This is so interesting. I remember studying about Einstein's and Planck's work on energy last year in school, and never understood a thing, but now things do be making sense. I really wish schools taught us the way you do :(
@tri3xil282
4 жыл бұрын
Yep
@sujanaryal833
4 жыл бұрын
Things are making sense now because you studied it in school the first time. Also he is trying not to go to details so that his viewers won’t be confused, but in school teachers are required to explain in details.
@gamingwithdeku9992
4 жыл бұрын
@@sujanaryal833 but aren't we supposed to understand things better when things are explained in detail ? I understand what you're saying, but here's the jam...some of the teachers in school don't bother to teach us with the heart of parting knowledge, they do just as much as it's needed for them to keep their job and earn their livelihood, leading up to why we lose enthusiasm in the subjects we were once excited about, which then leading to ignoring the subject and then hating it. It's basically how an average student's brain work. But here, without even getting to the details, James is able to explain complex stuffs easily...and I really really appreciate that.
@allhumansarejusthuman.5776
4 жыл бұрын
@@sujanaryal833 quite the opposite; on youtube educators are able to snag some additional cash by going into far more detail on smaller minutiae then educators in the classroom. I mean really, an entire video on the ultraviolet catastrophe! This is compared to a passing mention in an single line and an expectation to memorize planks constant and Inuit where it came from that I received, twice one in a collage another a university! (And the damn formula was wrong one of those times)
@dante6x
4 жыл бұрын
@@allhumansarejusthuman.5776 Its just because he makes learning fun. School can get pretty boring when all you do is read and study textbooks and then do the same at home and sure it might get the job done but it leaves you hating the subject. I used to hate reading because they would force me to and even after they stopped forcing it I still had the stigma and I didnt read a book for years. Theyre obviously doing something wrong if we end up hating the subject we're learning.
@g9g9g9g4
4 жыл бұрын
why and how does he explain quantum physics easier than school teachers explaining addition and subtraction
@chrisrenfro2058
4 жыл бұрын
I think because he explains in in laymen
@chrisrenfro2058
4 жыл бұрын
When in a proper school setting teachers typically go a bit more in depth because it isnt enough to know how math works, but to UNDERSTAND why it works. This is more casual learning imo. Very good tho, hes an awesome youtuber.
@hometheater6189
4 жыл бұрын
Cause he is PhD in chemistry and surely an enthusiast
@IssaalaaRacing
4 жыл бұрын
Facts
@FDM-Shammue
4 жыл бұрын
Nope nope nope he is just not getting paid for student torture
@jacobopstad5483
4 жыл бұрын
When you move past ultraviolet light, you run into "ultraviolent" light :D
@_Killkor
4 жыл бұрын
Plays Doom Ultraviolence
@Aikisbest
3 жыл бұрын
Doomguy! :o
@skyrat1896
3 жыл бұрын
You should thank god dislikes dont show up, mr. punny
@arunvish21
3 жыл бұрын
that's deep man
@jasnoor8-d-155
6 ай бұрын
You should thank god cats cant fly@@skyrat1896
@sciencedon3993
3 жыл бұрын
You should be awarded some highly extraordinary award for all this, what you do. I am 52, but I never felt that much experimentalist in my life, as I do now, after watching your videos all the time. there are several things that I came to know in your videos, even after being a senior science teacher my whole life. I think everyone owes you alot of respect, and whatsoever you need for making your videos. I've been watching you throughout the entire pandemic till now, but i am commenting only now. Sorry for that. I will do anything for you, just ask.
@69k_gold
4 жыл бұрын
Me: *Needs food* My brain: *Needs Action Lab*
@gnorts_mr_alien
2 жыл бұрын
What an exquisite explanation. You are one of the topmost gems of youtube and have a real knack for teaching. Can't believe you started with run of the mill hydraulic press videos and ended up here! Glad YT worked out for you.
