnharriott7878 Жыл бұрын

    It’s mind bending to think the entire universe, including us are just disturbances of energy fields. Truly amazing

  • @MrPooPooJohn
    @MrPooPooJohn Жыл бұрын

    I love when you and your wife do videos together.

  • @7177YT
    @7177YT Жыл бұрын

    Very instructive! The laid back vibe made it so much more watchable. Thank you!

  • @philochristos
    @philochristos Жыл бұрын

    Nick, you are an exceptional communicator, and your wife is such a good sport.

  • @alexandreneo888
    @alexandreneo888 Жыл бұрын

    This format is amazing. Congrats! You clarified a ton in s single video in a very comprehensive way. Easily this is your best video EVER! ❤

  • @SoundzAlive1
    @SoundzAlive1 Жыл бұрын

    Nick and Mrs Nick, thank you for explaining the hardest things that most people try to understand. Please keep this format as the Q & A helps answer some questions we ask and keep us entertained. André in Sydney

  • @vog51
    @vog51 Жыл бұрын

    I've been a fan of your videos for years now. Even though I don't fully understand everything you say, it's still fun to watch you explain them. Keep the videos coming!

  • @mcnugget9999
    @mcnugget9999 Жыл бұрын

    I really enjoy these quite a bit when you bring your other half on. Nice to see. Thanks for the content!

  • @oliveralmonte826
    @oliveralmonte826 Жыл бұрын

    Wow! I truly enjoyed this episode. It was so amazing. Thanks a million for enlightening us.

  • @Muladeseis
    @Muladeseis Жыл бұрын

    I liked the animation of the Feymann diagrams rotating, very explanatory.

  • @LudusYT
    @LudusYT Жыл бұрын

    This was one of my favorite videos you've done. Really well thought out and great questions that allowed you dive deeper into some nuances of QFT! Great video!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks!

  • @gfsandy
    @gfsandy Жыл бұрын

    Very engaging discussion. I love the way you two communicate with the side effect of teaching me more effectively.

  • @joshuascholar3220
    @joshuascholar3220 Жыл бұрын

    Best video on Feynman diagrams, and I've seen them all. Having your wife there to explain things to seems to have inspired you to explain things much better.

  • @ronnyvbk

    @ronnyvbk

    Жыл бұрын

    For me it is the first time I understand a bit what Feynman diagrams are actually about.

  • @mitch_the_-itch
    @mitch_the_-itch Жыл бұрын

    Youre my favorite nerd. All of the different versions of you. Its cute you buy them each their own book "Lectures on Physics" instead of reading it three time's. Your wife seems cool too.

  • @baptistebauer99
    @baptistebauer99 Жыл бұрын

    I LOVE these episodes where you explain things to your wife. It reminds me of Physics Girl's "explaining to my editor" series (wishing her a fast and complete recovery), but you have a much calmer approach. These are incredible.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks! (I even had on a Physics Girl shirt for this one.)

  • @baptistebauer99

    @baptistebauer99

    Жыл бұрын

    @@ScienceAsylum That's true!! I didn't even notice :D nice attention to details

  • @jamespottschmidt3883
    @jamespottschmidt3883 Жыл бұрын

    Well done! I appreciate this format!

  • @camielwijffels
    @camielwijffelsАй бұрын

    I love the part where you describe the Quantum Field Theory, and for that matter any science, as "a tool to solve problems" (16:32), and the only way you know it is correct because "it gives us answers that match reality" (16:46). For that is what, I think, science is really about. Making progressively more refined models of reality 1. to predict the future more closely, 2. describing/explaining reality more correctly, 3. enlarging our knowledgebase, 4. fidning solutions to current problems, etcetera. Thanks for this beautiful insight.

  • @markwarburton8563
    @markwarburton8563 Жыл бұрын

    The best simple explanation of Feynman diagrams I've seen. Awesome!

  • @dpactootle2522
    @dpactootle2522 Жыл бұрын

    These videos are great for students. Explaining physics to a natural person that knows nothing about the new subject and can ask questions and you have to keep trying until the person (and the rest of us) gets it. Fantastic!

