Understanding Thermal Radiation

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  • Опубліковано 1 лют 2025

КОМЕНТАРІ • 306

  • @TheEfficientEngineer
    @TheEfficientEngineer  3 роки тому +49

    Thanks for watching - let me know what you think! The bundle with CuriosityStream mentioned at the end of the video is no longer available - sign up directly for Nebula with this link to get the 40% discount! go.nebula.tv/theefficientengineer. You can catch the bonus video Understanding Dimensional Analysis on Nebula here - nebula.tv/videos/the-efficient-engineer-understanding-dimensional-analysis.

    • @swayambhun.chakraborty463
      @swayambhun.chakraborty463 3 роки тому +1

      I like your videos very much...they help so much to get strong concepts.

    • @87osvald
      @87osvald 3 роки тому +1

      @The Efficient Engineer What software do you use to make the videos?

    • @samdisum6414
      @samdisum6414 2 роки тому +1

      Where is your next video? I hope it's engineering drawings.

    • @dave84111
      @dave84111 2 роки тому +1

      Have you stopped making videos for this channel??

    • @TheEfficientEngineer
      @TheEfficientEngineer  2 роки тому +1

      Nope! Next video on Tuesday!

  • @nepps_
    @nepps_ 3 роки тому +350

    Its unbelivable how these videos drop just at the instant you need them. Thank you so much!!!

    • @idealthinker101
      @idealthinker101 3 роки тому +8

      I can't express how true you are 😱
      Even I also needed this video today only !
      'Cause today my teacher delivered an intro lecture to Thermal Radiations and Blackbody.
      And asked us to prepare for them in advance.

    • @paradhoax
      @paradhoax 3 роки тому +2

      Mic

    • @LiborTinka
      @LiborTinka 3 роки тому +2

      That's because you count the hits and not the misses :-) For hundred videos that didn't drop just right you picked the one that did. It's normal we all do that - brain is basically a discriminative detector with oversensitivity to certain features (e.g. faces).

    • @Jack-cx8tj
      @Jack-cx8tj 3 роки тому +2

      @@LiborTinka But it’s very consistently perfectly timed for this channel’s videos, and he doesn’t have hundreds of videos, could be because they are releasing videos based on a common engineering curriculum

    • @krishpandey9725
      @krishpandey9725 3 роки тому

      Exactly dude I was in between ch of radiation it’s at the right place at the right time

  • @ingGS
    @ingGS Рік тому +10

    One of my favorite UA-camrs ever. His videos cover essential topics in short time without leaving out important aspects of it.

  • @beatofmysteps
    @beatofmysteps 3 роки тому +32

    holy fuck... i got goosebumps when he said "this is why object glow when heated."
    i've never questioned why hot object tend to emit visible light.

  • @collegevibes12
    @collegevibes12 2 роки тому +31

    Your videos are always a life saver come exam time. It's remarkable that you're able to explain these complex concepts better in 17 minutes than most professors can in weeks of lectures. Thank you!!

  • @arifibrahim590
    @arifibrahim590 3 роки тому +66

    You are an absolute godsend to all engineering students as 3blue1brown is to the mathematics community. These videos give the perfect overview for concepts that are initially hard to grasp with amazing animation and clear explanations.

  • @sadatiqbalpriom7389
    @sadatiqbalpriom7389 2 роки тому +15

    You deserve a million subscribers man. Before going to the nitty gritty, watching your videos for the overview always helps

  • @alexdagios28
    @alexdagios28 3 роки тому +10

    one of the most pleasent animated videos I 've ever seen, as an electrical engineer, i'm not very familiar with transfer heat concepts, but your video made it all very clear! amazing!

    • @melaniecotterell8263
      @melaniecotterell8263 3 роки тому

      I haven't felt the same about heat since I learned that it was an electromagnetic wave. And I thought it was heat. It just doesn't feel the same anymore.

    • @RaviBRUH
      @RaviBRUH 2 роки тому +1

      @@melaniecotterell8263 Heat can be transferred in primarily 3 ways Conduction, Convection and Radiation and in Radiation only it is transferred as an EM wave and in other two cases it is different.