@WouterVerbruggen
4 жыл бұрын
Nice summary of blackbody radiation! I remember doing this in my bachelors in the course Statistical Physics. One of the more difficult courses we had
@raymitchell9736
4 жыл бұрын
I really like this video! I know the video would get longer if you explained Kt, Einstein's photovoltaic effect for which he won the Nobel prize, since you already went into the rest of the equations it seems crucial to motivate what Planck did with his equations to match experiment... maybe you can cover that in another video? I'm not a physicist, so your explanation helped me better grasp the problem that needed to be solved and there was just enough detail to get the gist of the equations... it's not your usual "what happens when you put soap in a magnetic field and suck all the air out" LOL... it's good once in a while to have a high school / college level video... it stimulates my mind and helps me understand the world better. Thanks!
@dominicestebanrice7460
Жыл бұрын
Plank suffered through a multi-year crisis of confidence before publishing this and was extremely unhappy with it. He considered this math to be a temporary 'fudge' or work-around and fully expected it to be superseded by 'real' physics in the future. Years later, he was dismayed that this had become doctrinal. The core problem is that energy is a mathematical abstraction, something we invented to help us understand and talk about the real physical world (of properties, fields & forces), and that has proved remarkably useful in cross-disciplinary contexts; however, it is always and everywhere a function of other real, measurable, physical fundamentals (try buying a 'pure energy' meter!) and so we've manipulated it to the limit pure mathematics allows. GREAT video BTW, as usual for this channel.
@davehawkins5265
8 ай бұрын
Thanks to this excellent explanation I finally understand the spectral distribution of the black body radiation. The Action Lab has helped me where all the other KZitem videos did not. Thanks again!
@douglasstrother6584
3 ай бұрын
"Planck’s Route to the Black Body Radiation Formula and Quantization" by Michael Fowler details Planck's thermodynamic analysis of the entropy of Blackbody Radiation, which motivated his frequency-dependent hypothesis to satisfy Wien's Law at high frequencies. Planck's application of Boltzmann's Statistical Mechanics led to his conclusion that the material of the walls emit and absorb radiation in discrete quanta. It's a great read.
@jaypatel-yj9gw
4 жыл бұрын
This is what I learned in my 7 physics lectures.....and you revised it in 8 minutes awesome
@oshadhaprabhashwara69
Жыл бұрын
i watched so many videos on this but this was by far the one that actually made the most sense to me. Thank you!
@kaleycrum6350
4 жыл бұрын
Hey Action Lab! Something I want to know: They say that blue light interferes with sleep. What about people that are colorblind to blue light frequencies--does blue light interrupt their sleep patterns?
@sovietbot6708
4 жыл бұрын
Tritanopia is extremely rare, so it would be pretty difficult to study, but maybe.
@thunderbuttocks28
4 жыл бұрын
Good question
@Alasswolf
4 жыл бұрын
If I recall, a special blue light kills eye cells and that has nothing to do with being colorblind. They transfered this gene on other type of cells (not from the eye) and we're able to explode any cells they made. It doesn't do something to your sleep, it's turning your blind.
@yearswriter
4 жыл бұрын
I think that;s a myth now.
@h.m.muntazar6423
4 жыл бұрын
My dad is color blind and blue light doesn't affects his sleep so I'll say that the answer is no.
@rudyberkvens-be
6 ай бұрын
I enjoyed this and learnt something. You were so much better years ago than now. I guess because you’re more going for the clicks and views now, for your sponsors. That’s how the whole youtube science community is deteriorating, not only you. Keep up the *good* work.
@GWHPhoto
4 жыл бұрын
Out of all the times I have watched this guy. After watching this one I wish I kept at math. This really had me interested and wishing I knew more. My last successful math class was trig and I loved it (the way it was taught made it fun and me wanting to know more) though calculus was my breaking point. It stopped being fun. So, bravo ActionLab.