  • @narfwhals7843
    @narfwhals7843 Жыл бұрын

    I really like this format. M does a really well keeping the theroetician in check. And Nick does a good job setting up the conversation.

  • @SmashXano
    @SmashXano11 ай бұрын

    Thank you for the animation of Feynman diagrams. Finally I feel more comfortable with the time axis being vertical. It is also kind of heartwarming how your wife said your slogan at the end. Made me smile, that she acknowledges and enjoys your own creation - the science asylum and its values and motivations - in that way.

  • @daniellewilson8527
    @daniellewilson8527 Жыл бұрын

    I love the way you explain things. You are clear and concise. You define your terms. I wish more of us could explain things as effectively as you.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks. I'm glad you appreciate it. I put a lot of effort into these explanations.

  • @bdrobe2
    @bdrobe2 Жыл бұрын

    Nick, somehow you always break physics down to where I can actually understand it. You truly have a gift for teaching. I am as impressed by your communication skills as I am with the actual physics. Way to go man! Thank you for all your hard work!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks! I put a lot of effort into choosing the correct words.

  • @badmeatbrowniesthoughts1327
    @badmeatbrowniesthoughts1327 Жыл бұрын

    Great stuff. Hi Em!!👋 we've missed ya!! I listened several times at work before I got home and watched it. The photon being it's own "anti partical" hurts my brain 🧠..Great stuff as always. Always fascinating 👏..and I'll take the "long form" uploads all day long.

  • @antoniomagana8280
    @antoniomagana8280 Жыл бұрын

    Thanks to your contagious follies I have finally managed to grasp some of the basics that govern the rules of Feynman diagrams! Thank you for increasing my crazy level!

  • @greg4367
    @greg4367 Жыл бұрын

    Thank you Nick and thank you to your wife, whom I've come to think of as my avatar. When she is asking you questions I feel like those are also my questions. Great video.

  • @anonymizationoverload9831
    @anonymizationoverload9831 Жыл бұрын

    The Feynman diagram animations seem so nice for some reason, I just love the bright-but-not-eyestrainy yellow and pink on top of the really nicely textured gray background x) Nice video! I learned something new today :D

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks! It was really important to me that they look aesthetically pleasing, so thanks for noticing.

  • @jackchalloner5019
    @jackchalloner5019 Жыл бұрын

    Amazing. Great idea, well executed. Keep on doing what you're doing!

  • @samarthpatil2053
    @samarthpatil2053 Жыл бұрын

    First view❤ I've been following your videos from a long time and I've been benefitted a lot... I've gain more knowledge through your channel... I really like ur humor a lot... Thanks brother❤😊

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    You're welcome. I'm glad you've found my work enlightening 🙂

  • @MasterHigure
    @MasterHigure Жыл бұрын

    For anyone who wants more, I suggest looking up the Douglas Robb memorial lectures by Feynman himself. He does regular quantum dynamics as well there, but in lecture 3 he goes a little bit deeper into this video's topic (quantum electrodynamics), but staying at more or less the same level of difficulty / abstraction. (Maybe a bit more concrete in its calculations, and it builds upon the former two lectures, so it's not a bad idea to watch those as well.)

  • @stevealikonis9467
    @stevealikonis9467 Жыл бұрын

    for most of this channel you break higher concepts down into simpler parts. in this video, the safeties are off. love the honest breakdown w/o holding my hand along the way!

  • @nizarsmart2119
    @nizarsmart2119 Жыл бұрын

    This is impressive! Just WOW! I really enjoyed it! Probably your best video yet!

  • @connorwicks6647
    @connorwicks6647 Жыл бұрын

    You should do a part two of this video on the types of infinities in QFT and the difference between renormalization and non-renormalization theories. I really enjoyed this and it made QFT entirely approachable.

  • @twowheelies8726
    @twowheelies8726 Жыл бұрын

    Thank you so much for this video, I have been thinking about this question for so long now.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    You're welcome. Glad it helped 👍

  • @nataliebuchinsky8559
    @nataliebuchinsky8559 Жыл бұрын

    Truly, without a doubt, one of the best videos on this topic I've watched. THANK YOU!!!!