  • @nonamex3052
    @nonamex3052 2 роки тому +7

    Your videos are a life saver for an engineering student like me. Before I even read lecture slides I check if you have a video on the topics, you truss and material sciense videos are amazing. Pls don't stop and thanks you

  • @ashutoshsuman9473
    @ashutoshsuman9473 3 роки тому +21

    Your visuals makes it easier for us to understand. Thanks 🙏

  • @shmkrar1153
    @shmkrar1153 2 роки тому +4

    I wanted to learn 'what a blackbody is' when I clicked on this video. This video blew my mind away & I enjoyed every second of it. And oh yes, I also found the answer to my question

  • @hamza_ME_
    @hamza_ME_ 3 роки тому +18

    You are bringing a revolution to Engineering Academics and I feel I am fortunate to be alive in this era of revolution.
    Our successors are going to be so much lucky, we aren't less tho.

  • @ishanpoudel5999
    @ishanpoudel5999 Місяць тому +1

    Totally crazy sir!!!
    This video is worth a months of Radiation lecture !!!!!

  • @bobvines00
    @bobvines00 3 роки тому +64

    Nice video and well explained. I wish this had been available back in the stone age when I was learning this.
    Also, I wish there was a way to give a "thumbs up" & comments for your Nebula videos like the "Understanding Dimensional Analysis" video you mentioned -- it's quite good. I remember learning & using it a lot in college and at work too.

  • @alaminparves6926
    @alaminparves6926 Рік тому

    Even you don't know how much easy u make the topic understandable. Please never stop uploading new topics

  • @staircasefunction9124
    @staircasefunction9124 3 роки тому +3

    Dude I really appreciate your work. It doesn't matter to me what topics you cover in your videos but they're very easy to understand and interesting.
    Thank you

  • @arun-lg8cl
    @arun-lg8cl 3 роки тому

    literally don't have words.......the way you explain is unmatchable and unbeatable

  • @saturn7699
    @saturn7699 Рік тому +3

    I have no words to describe how good this video was. This channel is an absolute 💎 . Thankyou 💟

  • @hyeloque3537
    @hyeloque3537 3 роки тому +2

    As always this channel releases video's on the exact topic i am currently studying days before finals. Great content!

  • @toninhosoldierhelmet4033
    @toninhosoldierhelmet4033 2 роки тому +1

    alright, this was one of the best science videos i've ever seen

  • @siddharthmallbishen2115
    @siddharthmallbishen2115 3 роки тому +1

    This video really cleared my concepts. A heartiest thanks to the team members of this channel.

  • @akshaychilwal7003
    @akshaychilwal7003 3 роки тому +35

    Whenever I watch ur channel, I feel like why the heck did I not find u during my college.

    • @XxSteamStreamxX
      @XxSteamStreamxX 3 роки тому +4

      What i find really ironic, is that this channel seems to upload the exact topics I'm covering in my classes as they go up. I just got to the radiation portion of my heat transfer class last week.

  • @peckdec
    @peckdec 2 роки тому

    These are honestly the best science videos in youtube.

  • @andrewbetz535
    @andrewbetz535 3 роки тому +2

    Your channel is a blessing. Such beautiful animation, and simple straightforward explanations. Wish I could subscribe twice

  • @johnnydoe3603
    @johnnydoe3603 3 роки тому +1

    This Video is One of the Best Pieces of
    Actual Content I have Watched. 😊👍🏽

  • @Exist64
    @Exist64 3 роки тому +4

    Finally more thermodynamics, thank you!

  • @Asmomin
    @Asmomin Рік тому

    For conceptual understanding of topics your channel is outstanding

  • @physicslover1950
    @physicslover1950 3 роки тому

    I wax studying heat transfer by radiation from text book.... It took me 2 days to complete the chapter with still unclear concepts .... You made the video on the exact time and cleared all concepts in 15 mins... Beautiful... 💖💖💖💎💎💎💐💐💐.... I will be very thankful to you if ypu post ypur video of dimensional analysis here on UA-cam... Please we need it badly...

  • @AJHS369
    @AJHS369 2 роки тому +1

    Thank you for making these videos!
    They are the best explained I've ever watched

  • @niloysarkar4640
    @niloysarkar4640 2 роки тому

    Best animated video on thermal radiation with proper explanation. Thanks a lot.

  • @LiborTinka
    @LiborTinka 3 роки тому

    Whoever made animations for this video did a great job.

