Strong Interaction: The Four Fundamental Forces of Physics
Part one of a four part series on the fundamental forces (or interactions) of physics begins with the strong force or strong interaction - which on the small scale holds quarks together to form protons, neutrons and other hadron particles.
Hosted by: Hank Green
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Suddenly, a flicker of deep comprehension. It's as if I had completely metabolised this information, taken it into my deepest awareness and so strengthened my emotional connection to the whole universe. Aaaaaaand it's gone.
@clarkkent6035
9 жыл бұрын
We could rehash it at my place with a bit of strong force
@dejureclaims8214
9 жыл бұрын
Clark Kent I'm afraid I've formed a bond elsewhere.
@TzMDx
9 жыл бұрын
BUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUURN Oh my god you have an amazingly huge forehead
@bobbysmith5262
9 жыл бұрын
***** hahaha!
@noahevans
9 жыл бұрын
your poetry is bad. and you should feel bad.
When I first studied Physics in 1980... this was considered "fringe" theory and not generally accepted fact... amazing how science has changed in 35 years..
@rianmh69
9 жыл бұрын
Well now there's only 2 forces strong-weak-electro and gravity
@MrFlameRad
5 жыл бұрын
@@rianmh69 gravity isn't even a force anymore
@adityak2629
4 жыл бұрын
@@MrFlameRad really,I don't think so
@haveaniceday7950
4 жыл бұрын
Aditya khodke since when?
@pavlova7408
4 жыл бұрын
correction *40years ;)
It finally happened! one of my professors used a scishow video in a class! (this series specifically) I am way too happy about this!
@toasterstrooder8628
7 жыл бұрын
I actually found out about Scishow through my Physics teacher showing this in class!
@pigeonlove
3 жыл бұрын
Classroom time is when THE TEACHER is paid to teach. They are not supposed to be paid for time showing videos, they should refer you to watch third party sources at home. And btw, a professor is a teacher at a university not a school.
@ajhietanen644
3 жыл бұрын
@@pigeonlove ... I was in university... That's why I used the word professor... because they were a professor... in a university. You're obviously trolling but omg dude. And if anyone reading this cares (since Kipper probably doesn't) yeah, teachers are meant to teach, if a video helps them do that then why shouldn't they show it to their class. This has visuals and examples that they can't exactly draw on a chalkboard. My Professor (who was at a university that I went to) showed us the video and then went on to explain some of the finer details. It's a tool to help teachers teach and help people learn.
@pigeonlove
3 жыл бұрын
@@ajhietanen644 'visuals' you mean the three circles red blue and green! Face it, this isn't degree level, your 'professor' is lazy af and your university is rubbish.
@ajhietanen644
3 жыл бұрын
@@pigeonlove shh, it's okay, you're allowed to not like things. You don't have to throw a fit about it for people to understand you have feelings and opinions.
The force is strong with this one!
@unkeptmoss3285
9 жыл бұрын
You just made my day!
@that_guy_lem1732
4 жыл бұрын
Bloody brilliant mate. Have a like, good sir!
1) Thank you Hank for uploading these videos, this really helped me out with my revision for my exams. 2) My faith in my physics teacher just went through the floor because I learnt more about the Strong Force, Quarks, and the Nucleus in 6-7 by watching your videos than I did in the year I had with her.
I just gotta say, I really appreciate you keeping these videos right around 4 minutes. That is honestly about how long my engaged attention span is, even though I will watch dozens of these videos. So thank you (all the people involved at Scishow) for making these awesome, concise, and informative videos. Nerdfighteria ftw! :D
This is a life saver because for a physics assignment I need to summarize the 4 fundamental forces in nature and these videos are the only way I can understand these concepts!
Hank if you're going to cover the EM force then you absolutely have to do a profile of the life of James Clerk Maxwell - the guy was an absolute boss and yet non-scientists have rarely heard of him! Good video though, this is still revising for finals.... right?
@Ara-ot2yq
3 жыл бұрын
I...i just found a comment that’s a bit older then its been since i discovered your cannel. Just here to remind u about the good old times.
Wow this is so amazing sometimes I wonder how humans actually come up with these stuffs it is just mind blowing
Had to watch the video twice. First time I missed too much while laughing at Hank's shirt
OK IM ABOUT TO GO TROUGHT THIS WHOLE PLAYLIST AND NOTE EVERY THING YOU SAY HANK. ITS TIME FOR A KNOWLEDGE TRIP.
@asstrike
4 жыл бұрын
Same 2 me bro !
You're so awesome Hank! I was researching particle physics and I couldn't understand this part very well. Now I understand!