  • @TdK-eskAeR
    @TdK-eskAeR8 ай бұрын

    Remember in school when they taught us how a 3D object passing through a 2D realm would look? These particle fields remind me of that. 🤔

  • @arwah97
    @arwah97 Жыл бұрын

    Wow.. thanks for making Feynman diagram more understandable, Nick! btw.. your Alvarez could use fresh set of strings 😁

  • @sjzara
    @sjzara Жыл бұрын

    Awesome. What I would love to see is some idea of what is involved in “calculating a Feynman diagram”. It’s clearly computationally expensive and I have never seen explained what’s actually happening in the computing.

  • @gary1anderson
    @gary1anderson Жыл бұрын

    Thank you for the virtual gentle walkthrough of a very real complex topic.

  • @TL-angzarr
    @TL-angzarr Жыл бұрын

    I love your easily digestable explanations, especially when it comes to less intuitive subjects.

  • @collin4555
    @collin4555 Жыл бұрын

    "Matter is real, it's not an illusion" That's exactly what an illusion would say

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    😆

  • @andriikulenko

    @andriikulenko

    Жыл бұрын

    The illusion EXISTS and it can speak?

  • @Tokhaar
    @Tokhaar Жыл бұрын

    I loved this episode, the pace of the explanation was right, and it made sense, the questions were on point. I loved the humor and the interactions between the two of you, it made me feel like I'm sitting there with you and laughing along. Thank you both, wish you the best

  • @sylvioufba
    @sylvioufba Жыл бұрын

    Man, I have no words to describe how amazing your channel is. Your content is just super dope. Please never stop. Cheers from Brazil

  • @Piedog769
    @Piedog769 Жыл бұрын

    Might be the first video I’ve watched from this channel. I really like the teacher/student dynamic and the skepticism she brings. I doubt I’ll ever understand quantum mechanics fully so the questioning throughout helped me to better understand rather than just nod my head yes while the information goes over my head. Awesome work!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks! It's not the style of every video, but I try to do 1-2 of these per year when the topic demands it.

  • @Miguel_Noether
    @Miguel_Noether Жыл бұрын

    🤯 You have reached the top of the science youtube channels 👏👏

  • @0-by-1_Publishing_LLC
    @0-by-1_Publishing_LLC Жыл бұрын

    (7:45) Your animation skills are spot-on, my friend!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks! I had to learn how to use nodes in Blender for that ripply surface animation.

  • @alexvilonyay8597
    @alexvilonyay8597 Жыл бұрын

    I absolutely love these episodes! Crazy for life! Keep up the good work the both of you

  • @Dominis.
    @Dominis. Жыл бұрын

    Thank you! I was just wondering about something similar. This was a nice refresher course

  • @Culando
    @Culando Жыл бұрын

    Always love to see Awkward M make an appearance. Also a nice explanation of a concept I like to think of as "keep throwing science at the wall to see what sticks." Even if it doesn't make sense and has ideas that are bonkers (like anti-matter travelling backwards in time) if it leads to a workable conclusion, it was still worth the time to think about it.

  • @calyodelphi124

    @calyodelphi124

    11 ай бұрын

    Fortunately, the bonkers idea of antimatter being time-reversed matter is just a shut-up-and-calculate tool that works because of the symmetries of nature! When you "time-reverse" an electron on a feynman diagram, the other properties that also flip signs are its charge and spin, which bingo boingo turns it into its antimatter complement! :D It's a simple idea that feynman had that tremendously simplified the math of QCD interactions.

  • @yyattt
    @yyattt Жыл бұрын

    "I'm not hear for that, but ok" is exactly how I feel about particles being their own anit--particles. Like if photons are their own anti-particle why aren't we seeing them annihilate each other all the time?