@SahilSingh-ki3cg
4 жыл бұрын
Thanks for making this video I could see the practical of what is studied yesterday
@pratik4833
4 жыл бұрын
Same here
@Tom-sp3gy
3 жыл бұрын
What lucidity and clarity!!! Why can’t textbooks be written the way this guy speaks ???
@dominicestebanrice7460
Жыл бұрын
FWIW, after years of being confused by teachers regarding this (they typically brought out a physical box, played around with it, and waffled on, never defining terms; leading students to quite naturally conclude that the box is the 'body'), I finally understood that it's actually the hole that is the 'body'!
@bone_doctor_yeet
4 жыл бұрын
"Converts a cardboard box into perfect black body" that Huggies box: - "Hey i am no joke"
@speedbird7587
6 ай бұрын
The Ultraviolet Catastrophe very nicely explained! Thank you!
@douglasstrother6584
3 ай бұрын
"Blinded by the Light" ~ Manfred Mann's Earth Band
@nt1441
4 жыл бұрын
WOW!!! Fantastic explanation (even including experiment!). Simple, concise, clear and in depth. I truly am stunned by this :)
@voidisyinyangvoidisyinyang885
4 жыл бұрын
BEST simple explanation of Planck's Law and Ultraviolet Catastrophe
@db5837
Жыл бұрын
The best explanation!
@Liam42Pods
4 жыл бұрын
It absorbs everything like an acoholic
@scoobertmcruppert2915
4 жыл бұрын
Huh? I don’t get that. But maybe...It absorbs everything, unlike an alcoholic’s liver...
@ok.17092
4 жыл бұрын
Wow
@ginosko_
4 жыл бұрын
It absobrs everything liek a acoholic
@WalidHADDAD60
Жыл бұрын
Great explanation. It took only 8 minutes to explain the Ultraviolet Catastrophe.
@Games_and_Music
4 жыл бұрын
Love that end shot, you're blocked by 2 thumbnails, the right side has the Action Lab channel logo, and the middle part is just an empty square of white board, great exposition! haha
@HamburgerPig
4 жыл бұрын
I saw this when it was 1 minute ago :D amazing vid btw
@The_Arizonaranger
4 жыл бұрын
I love ur name
@furiousphoenix9784
4 жыл бұрын
Technoblade's secret account?
@The_Arizonaranger
4 жыл бұрын
FuriousPhoenix mabye😏
@ankeetghosh416
4 жыл бұрын
Wow...its like the practical explanation of what i studied in quantum physics. 😎
@adityaiyer7600
4 жыл бұрын
The ultraviolet catastrophe graph seems just weird when plotted against frequency instead of wavelength
@nealdaniel8800
5 күн бұрын
It was helpful to see a black body box. I could never understand why planks contemporaries had to have such an idealized analog. Couldn't they use a metal tube closed at one end? They could heat the closed end and peer down the open end. The sides would reflect enough radiation inward and the light would shine in the darkness. You can try that if you want. Please show us why the silly box was preferred . Thanks!
@philoso377
4 ай бұрын
Nice video and presentation. Remember that curve fitting is black box modeling but science.
@aaronmarks9366
3 жыл бұрын
This was very different from what I was expecting
@monish4308
4 жыл бұрын
This was exactly my portions in chemistry. Thank you soooo much
@mdtarequzzaman5485
4 жыл бұрын
*WHAT IF YOU HEAT UP THE WORLD'S DARKEST MATERIAL?* *IT'D WARM UP*
@brando3342
4 жыл бұрын
Plot twist: there is no material.
@mdtarequzzaman5485
4 жыл бұрын
@@brando3342 *LOL*
@anantakabir8390
4 жыл бұрын
Md Tarequzzaman Are you sure about that.
@mdtarequzzaman5485
4 жыл бұрын
@@anantakabir8390 *DUNNO*
@adi.olteanu.1982
4 жыл бұрын
Hey...... You're among the peoples who are doing a great job/favor for science, nursing young minds. Keep it up with this kind of videos.