  • @pranjalsinha2131
    @pranjalsinha2131 3 роки тому

    I am highly impressed by this UA-cam channel and look forward to more uploads!
    Love this channel :D

  • @courage936
    @courage936 3 роки тому +4

    What a coincidence, I just decided to learn about Quantum mechanics for fun, and this video is uploaded within hours, the graphics are so beautiful too!

  • @FirstSword-o6f
    @FirstSword-o6f 11 місяців тому

    Perfect explanations.
    I love how you leave room for the information to seep in before moving on 👌.

  • @whatispraveen
    @whatispraveen 3 роки тому +2

    Such a great video. The concepts are explained from the ground . Thanks

  • @tanujkumar1576
    @tanujkumar1576 3 роки тому +1

    Just as I'm working on a thermal radiation problem. This helped me visualize this topic so well. Thank you!

    • @melaniecotterell8263
      @melaniecotterell8263 3 роки тому

      There are extra blankets in the closet. Visualizing warmth will not make you any warmer. NFW.

  • @nustclips248
    @nustclips248 3 роки тому

    Excellent video. Hats off to your channel. This channel will get millions of subscribers I bet

  • @arpitgami3522
    @arpitgami3522 3 роки тому +1

    Great explanation. Every second of the video is finely crafted , all the visuals are so perfect !!! Wow !! 👏Thanks for providing such high level content. Just Fabulous 🤩

  • @traviswebster4622
    @traviswebster4622 10 місяців тому

    You're a beautiful teacher of principles and content, thank you

  • @tylerdurden1911
    @tylerdurden1911 3 роки тому

    this channel is a gold mine

  • @vamsikrishna-wj5zp
    @vamsikrishna-wj5zp 3 роки тому

    U r the best I HV ever seen in my life like u ,all semester lessons in less than 20 min wow, take a bow 🙏

  • @alitahaakpnar2863
    @alitahaakpnar2863 8 місяців тому

    Veryyy helpful! Especially when I have a Thermal Eng. exam in a couple of days. Thank you so much for these insightful videos.

  • @priyansutank
    @priyansutank 3 роки тому +2

    Hey, now I'm doubting. How do you know that next week I have an exam on Heat Transfer...!!!
    Well done bro... A truly exceptional work from a mechanical engineer for mechanical engineers.

    • @melaniecotterell8263
      @melaniecotterell8263 3 роки тому

      This video will not help you calculate answers to heat transfer problems. That is why you have a 15-week intensive curriculum in one topic of study. He needs to do a video on Thermodynamics which is nothing like heat transfer Thermodynamics is confusing, How and why a gas heats when compressed. That's most of it

    • @amitosh1131
      @amitosh1131 3 роки тому

      @@melaniecotterell8263 sometimes, understanding how things work truly help solving a problem, because all of a sudden you understand why using a specific formula over the other and all that kind of stuff.... At least that how i feel.
      About the temperature thing, the temperature of a gas is greatly affected by 2 factors, volume and pressure,
      Tou can see it in the ideal gas law, PV=nRT...
      The more intuitive explanation is that as u compress a gas, the gas particles bump into each other more and more, which give the gas more kinetic energy which raise the temperature!

  • @rishivardhan9147
    @rishivardhan9147 3 роки тому

    Thnx a tonne! I was learning this from Bk Dutta and was finding it very difficult to visualize. You've saved my life!!

  • @MsBoss98
    @MsBoss98 2 роки тому +1

    This is basically a nice video summary of the radiation chapter in incropera fundamentals of heat and mass transfer 😅Very usefull!!

  • @vaibhavgupta8726
    @vaibhavgupta8726 Рік тому

    It’s very efficient to Learn from your video, it summarise all concept or build a physical understanding of topic

  • @ritikpatel6520
    @ritikpatel6520 3 роки тому +2

    Please increase your rate of uploads. The world needs many more such type of quality videos.

  • @alexandreboulch5455
    @alexandreboulch5455 3 роки тому +3

    Awesome video as always! Thank you so much for this great work!
    I would just precise that the EM wave do not only follow straight lines within mediums, which explains mirages for instance. And that there is at least a fourth way the heat can be transfered between objects, which is by being carried along within moving matter : transportation.

    • @darylh8657
      @darylh8657 3 роки тому

      "by being carried along within moving matter : transportation"
      also known as 'convection'

    • @alexandreboulch5455
      @alexandreboulch5455 3 роки тому

      @@darylh8657 I meant solid matter . I think convection is a term only used for fluids. For instance an ablative thermal protection on a re-entry vehicle. Small solid bits would detach, moving the heat they carry away from the spacecraft.