  • @mrgalaxy396

    @mrgalaxy396

    Жыл бұрын

    The short answer is: because maths. Antiparticles are the same distrubance in a quantum field as regular particles. They have the same properties and same quantities for those properties with very minor differences. Antiparticles and particles even being different things is a direct result of the mathematical symmetries that describe the field. The reason particles and antiparticles annhilate is because they have opposite values for some property and when you add them together you remove the entire distrubance in the field and get a vacuum state. That opposite value is a result of a symmetry used tk construct that field mathematically. However, due to the way the photon field is constructed, a different symmetry result is achieved making the photon and antiphoton be the same thing, aka the photon, because mathematically they have identical properties. So there is nothing to cancel each other out mathematically here, so no annhilation. In fact, photons don't even interact with each other at all, they just pass by through each other. It's a rather peculiar field.

  • @localverse

    @localverse

    Жыл бұрын

    ​@@mrgalaxy396 there's gotta be a reason that isn't about math since the universe simply has reactions and doesn't do math!

  • @yyattt

    @yyattt

    Жыл бұрын

    I feel like "photons are their own anti-particle" is the result of someone being really proud of their discovery that all particles have an anti-particle then discovering that it doesn't work for photons.

  • @mrgalaxy396

    @mrgalaxy396

    Жыл бұрын

    @@localverse Math is just a model, an abstraction of underlying principles. These particles obey certain symmetries, we can measure and check those symmetries and see how well the model predicts them. The symmetries that photons obey when accounted for in the mathematical model produce an antiparticle identical to photons themselves in this model. The universe doesn't do maths, but it adheres to some set of axioms and we can model them into math, with some assumptions.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Definitely read @@mrgalaxy396 's comment if you want a detailed answers. Here's the quick answer though: Some particles have charge and some don't. There are many types of charge (electric, color, weak, etc.). Antiparticles have opposite values in all those charges. A photon doesn't have any charges, so the only opposite for it to have is spin _orientation,_ which isn't enough to make the anti-photon its own particle. It's just a photon in a different orientation.

  • @chopper3lw
    @chopper3lw Жыл бұрын

    DO MORE OF THESE! This was great.

  • @garyfilmer382
    @garyfilmer382 Жыл бұрын

    Great video, with the the best explanation of Feynman Diagrams I have seen, thank you.

  • @yves4360
    @yves4360 Жыл бұрын

    Oh man! I love the wife reacts! You 2 are amazing together! Like Bert and Ernie, C-3PO, R2-D2, Batman and Robin, Beavis and Butt-Head, Marlin and Dory, Bonnie and Clyde,... Yeah! Add Nick And AwkwardM to that list!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Glad you like them. We enjoy making them.

  • @erikziak1249
    @erikziak1249 Жыл бұрын

    I really like this format of videos. Your wife is a gem, much better than any of those "clones" of you. 🙂 Great video, but I doubt that the "3D" animation of fields would be hard to process, if done correctly. I have an idea of how it could look like using a 3D lattice rendering.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    If you did it with the lattice approximation, you _might_ be able to pull it off. You just wouldn't have a suppressed dimension to use, so you'd have to get creative with colors and textures.

  • @viralsheddingzombie5324

    @viralsheddingzombie5324

    Жыл бұрын

    I suspect Nick's wife is posing as his clone.

  • @mrgalaxy396

    @mrgalaxy396

    Жыл бұрын

    I've seen the 3D animations and it looks like a cube of jiggly multicolored mess. Not the most intuitive thing to look at if you aren't used to multivariable graph representation.

  • @Lucky10279

    @Lucky10279

    Жыл бұрын

    @@ScienceAsylum There are Python libraries for domain coloring, which I imagine would automate the process of adding color to represent the 4th dimension.

  • @localverse

    @localverse

    Жыл бұрын

    Any close examples or hint of what that might look like?

  • @parva777
    @parva777 Жыл бұрын

    Buddy this was so good ! I wished you give us a 1h long video on this subject (without equations please) !

  • @KristianWontroba
    @KristianWontroba10 ай бұрын

    This video really helped me understand what is likely going on with the particles and how they interact. Love the videos with both of you on there! ❤

  • @ScienceAsylum

    @ScienceAsylum

    10 ай бұрын

    Glad we could help.