@diurahsado5821
4 жыл бұрын
The creation of the planc constant was, according to Planck, the act of greatest despair. :)
@LuisSierra42
3 жыл бұрын
He basically forced his equation to work
@harishs7384
3 жыл бұрын
I am an em wave enthusiast.... This is the perfect expected video out of action lab tqsm😍😍
@Sw33tG4mer
4 жыл бұрын
The Action Lab teaches me more science than I learn on school.
@pritivarshney2128
4 жыл бұрын
So true
@yajjatiyer4879
4 жыл бұрын
Exactlt
@yajjatiyer4879
4 жыл бұрын
Now we can be smart in front of friends
@pritivarshney2128
4 жыл бұрын
@@yajjatiyer4879 Haha sure
@yajjatiyer4879
4 жыл бұрын
@@pritivarshney2128 1 of my friend sees this channel too so he will know😂
@kwondolee4242
6 ай бұрын
Very helpful. Thank you.
@javiercastro8466
3 жыл бұрын
I never had any real formal education, but I was always curious and I learned physics when I bought a university physics book at the used book store for $20 and just started reading. I managed to get into a few engineering positions, but pay and advancement was always hindered by my not having a college degree - later in life I related my frustration similarly to Faraday. Anyway, the physics book was a bit hard to understand at times and now wish I had KZitem and this guy back then!
@sabarishssibi3382
2 жыл бұрын
I love your Way of teaching Like very friendly cool. Non exaggerated. Very Impressive. 👏👏👏👏👏🤗
@legendcuber3638
4 жыл бұрын
There is nothing Really nothing in here Why are you trying Ok you almost there Just there \/ \/ May your parents live for more than 100 years
@mavdotj
4 жыл бұрын
Thank you
@shezacuber6092
4 жыл бұрын
Hello fellow cuber
@sherwin-speedcuber2060
4 жыл бұрын
Hi cuber
@legendcuber3638
4 жыл бұрын
@@shezacuber6092 Hi
@legendcuber3638
4 жыл бұрын
@@sherwin-speedcuber2060 Hi
@niabigone5389
4 жыл бұрын
Please notice my comment, Can the cement dry in space?
@moiquiregardevideo
3 жыл бұрын
Black body radiation is producing electromagnetic waves of any frequency, not just the resonant mode that a given atom have, the spectral lines. This is because of spreading of the lines caused by Dopler effect. When an electron return to a lower energy level, it emit a fixed frequency. But that frequency is red shifted if the atom was moving away from the observer at emission time. The hotter the object, the higher the frequency. But also, higher temperature make the atom vibrate more violently, so the widening of the spectral line is greater.
@heminhimdad
4 жыл бұрын
Dude I wish I had seen before, such an amazing explanation
@anuragtyagi1111
3 жыл бұрын
This guy deserves more subs than this , pls god make his subscription over 10 million already 😭 ❤️
@javiej
4 жыл бұрын
Nicely put. The best explanatory video of the ultraviolet catastrophe that I have ever seen.
@ritobt
4 жыл бұрын
I design telescopes with NASA for studying the Cosmic Microwave Background (the ultimate black body radiation). Wonderfully done video especially to develop an intuitive understanding of quantum-radiation! An extension could be done using a spectrometer (or something) to show the Planck curve falling at high frequencies.
@flatbreadsub
4 жыл бұрын
Funny how this makes perfect sense
@GeorgeTheMonkey166
4 жыл бұрын
Not to me 😅 😭
@aakhya9844
3 жыл бұрын
Most simplest explanation of ultraviolet catastrophe 😃
@nikodll
4 жыл бұрын
So, how would those quantum effects appear to us on a larger scale, if the Plank's constant was much bigger? Like the heating body would be blinking/flickering?
@MuhammadDaudkhanTV100
4 жыл бұрын
Good experiment and very nice experiment
@yourturn_00
2 жыл бұрын
Great video! But I still have a doubt here, why does the curve bend at the shorter wavelengths? How is the particle nature of light elucidating the bending of the curve?