  • @DNO1337
    @DNO1337 3 роки тому +2

    WHAT! I have an exam on this soon. What a good timing!

  • @aaaaaaaaaaaaaaaaaaaaaaaaaa1992
    @aaaaaaaaaaaaaaaaaaaaaaaaaa1992 2 роки тому

    Thank you. This is a bit advanced for me in high school but i didnt understand my book. This helped make my understanding deeper. I like this

  • @tnk.2033
    @tnk.2033 3 роки тому +1

    Please keep doing these videos, they are really great

  • @dominicestebanrice7460
    @dominicestebanrice7460 Рік тому

    Another MASTERPIECE educational video from this channel. Thank you.

  • @otavioalmeida6638
    @otavioalmeida6638 3 роки тому +1

    Great video. Coincidentally started to review radiation for my thesis today. Came in as a great motivator :)

  • @jamegumb7298
    @jamegumb7298 3 роки тому

    Clear and concise. Not rushed.
    I like it.

  • @lyall3000
    @lyall3000 2 роки тому

    Thanks

  • @gwyn.
    @gwyn. 3 роки тому +1

    It sucks that this channel didn't exist when I was in school. Else I probably would be an engineer by now. lol
    Great channel, keep it up.

  • @sanchitatripathi7240
    @sanchitatripathi7240 Рік тому

    Sir please start making vedio . Your style of explaining is just amazing. I don't know how to express it in word's but really your vedio helps us a lot❤

  • @akashvvaannii
    @akashvvaannii Рік тому

    How simple our life would be if our college profs could teach like this or just play this video in the class should be enough as well..

  • @shrutisharma2325
    @shrutisharma2325 3 роки тому +1

    Perfect! Exactly what I wanted right now! Thank you so much, your videos are always amazing. 👍👍

  • @yusufkor5900
    @yusufkor5900 3 роки тому

    This colors... this animations... PERFECT!!

  • @parkashsingh9044
    @parkashsingh9044 3 роки тому +1

    WE can wait for such type of content... keep it up sir.... 😄

  • @TheUglydandy
    @TheUglydandy 3 роки тому +1

    Now I see how and why there are big challenges in designing future spaceships with powerful nuclear reactors. Thank you for this video.

    • @TheUglydandy
      @TheUglydandy 3 роки тому

      @@400_billion_suns Yes, I meant that the material of the radiators (its ribs) has to be both emissive and reflective, in order to reflect heat from the neighbor radiators (otherwise - a large and, presumably, a heavy sphere).

  • @sam08090
    @sam08090 3 роки тому

    Excellent Teaching. Pleasing colors. Brilliant animation. Simply awesome ❤️

  • @SniperGangRaRa
    @SniperGangRaRa Рік тому

    Awesome video, my new favorite refresher

  • @johannesnm9706
    @johannesnm9706 3 роки тому +2

    This was another great video. It would be cool if you could cover convection and conduction as well:)

  • @hamzahal_khalaf5386
    @hamzahal_khalaf5386 2 роки тому

    you summarized all the stuff i need thank you so much 😍

  • @sussushi
    @sussushi Рік тому +2

    If I have a THIN hemispherical shell that is recieving heat from a source at its center, would both it's inner and outer surface be considered in area term? Does the term THIN has anythjng significant to do with it?
    Considering that for a thin sheet of charge, we consider it to be 1 surface of charge in all.

  • @LolRoboShotU
    @LolRoboShotU 2 роки тому +1

    In your descriptions, can you put the required education for better understanding? Math level, the Physics level. Thank you!

    • @varunpv5050
      @varunpv5050 2 роки тому

      i think AP high school phy is enough

  • @panaderoovino6342
    @panaderoovino6342 3 роки тому

    amazing video, you are saving my life before my final exam!!!!!

  • @jeffwads
    @jeffwads 3 роки тому

    I am getting commercials about shaving nether regions whilst watching this great video. Talk about a mind-shift.

  • @feynstein1004
    @feynstein1004 3 роки тому +1

    Amazing video. If only it'd been uploaded back when I was in high school 😅

  • @shetty494
    @shetty494 3 роки тому +2

    As always superb. Can you please make video on acceleration and velocity analysis of mechanisms.