  • @nullbeyondo
    @nullbeyondo Жыл бұрын

    I always thought of particles in "concept" as point fields. And also always thought that if a wave was high frequency & concetrated enough to the point of being too small due to the wavelength being too short, it could behave like a particle. Anyways, I'mma watch the video right now.

  • @DrDeuteron

    @DrDeuteron

    Жыл бұрын

    but a massive particle at rest has a high frequency (Mc^2/h), and a long (infinite) wavelength = h/sqrt(E^2 - (mc^2)^2*) = h/0.

  • @sashwattanay
    @sashwattanay Жыл бұрын

    When Nick talks to his wife, I realize that he is actually a normal person, and not a crazy, hot-headed scientist.

  • @plausible_dinosaur
    @plausible_dinosaur Жыл бұрын

    Wonderfully clear as usual. I especially liked the way you were clear that the mathematical use of fields does not represent the actual mechanism of particle interaction, it is just the mathmatical technique for description.

  • @entropyachieved750
    @entropyachieved750 Жыл бұрын

    Every time I watch on of these videos I find a new way at looking at things. Thanks

  • @opossumoutlaw7534
    @opossumoutlaw7534 Жыл бұрын

    I absolutely love these videos you do with your partner!

  • @narfwhals7843

    @narfwhals7843

    Жыл бұрын

    @@RS-ls7mm Wives are partners and one should not just assume marital status.

  • @RS-ls7mm

    @RS-ls7mm

    Жыл бұрын

    @@narfwhals7843 What a loveless term.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks! They're a lot of fun 🤓

  • @narfwhals7843

    @narfwhals7843

    Жыл бұрын

    @@RS-ls7mm A If you want to argue terms "wife" comes from words meaning either literally just "woman" or something like "servant". Love is what you make of it.

  • @opossumoutlaw7534

    @opossumoutlaw7534

    Жыл бұрын

    @@RS-ls7mm it's a shortening of "life partner", which i think is very nice :)

  • @desudesudesu5326
    @desudesudesu5326 Жыл бұрын

    Got a QFT exam coming up. Even though they'll probably be after my exam, I'd still be interested in more videos on QFT. I rarely ever get a broader view of what's going on when I'm 2 hours into a lecture seeing the integral over momentum space divided by (2*pi)^3 for the hundredth time. EDIT: I passed.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    There will definitely be more QFT videos. I'm learning it as I go. This was just the beginning.

  • @JohnSalchichon2

    @JohnSalchichon2

    Жыл бұрын

    @@ScienceAsylum I thought you were a physicist wtf well then, all the more impressive

  • @joeheafner2495

    @joeheafner2495

    Жыл бұрын

    @@JohnSalchichon2 Physicists have to learn things too. It’s not the case that every physicist specializes in every subdiscipline of physics.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    @@JohnSalchichon2 I _am_ a physicist. I just never had the opportunity to learn QFT properly. During physics education, you learn a kind of overview of everything and then you specialize in something specific. I imagine a lot of other academic fields are like that too. If we want to deeply learn anything beside our specialization, we have to learn it ourselves and I just never got into QFT before now 🤷‍♂

  • @kasimsuleymani1370
    @kasimsuleymani1370 Жыл бұрын

    Thanks for this great vide, it answered a number of questions that I had on this topic for a while. If possible please do a follow-up one. I would really like a separate video about Feynman diagrams

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    This was just the beginning of a playlist I'm hoping to build out. There will be more QFT videos.

  • @scottinharwood
    @scottinharwood Жыл бұрын

    OK, this is your best overview of QED yet. I loved this video. Your'e other videos tended to loose me in a plethora of unanswered questions that I did not know that I needed to ask before each video. Now, all you ahve to do is start here, with this video, and then reorder all the previous videos so they naturally stem ftom this one - easy riight!? ;)

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    I'm hoping to do some more QFT/QED video over the next year and organize them into a playlist. This video is just the beginning.