@nathaishik
Жыл бұрын
I have a request. Why not start a lecture series. It would be very helpful.
@hariharansankaran9012
Ай бұрын
Thank you. How does plank equation plot to the real life graph? Can u explain pls?
@ultimatefoodzone9577
4 жыл бұрын
Always love to learn new things from your videos,keep duing it.👍🏻
@mdtarequzzaman5485
4 жыл бұрын
*HE TAUGHT ME MORE THAN MY SCHOOL*
@rx22390
3 жыл бұрын
Please make a longer video on this. I actually understand it from you.
@ManishKumar_mbbs
4 жыл бұрын
So much action going on in this lab 👍👍👍👍👍👍👍👍👍👍👍👍👍
@kaustubhsharma193
4 жыл бұрын
The action lab : the whole numbers start from 1 Natural numbers : who the hell am I??!! 😡😡
@gamingwithdeku9992
4 жыл бұрын
He meant whole numbers as in the real numbers with a denominator as 1
@lewx_
4 жыл бұрын
@@gamingwithdeku9992 0/1 -1/1
@kaydendoesntbreak
4 жыл бұрын
if we put zero(0) then the whole multiplication will become zero and the equation will give answer as zero, which is non sense
@225rip
2 жыл бұрын
Great but it didn’t give an visual explaintion of the drop, can you do an example of the drop and continued down slop?
@pikiwiki
2 жыл бұрын
Thanks!
@MadScientist267
4 жыл бұрын
I got a little lost at the end, but overall, a much better explanation than any I've seen before. Thanks man.
@marialiyubman
3 жыл бұрын
“So this is my theoretical black body” Censored by KZitem.
@capjus
Жыл бұрын
i dont get it! how is less UV related to quantizing ??? why the curve goes down when quantized ??
@firestonestudios3128
4 жыл бұрын
The sun and incandescent bulbs are also black body radiators. This is why the CRI on both sunlight and incandescent bulbs are 100, despite being very different color temperatures. A standard incandescent has a color temperature of around 2400 Kelvin, whereas candlelight is around 1700K, Halogen or tungsten bulbs used in filmmaking are around 3200K, and sunlight is 5000-7000K, depending on a number of factors, but in film we usually shoot for 5600K as a standard. Other light sources which excite gasses do not produce colors in the same smooth spectrographic arc, and instead have spikes in certain areas, and gaps in others. This produces colors that aren't as natural to our eyes, which is why CRI was created, which is a color rendering index designed to tell us how good an LED or fluorescent or other non black body radiator reproduces the natural spectrum of a black body radiator, with 100 being comparable to black body radiators.
@TheActionLab
4 жыл бұрын
The sun and incandescent bulbs are usually modeled as blackbodies, although the aren't perfect ones. Actually to a model theoretical blackbodies scientists usually use a hole in a box as I showed here.
@firestonestudios3128
4 жыл бұрын
The Action Lab you are correct. So for practical purposes, like lighting, the sun is effectively a black body from a spectral curve standpoint, but because of temperature variations and other inconsistencies resulting from other reactions and it not being a uniformly emitting surface, it wouldn’t be an ideal example for scientific purposes.
@sagardash4086
4 жыл бұрын
Sir you are awesome
@lambda4931
3 жыл бұрын
Thanks. Best explanation on KZitem.
@CarlosMats
2 жыл бұрын
you have a gift of explaining things we love you!
@saveearth9816
Жыл бұрын
I want to ask why they call it catastrophe.... Is it because it breaks the expectations of the classical physics?... Or the catastrophic effects of UV... X_RAY... & GAMA RAY'S...?
@samairajaswal1381
5 ай бұрын
THANK YOU
@samairajaswal1381
5 ай бұрын
the graph should really be explained using frequency insteas of wavelength its much easier that way
@winproduction7585
3 жыл бұрын
Thanks for the video
@evelin.design
Жыл бұрын
Excellent lesson, thank you very much !!