THE most amazing T-Shirt...EVA!
I have a few questions. How does the gluon "know" where to go (i.e. where the other quarks are)? Also, when the gluon is travelling between the quarks, wouldn't there be a tiny amount of time when the proton/neutron isn't colour-neutral? Is this allowed and if so, why? Finally, how do gluons relate to the force between the quarks? Do the gluons apply their force when they arrive at the quark? When they leave a quark? When they're travelling between quarks?
@Drakonya08
8 жыл бұрын
You're too intelligent for me
@stxnw
8 жыл бұрын
._. You obviously didn't listen to the video carefully. Remember that gluons have no mass? So what do things do when they have no mass? Yes. They move at the speed of light. The speed of light (C) is basically TIME itself. So the quarks would not even realise that anything has happened because anything that moves at C - Time stops. In conclusion, the gluon isn't really "moving" in the perspective of the quarks. They are more like, instantaneously teleporting? I may still be wrong though. Since I didn't Google it up. This is just my own hypothesis from everything I have learnt.
@benl2140
8 жыл бұрын
***** I'm not an expert, but I'm pretty sure that's not how relativity works. True, when an object is travelling at the speed of light, time would stop, but only for that object. In this case, the gluons move at the speed of light, but the quarks would only move at speeds much slower than that. So, while for the gluon itself, no time would pass (though I'm not sure what time passing for a gluon would be like anyway), but for the quarks, time would continue as normal. It's like light travelling form the Sun to the Earth: for the photons of light themselves, no time passes, but for people on the Earth, it does take time for the light to reach us (about 7 minutes, I think). Anyway, I've heard that one of the big problems in physics is that relativity and quantum mechanics sometimes seem in direct conflict, so I'm not sure it would be correct to apply relativity to this situation, regardless.
@stxnw
8 жыл бұрын
Ben L Ah. I watched the video again. He said that the gluon is like a rubberband that is spinning. Not really a particle that is flying around. Basically all colours are not left out.
@HalcyonSerenade
8 жыл бұрын
Remember that, at the quantum level, particles--especially massless ones--aren't strictly "objects" in the sense that we usually think about objects. Photons, for example, are the force-carriers for the Electromagnetic force, and famously act as both a particle and a wave simultaneously. Gluons are similar in that their "motion" doesn't exactly follow conventional ideas of motion and representing them as a small orb floating around between quarks is probably a just a visual convenience. So, basically, I don't really have an answer for "why do these things happen" because there's no rule at the quantum level that they *can't* happen--rather, that these things happening *are* the rules. I don't know the answer and I don't know whether the scientific community has a solid answer at all; but I do know that things are screwy enough at that scale that the best approach to gain an understanding of the current model is to go ahead and assume that "normal" physics doesn't apply at all. And, like with representing gluons as little orbs, a lot of visual representations are just visual conveniences to communicate a general idea rather than actually describe the physical process.
Great work Hank. Thanks for your passion for knowledge..... and sharing it.
these concepts is the heart of physics and i would simply love to know about them in detail. thanks for this video!
when I went at school they taught that gravity force between masses is calculated like this F=G*m1*m2/(R^2) and electrostatic force between charges are calculated similarly like F=K*q1*q2/(R^2) but never none mentioned how to calculate , say, weak force and strong force between protons/neutrons, even on wikipedia when trying to find some kind of formula all I see is difficult physicist jargon which is hard to follow without at relative background.. that's frustrating, can you please give me a formula for the strong force..??
@LazarusLong42
10 жыл бұрын
The problem is that there *is* no simple formula for the strong force. The fundamental strong force, which holds quarks together, doesn't change with distance. The residual strong force, which holds protons and neutrons together, decreases extremely rapidly with distance--at distances larger than the size of a nucleus, the electromagnetic force is much, much stronger. So while you can calculate the magnitude of the strong force between particles, it's much more complex than calculating electromagnetic and gravitational forces.
@muntee33
5 жыл бұрын
Kirian Well instead of insisting that nature follows our strange rules, why doesn’t anyone pay attention to what’s going on and ask nature how it prefers to play? I doubt it likes counting to 10 and resolutely refuses to stack its toys in straight, neat lines. I’m sure it would be more than happy to show us...
what about just "The Force?"
@christopherlawson7793
7 жыл бұрын
Hah, hah. I get it! Do you like Star Wars?
@Yellowflop
6 жыл бұрын
Zuckerburg 2.0 here
@crand20033
4 жыл бұрын
So strong it can hold positively charged protons together which would normally be forced apart.