  • @jjjscharf8059
    @jjjscharf805911 ай бұрын

    Excellent explanation of QFT and the commonly used term "wave". This made more sense to me than many of the other explanations I've seen. Love the channel content!

  • @MessedUpSystem
    @MessedUpSystem Жыл бұрын

    For me one of the weirdest concepts in QFT is that the very existence of particles is observer-dependent (Unruh effect)

  • @mrgalaxy396

    @mrgalaxy396

    Жыл бұрын

    It's not surprising when you consider that all observations in QFT are essentially just interactions with particles. Meaning when you are observing a field, you are affecting it and introducing additional distrubances. Otherwise how else can you observe something if you don't interact with it? You become coupled with that field so what you perceive is a result of you affecting that field, or rather that field being disturbed by your interaction with it.

  • @favesongslist

    @favesongslist

    Жыл бұрын

    @@mrgalaxy396 Very helpful comment TY

  • @MessedUpSystem

    @MessedUpSystem

    Жыл бұрын

    @@mrgalaxy396 Well that is like saying the Uncertainty Principle is not surprising hahaha, yeah I agree with you that once you understand the process and think about it that is the only logical conclusion, but it IS a surprise when you see it for the first time, unless you're someone that actively researches the area prior to seeing it for the first time xD

  • @JackAdrianZappa
    @JackAdrianZappa2 ай бұрын

    What an excellent description! Thanks so much!

  • @ScienceAsylum

    @ScienceAsylum

    2 ай бұрын

    You're very welcome!

  • @LoveCoffee123
    @LoveCoffee1239 күн бұрын

    Love that you got those Feynmann Lectures on Physics series in the background

  • @sirlancelot6333
    @sirlancelot6333 Жыл бұрын

    Professor Lucid, I am studying thermodynamics and I am having a very hard time understanding the concept My problems have a lot of roots. One of them is that I can't understand the relationship between total work and ∆K Since I can't still understand that I am having trouble understanding some formulas in thermodynamics too Do you have any suggestions? What do you think I should do? I tried searching for it but I kept getting more confused

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thermodynamics is a lot to take in all at once. I found it helpful to learn the historical motivation behind all the equations. We came up with many of them before we even knew for sure that atoms existed and were made of subatomic parts. Once we knew that, we started to look at it all statistically and that made everything make a lot more sense.

  • @mrgadget1485

    @mrgadget1485

    Жыл бұрын

    What is K in your calculation?

  • @sirlancelot6333

    @sirlancelot6333

    Жыл бұрын

    @@mrgadget1485 Kinetic energy

  • @sirlancelot6333

    @sirlancelot6333

    Жыл бұрын

    @@ScienceAsylum Thanks you so much ☕🍂

  • @narfwhals7843

    @narfwhals7843

    Жыл бұрын

    @@sirlancelot6333 It sounds like your system has several degrees of freedom. Work can be done on it and this energy may go into other things than linear kinetic energy, like rotation(rotational energy) or the stretching of a spring(potential energy).

  • @eduardoGentile720
    @eduardoGentile720 Жыл бұрын

    I would love to see awardM guiding you into biology honestly

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    We've considered it, but we're not sure very many people feel like you do.

  • @marceldifoggi

    @marceldifoggi

    Жыл бұрын

    ​@@ScienceAsylumoh, but we are many, sir. this collab might sound crazy, but then again, it's ok to be a little.

  • @flutte1974
    @flutte197411 ай бұрын

    Now I got it! The quantum fields and wave/particle duality just made sense to me! Thanks! 😊

  • @rgmartinez
    @rgmartinez Жыл бұрын

    Great introductory explanation! I love these videos...

  • @martj1313
    @martj1313 Жыл бұрын

    I somehow feel both smarter and dumber after this.

  • @chyldstudios
    @chyldstudios Жыл бұрын

    You should have your wife in more of your videos.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    I'd like to do these twice per year, but that doesn't always work out. (We actually recorded one last October, but it quickly became clear that after a few very good questions from her, that I didn't understand what I was trying to explain. The topic got postponed.)