@frankklever5950
3 жыл бұрын
Thats a lot clearer than other vids about this topic! Thanks
@sciencespectrum3855
Жыл бұрын
7:05 why n=2,3,4 i don't understand it 😢 please sir explain 😢
@harishs7384
3 жыл бұрын
Tqsm😍😍
@YunTanYingShi
4 жыл бұрын
great idea. thanks you
@BlackWolf42-
4 жыл бұрын
Hmm, I think that explanation ended rather abruptly.
@Games_and_Music
4 жыл бұрын
I had the same thought, i felt like i was just getting into it and then it ended.
@ahmad138
3 жыл бұрын
It ended just like that curve that drops in the ultraviolet region 🤷
@philosophem1629
16 күн бұрын
So, temperature, color and EM spectrum are the same thing, phisically? Why the red light is visibile at roon temperature, even it correspond to a lot of heat?
@ChrnX0
2 жыл бұрын
Damn great explanation! Would say even better than what my professor tried to explaining in the university on the first classes.
@lookupverazhou8599
Жыл бұрын
At what size hole does it create a black body radiator? Do different size holes allow different frequencies through?
@sandrawong6787
4 жыл бұрын
Can u explain why different chemicals produce different coloured fire? Like orange from carbon and green from boron and magenta from lithium?
@farandbeyond
2 жыл бұрын
How would a person with very limited knowledge of this topic but absolute admiration begin studying quantum physics, but studying it on a lower level, where they can begin to break down the language and increase there knowledge of the topic out of curiosity and personal growth? I have looked but it's all at a level to high for beginners, what is ground level or stage 1 in this field?
@Issacmoon
4 жыл бұрын
Do Sulfur hexafluoride under water
@PakornThaipituk
4 жыл бұрын
Could you please explain, why does hot BB emit contineous frequency of electromagtic radiation while gas discharge tube emits discrete frequency.
@ragecharacter4743
4 жыл бұрын
Sorry trying to find a bucket to catch my brain leaking out of my ear lol
@BevanHuang
4 жыл бұрын
Imagine using this as a wallpaper in your room.
@BensCoffeeRants
Жыл бұрын
Wouldn't you get the same results / same colours if you just heated up the metal place without having the blackbody radiator? It seems like all we're doing is seeing the metal plate heated up glowing, behind the hole.
@kylwatson9240
2 жыл бұрын
So I had heard that Plank's distance represents the smallest viable distance separating two unique points and I'm wondering if it's related to this. I would love to see a video on that if you have one.
@brendonbackus1297
2 жыл бұрын
It was named after him I believe, he wasn't the inventor of all the plank units.
@suyashupadhyay3262
4 жыл бұрын
The explanation was Great Sir
@chuglyc
3 жыл бұрын
That was an excellent explanation. Thank you so much.
@Gabie76
3 жыл бұрын
So i might be totally wrong but does this mean that the light or all of the ray spectrum isnt as much a slider but tiny destinct values?
@tokajileo5928
2 жыл бұрын
just to clarify: the energy of a free electron for example can be any value. It is only if an electron is in an atom where its energy is quantized.
@jill8667
4 жыл бұрын
Paper (white ): turns black on heating Black material: turns yellow or white
@FondueBrothers
3 жыл бұрын
Is this how they describe the Colour Temperature of light bulbs? In which case "Warm white" because it has a yellow tint, is actually cooler than "Cool White" which is a harsh white light. I thought that the filaments of incandescent light bulbs were made of tungsten because it glows with a certain brightnes and colour, but you say that any material heated to a certain temperature will glow with the same colour.
@shashank7220
4 жыл бұрын
This guy explains so well that T don't need to see the video twice.
@llawliet5921
4 жыл бұрын
When I was in school I wanted a physics teacher like you
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