@NovaWarrior77
4 жыл бұрын
you're on to something friend.
@htopherollem649
3 жыл бұрын
when they ran out of lube O'be Wan told Luke to "Use the force" 😂(Frankie Boyle)lol
SciShow's goal isn't to teach you everything there is to know about science, nor is it their job to keep the science they present at an elementary level. The goal is to show the audience cool things. If a brief mention of something here piques someone's curiosity in an area of science, then SciShow has done its job.
To the point - clear and concise. Thanks.
I thought the strong force has nothing to do with the atoms held together... it plays a role only on the scale of the nucleus.
@Ribbuns
3 жыл бұрын
Bruh, how does this have no comments and only 4 likes?
@SpotterVideo
2 жыл бұрын
Quantum Entangled Twisted Tubules: When we draw a sine wave on a blackboard, we are representing spatial curvature. Does a photon transfer spatial curvature from one location to another? Wrap a piece of wire around a pencil and it can produce a 3D coil of wire, much like a spring. When viewed from the side it can look like a two-dimensional sine wave. You could coil the wire with either a right-hand twist, or with a left-hand twist. Could Planck's Constant be proportional to the twist cycles. A photon with a higher frequency has more energy. (More spatial curvature). What if gluons are actually made up of these twisted tubes which become entangled with other tubes to produce quarks. (In the same way twisted electrical extension cords can become entangled.) Therefore, the gluons are actually a part of the quarks. Mesons are made up of two entangled tubes (Quarks/Gluons), while protons and neutrons would be made up of three entangled tubes. (Quarks/Gluons) The "Color Force" would be related to the XYZ coordinates (orientation) of entanglement. "Asymptotic Freedom", and "flux tubes" make sense based on this concept. Neutrinos would be made up of a twisted torus (like a twisted donut) within this model. Gravity is a result of a very small curvature imbalance within atoms. (This is why the force of gravity is so small.) Instead of attempting to explain matter as "particles", this concept attempts to explain matter more in the manner of our current understanding of the space-time curvature of gravity. If an electron has qualities of both a particle and a wave, it cannot be either one. It must be something else. Therefore, a "particle" is actually a structure which stores spatial curvature. Can an electron-positron pair (which are made up of opposite directions of twist) annihilate each other by unwinding into each other producing Gamma Ray photons. Alpha decay occurs when the two protons and two neutrons (which are bound together by entangled tubes), become un-entangled from the rest of the nucleons. Beta decay occurs when the tube of a down quark/gluon in a neutron becomes overtwisted and breaks producing a twisted torus (neutrino) and an up quark, and the ejected electron. Gamma photons are produced when a tube unwinds producing electromagnetic waves.
What about the Speed Force?
@gothicknight5538
7 жыл бұрын
Speed is energy (specifically "kinetic energy"). It is not a force.
@SleepinGriffin
7 жыл бұрын
Yo, it's a joke. In the Flash comics it says that his powers come from being able to tap into the speed force.
@olddrunkbastard1825
7 жыл бұрын
+William Lockhart Speed is a rate you dumb shit, it's distance over time
@gothicknight5538
7 жыл бұрын
+OldDrunkBastard You're right. That was my mistake. Thanks for your humble correction.
@olddrunkbastard1825
7 жыл бұрын
William Lockhart Well I mean I'm sorry if I came off as salty, it's nothing personal and I don't think less of you as a person for not knowing or anything, it's just it seemed rude to me that you tried to correct Griffin and act like an authority on the matter when you had the wrong information
Wow, I loved this one! almost everything in it was new to me :) thanks! looking forward to the rest of 'em.
I have a test on this tomorrow! This is perfect! Thank you so much, Hank!
What's the difference between "holding the nucleus together" and "keeping the protons and neutrons in the nucleus from busting apart" ?
10 жыл бұрын
Holding the nucleus together means it keeps protons and neutrons together, as in close proximity to each other. keeping them form busting apart refers to keeping the structural integrity of individual protons and neutrons. At least that's what I got from the video.
@JasonThomasTaylor
10 жыл бұрын
When he says "keeping the protons and neutrons from busting apart" he doesn't mean from busting apart form each other, i.e. a proton from blasting away from a neutron. He means the protons and neutrons themselves, which are made of smaller particles. An analogy would be that the strong force keeps a couple of balloons stuck together, and keeps the balloons from popping.
@7beers
10 жыл бұрын
Jason Taylor Thank you. :)
@daniel8763
5 жыл бұрын
@@JasonThomasTaylor Well said. I got that from the video too.
Jeez that is such an awesome shirt! Now I have something I can yell out after being in a car accident!