  • @bradchun21
    @bradchun214 ай бұрын

    I finally understand the diagrams now. thank you so much. I've never had it explained to me that way

  • @willywalter6366
    @willywalter6366 Жыл бұрын

    Awesome job! First time I got the feeling that I understood a bit about Quantenphysics ❤

  • @Itallcostsmoney
    @Itallcostsmoney Жыл бұрын

    This is phenomenal. Thank you both so much!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Thanks! Glad you enjoyed the conversation.

  • @MISTER__OWL
    @MISTER__OWL Жыл бұрын

    Haven't seen your content in a while glad you're still doing it.

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    Yep, I've been making it consistently. I must not have been making videos about topics you're that into.

  • @MISTER__OWL

    @MISTER__OWL

    Жыл бұрын

    @@ScienceAsylum KZread doesn't seem to show me any videos that I'm into lately.

  • @BritishBeachcomber
    @BritishBeachcomber Жыл бұрын

    Hi crazy. I love the new format, where you explain concepts to your wife. It helps you to focus on explaining things to people who are new to science.

  • @busterbrown2905
    @busterbrown2905 Жыл бұрын

    This was a great explanation on field theory. Your videos the best

  • @CharlieSolis
    @CharlieSolis10 ай бұрын

    This was so well made! Thank you for this! ❤️‍🔥🙏

  • @ScienceAsylum

    @ScienceAsylum

    10 ай бұрын

    Glad you enjoyed it! 🤓

  • @CharlieSolis

    @CharlieSolis

    10 ай бұрын

    @@ScienceAsylum more please 🤓👨‍🔬🦾⚡️❤️‍🔥🙏

  • @user-vt9iu5pw4u
    @user-vt9iu5pw4u Жыл бұрын

    the best video.ur wife represent us with all her questions thanks for all the information

  • @WallyMast
    @WallyMast Жыл бұрын

    Great format, the discussion/explanation format. Plus, your wife is very funny.

  • @nigeldepledge3790
    @nigeldepledge3790 Жыл бұрын

    This was a good one! I almost feel like I can begin to grasp the basic ideas of QFT. But without the calculations. This sort-of reminds me of a chemistry lecture I attended as an undergrad. It was part of a third-year chemistry module, and the lecturer was explaining what was happening *during* a chemical reaction. My degree was biochemistry with chemistry (so about 2/3 biochemistry and 1/3 chemistry), and this module was attended by many of the straight-chemistry students. I think I was the only biochemist there. Our lecturer at one point made an allusion to ab-initio molecular orbital calculations, and the reaction of those who had previously encountered this phenomenon was a mixture of terror and resignation. Fortunately for me, the lecturer did not have us actually do any ab-initio molecular orbital calculations. I gathered that they're kinda tough.

  • @shocktocker8282
    @shocktocker8282 Жыл бұрын

    YOU GUYS r awesome!- excellent video. Keep up the GREAT work ! I'm not a scientist, however, you have helped me understand some of the material! Love it!!!!

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    That's great! I'm glad we could help 🙂

  • @arunsrinivasa8643
    @arunsrinivasa8643 Жыл бұрын

    The definition of quantum fields as "existence" was very nice. We are all just transcient undulations or attributes of universal "existence" wow! You are my most trusted expositor of physics . I love the way you care about the details. Keep going.

  • @Radar23
    @Radar23 Жыл бұрын

    Always the best content, I wish you had time to post new content every day.. Absolutely my favourite physics teacher ever

  • @ScienceAsylum

    @ScienceAsylum

    Жыл бұрын

    I wish I could make stuff more often too.

  • @gusmore26
    @gusmore265 ай бұрын

    This is the first time I've seen an explanation that matches the answers I came up with to get away from those 'flat & separate fields' of all the other explanations I've seen. I'm not a physicist nor even a scientist, so it nice to have confirmation and to learn a little more too. Thank you for making this video.

  • @dragonbmgo
    @dragonbmgo3 ай бұрын

    You deserve more subs! This conent is very interesting and fascinating. This channel is very underrated..

  • @ScienceAsylum

    @ScienceAsylum

    3 ай бұрын

    Thanks!