  • @rkye3915
    @rkye3915 3 роки тому

    such a good video. keep it up man!

  • @mengthongleng6162
    @mengthongleng6162 3 роки тому

    Thank for great video of heat transfer by radiation.

  • @rickshen1370
    @rickshen1370 Рік тому +1

    so useful

  • @kgkmurthy1961
    @kgkmurthy1961 Рік тому

    A great feeling to learn physics... thank you for the team...

  • @arkadas3797
    @arkadas3797 2 роки тому +1

    Should make one on CFD

  • @GabbiePhenomenal
    @GabbiePhenomenal Рік тому +1

    very good

  • @khanhhuyen8630
    @khanhhuyen8630 2 роки тому

    a beautiful, make sense video

  • @socialmediashiva
    @socialmediashiva 3 роки тому +1

    Please do some videos on Fluid Mechanics.

  • @jimihendrix1263
    @jimihendrix1263 3 роки тому

    Best channel ever

  • @socialmediashiva
    @socialmediashiva 2 роки тому

    Please do a video on explaining more fluid mechanics concepts..Where one need visual explanation for clarity about the topic.
    Hope you do ❤️

  • @tensevo
    @tensevo 2 роки тому

    Great channel for revision.

  • @ahmarrehan1044
    @ahmarrehan1044 3 роки тому

    Great way of explanation

  • @matis9783
    @matis9783 3 роки тому +1

    Very good video. Could you cover up more topics on heat transfer?

  • @juicewarrior2501
    @juicewarrior2501 3 роки тому

    Truly a great video like always.

  • @paulg444
    @paulg444 2 роки тому

    Stefan Boltzman is one of the most counter intuitive laws in physics.. It begs the question, how can a measure of energy flow be proportional to Temp to the 4th power when Temperature itself is a measure of internal energy. This needs to be explored in more detail.

    • @bryanfuentes1452
      @bryanfuentes1452 2 роки тому

      There is nothing counter intuitive there. High temperature body emits faster energy. The body cools down as it releases energy and therefore the temperature drops and energy flow becomes slower. Regarding the 4th power temperature, the formula can be derived by integration of the equation of Max Placnk black body radiation curve.

  • @amiraliejlali8120
    @amiraliejlali8120 3 роки тому

    Amazing Amazing Amazing work, Bravo!

  • @simpletalk8012
    @simpletalk8012 3 роки тому

    The video is beyond imagination!!! Could you tell me please which software you use to make these cool videos?

  • @raniemaharanie53
    @raniemaharanie53 3 роки тому +1

    You should do heat transfer series!!! As always, your video is awesome!!!

  • @MrAnmh
    @MrAnmh Рік тому +1

    may be you can make 1 more convection to complete 03 heat transfer modes :D

  • @ajaykumar-ij9jx
    @ajaykumar-ij9jx 3 роки тому

    Great animation bro

  • @alexrushing9010
    @alexrushing9010 3 роки тому

    Your videos are awesome! You should make one on compressible flow

  • @dbtwenty8
    @dbtwenty8 4 місяці тому

    thank you so much, this video is brilliant

  • @Bobsry16
    @Bobsry16 3 роки тому

    Thanks for this video! This gets more complicated when you have to account for luminescence and it's options of other electron related light emission.

    • @melaniecotterell8263
      @melaniecotterell8263 3 роки тому

      If you're accounting for luminescense you may be cutting things a bit too close. Give yourself enough margin so you don't have to worry about that shit. When it crashes I'd hate to be the one who miscalculated the luminescense. Poor pilot didn't have enough light to navigate around the obstacles. Too much luminescense will get you a headlight ticket. Always best just to go stealth when space truckin'. Look at those stars.

  • @_MITALIDIWEKAR
    @_MITALIDIWEKAR Рік тому

    Can we have an amazing video just like this on convection?

  • @anirbandas4201
    @anirbandas4201 3 роки тому

    Really nice and well explained video. Kindly make one video on radiation with participating medium.

  • @engineer-x7419
    @engineer-x7419 3 роки тому

    Great explanation

  • @quantumcomputing832
    @quantumcomputing832 3 роки тому

    Awesome 👍. Very detailed

  • @cloud42269
    @cloud42269 3 роки тому

    Amazing work