This was exactly what ive been looking for for years. 11/10.
Hank, thank you for this, this shall be a good resource for my Physics project concerning quarks!
Big difference between fundamental and fundamentalist. Fundamental forces hold everything together, while fundamentalists try to blow everything up.
All these forces and I can't force you to go out with me. All these attractions and I can't get you to be attracted to me. All these atoms held together and you don't wanna hold on to me. All.....shit! I ran out.
@AJ-Channel
8 жыл бұрын
***** what bruh?
@121Corey121
8 жыл бұрын
+3lectronic f4rts Math!
@Simp_Zone
7 жыл бұрын
All these gluons and I can't glue you on to me.
@toasterstrooder8628
7 жыл бұрын
All these repulsions and I can't get repulsed by you... ? I dunno. That's the best that I have.
@deezynar
5 жыл бұрын
All these electrons and I can't make you tingle with electricity. All these photons and I fail to be the light of your life. All these Higgs bosuns and I can't get you to return the mass of my affections. Alas, all these neutrons are keeping you completely neutral towards me.
Really looking forward to this series! Keep it up!
I hope you do more of these kind of videos that are substantial and relevant. I enjoy these more than the random topic short entertainment ones.
Why don't you make an episode explaining thw difference between theoretical physics and empirical physics, stressing the importance of the latter in the last years meaning that (and I quote Professor Stephen Hawking's interview on the discovery of the Higg's boson): some discoveries in physics are giving results that scientists didn't expect. This shows that Nature is far more complex to understand and evasive to our rigid equations which put a cage to Her.
I can't finish this video as I keep clicking the Quark song link everytime.
@deathclawplum
8 жыл бұрын
ikr
@kumarbk7918
7 жыл бұрын
+Mikey Steele what is our?
I love your show! Please continue. 👍
Absolutely brilliant! Your humour makes this so much easier to digest!
What if Quarks = Pixels and we live in matrix xD
@samueljames0908
10 жыл бұрын
That's some damn fine resolution!
@phiguy6473
7 жыл бұрын
and electrons ;)
@phenomenalphysics3548
5 жыл бұрын
Wow! I feel great
@JoeSmith-ol5kp
4 жыл бұрын
An Angry Pancake thank you someone understands
@randomguy263
4 жыл бұрын
@@bror1645 Well, it's really just the smallest length that quantum mechanics work in. Which, I guess, kind of sounds like pixels when I think about it. Oh, and we also live in a 3D world so they're actually voxels.
wait, so how exactly does the hadron relate to the proton and neutron? how many hadrons make a proton/neutron?
@TBomb15
8 жыл бұрын
+BattousaiHBr a hadron is a category of particle. Both protons and neutrons are hadrons.
@BattousaiHBr
8 жыл бұрын
TBomb15 oh ok that makes more sense.
@Dragrath1
8 жыл бұрын
+BattousaiHBr a hadron along with mesons are the two main categories of quark composed matter (also referred to as baryons by physicists). More specificallyHadrons are defined as particles composed of 3 matter (or anti)quarks that must be color neutral. Conversely, a meson which is the other type of baryon the other normal quark composition is a meson which consists of two particles, a quark and an anti quark the antimatter quark component. in both cases they are able to be stable as the quarks color cancels each other out. You may have seen things in the news about other numbers of quark combinations such as tetra and penta quarks being discovered in particle accelerator experiments but these only fleetingly exist in particle accelerators recreating the conditions of the early universe so can be ignored for the most part as they do not exist under normal conditions. In summary by definition: baryon=all matter made of quarks or anti quarks Hadron=particle made of 3 quarks or anti quarks Meson=particle made up of a quark and an anti quark both protons and neutrons are hadrons meaning they are composed of 3 quarks 2 up quarks and a down quark for a proton, and a up and two down quarks for a neutron.
@BattousaiHBr
8 жыл бұрын
Dragrath1 that was a very comprehensive explanation. is there any example of mesons or something that has mesons that directly affect our lives?
@Dragrath1
8 жыл бұрын
yes actually pions would be the example that comes to mind. They are actually shown in the nuclear force part of the strong force however the author(not sure his name) never really explained it but if you notice carefully in his video of the nuclear force the particles that mediate the interaction there are made of a quark and anti quark.If you know that cyan magenta and yellow are the anti primary colors you can note how the mesons cancel anti particles color charge cancels the quarks color similar to how a positron cancels an electrons charge. Honestly these two videos on the strong force should have been better integrated as quite a few things were either briefly mentioned but not explained or simply shown. The series does seem to be fairly good for introductory level. I would link a resource however most of the ones I have require a good amount of background but perhaps hyper physics could be a useful website I often used that when helping me study for exams particularly E&M.
i like this dude..he does complete crash courses in science.....i've learn a lot from these...thumbs up.
Sharing this for sure! Love this channel! Keep on!
Insightful video but he talks to fast I had to rewind 3 times to hear him say composed of hadrons.
Your so quarky..if we cross paths exchange mass I'd become a whole nother element.
@Yprion
9 жыл бұрын
Man that's beautiful
One of my favourite scishow videos. Maybe because I love physics. I love it!
Taking AP Physics my senior year- Thanks for demystifying the basics, scishow.
Don't speak so fast. It makes it hard for non-native english speakers to understand it. Specially when you're talking about quantum stuff.
@MinooMinou
9 жыл бұрын
English is not my native langage and I can understand all he said. By the way, you should find some documentation of the same stuff in your native langage, should you?
@zezo69
9 жыл бұрын
Minoo Minou Scientific variety in english language is greater. Plus, you're just playing cocky, for the guy just talks waaay faster than normal people.
@MinooMinou
9 жыл бұрын
Ok, I agree with that, he speaks quite fast. Maybe you have to get used to his voice. Do you know Yahtzee Croshaw?
@zezo69
9 жыл бұрын
Minoo Minou No. Who's that?
@MinooMinou
9 жыл бұрын
A guy who speaks really fast sometimes :)
I am excited about this mini-series
I've loved science since I was young! Especially physics!
I cant explain how excited I got when I was scrolling through Hanks tik tok during class and then suddenly heard his voice coming from none other than my google meet
you explain very well, keep doing videos like this
Thank you for uploading!
This was fascinating!
I've been watching videos on this channel for the past 2 hours... Really interesting stuff
Thanks so much! I luv ur show! U always help me with school!
YES! the fundamental forces! And very well-explained at that. Great vid :3
I am excited about this.
The force is strong with you, amazing one.
This would be a cool series to update based on what we’ve learned or what theories we now have experimental evidence to support
I will watch that again sometime in the future.
Thank you hank I've been trying to find a simple explanation on the FFF
Wow thank you for explaining something they just skipped over in class! And in a way that makes so much sense!
I don't think my mind have ever been blown quite so many times in the space of three and a half minutes before.
I didn't expect to see Hank here. I have to say, I take a liking to these Green brothers.
Awesome video!
awesome video. I would like to see one on time and spatial diminsions.
excellent, Thank you
Hey thanks for the Info! Glad to know.
Love your shows. Would be cool if you numbered each episode to make it easier to find the next one. Thanks
Your voice is unbelievably amazing
THANK YOU for making this video. Watching it is so much easier and quicker than studying Wikipedia for 5 hours.
i listensed to your song, and alot of your other songs. and you are awesome, i realy like you and everything you represent. keep it up
someone give this guy a medal
Thank you very much!
Hank, you have helped me a lot in understanding my current physics work. With this video, other SciShow vids and Strange Charm. It's sweet! You kinda explain things a lot better than my teacher who has a PhD... hehe odd..
I love this show
I love this channel.I usually understand everything or watch until I understand everything... but what the hell was I thinking of when I tought of watching this specific episode after 2 beers
Thank you Hank
I could listen to hanks voice all day ! ... totally got a squish here.
I wish this was up last week for my physics a level exam. Daaaaamn
brilliant, thanks
thx you hank for covering this, I have always wonder :)
Thank You!
you are just awsome. i love this show as much as my brain^^
Wow... that was a lot of information. But somehow it's still easy to understand, that's why I subscribed to your channel several months ago.
AMAZIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIING VIDEO!!!
you sir deserve all the ad clicks you get! wow
Ahh. Particle physics is so awesome. I mean, what can be more badass than knowing how everything in the universe works? And our dear Hank is made of badassery.
WOW !!! Subscribed !!!
well that was a fun little contribution you made there. thanks.
The force is strong with these episodes
yesssss!! :) I love physics. Thanks Hank!
thanks, I didn't really consider different quark types there for a moment, subatomic physics is not easy in the head, nice to finally kinda-understand it
The force is strong with this one!!!
Thank you. Glad I'm not the only one.
Impressive video
बहुत अच्छा वीडियो है बहुत जानकारी मिली।
More power dude!!!
If only I'd found this before my science exam! D: Its so helpfulll!~
Its back!! yay!)
you are legitimately teaching me more physics in 3 minutes and 37 seconds than my teacher has this whole year.
2:51 with subtitles best thing ever