meissner effect explanation (basic)

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  • เผยแพร่เมื่อ 28 ส.ค. 2024
  • A follow up to my Meissner demonstration ( • Meissner Effect demons... )
    I run through a basic explanation, without involving quantum physics, to explain why the magnet levitates
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ความคิดเห็น • 66

  • @emmay3241
    @emmay3241 4 ปีที่แล้ว +75

    here I am in the final year of college for engineering and the first thing this video says is "high school physics explained"
    aight just gonna put me in my place like that huh

    • @passiveaggressiveflamingo6851
      @passiveaggressiveflamingo6851 3 ปีที่แล้ว +3

      Oh thank gawd! Actually, thank YOU, for your honesty, friend. I felt rather deflated by this, too!

    • @naman4067
      @naman4067 2 ปีที่แล้ว

      No its not high school

  • @del7920
    @del7920 5 ปีที่แล้ว +12

    Your explanation of complex physics phenomena is phenomenal

    • @mainlymusicman
      @mainlymusicman 9 หลายเดือนก่อน

      are you kidding? it sucked. he explained nothing

  • @chizumarvel9971
    @chizumarvel9971 6 ปีที่แล้ว +26

    I came here from Aldnoah Zero. Thanks a lot!😀

  • @BlasonDuo
    @BlasonDuo 7 ปีที่แล้ว +13

    Please keep these ideas to implementation topics going! These are great!!

  • @payelchatterjee5537
    @payelchatterjee5537 6 ปีที่แล้ว +6

    This is how a teacher should teach in the class..thank you Sir.

    • @riyazuddin6743
      @riyazuddin6743 4 ปีที่แล้ว

      👍 enjoye... Once again today

  • @kjellprytz1911
    @kjellprytz1911 5 ปีที่แล้ว +1

    This is no explanation at all, it is rather a description of the Meissner effect, although a very beautiful one. I appreciate the video, very nice. Thank you.

  • @zainabadnan7677
    @zainabadnan7677 4 ปีที่แล้ว +3

    Im in my 2 year of engineering and this was v helpful!!

    • @PhysicsHigh
      @PhysicsHigh  4 ปีที่แล้ว +1

      I’m glad it helped. Thanks

  • @ThomasBrennan-iv5pd
    @ThomasBrennan-iv5pd 4 หลายเดือนก่อน

    I am about two weeks from graduating with a degree in physics. I looked up this video to give me a refresher on the Meissner effect for a paper I'm writing about superconductors. I cannot even express the rage I felt when he said "high school physics".

    • @PhysicsHigh
      @PhysicsHigh  4 หลายเดือนก่อน +1

      Why?
      when I produced this video, the curriculum here in Australia included a section on superconductivity. Hence I made this video. Of course, for High school, It is a very light on the quantum mechanical explanations.

  • @adinameissner2271
    @adinameissner2271 6 ปีที่แล้ว +35

    I'm a great superconductor, I love connecting people! Not so good when I'm cold though...

    • @mayankkr.246
      @mayankkr.246 5 ปีที่แล้ว +3

      apt last name

    • @thetafritz9868
      @thetafritz9868 ปีที่แล้ว

      The other way around, not so good when you’re not cold

  • @mahi581993best
    @mahi581993best 3 ปีที่แล้ว +1

    Thank you, sir! for the Great Explanation and demonstration as well.

  • @oumybenh5031
    @oumybenh5031 5 ปีที่แล้ว +8

    hello ,i want to thank you first for your amazing efforts in simplifying physics. I am a university student and i am doing research about the different ways or realizing a magnetic levitation , i found your video that i found super interesting , it helped me understanding the meissner effet concept in global however i do need more infomation to suply my argumentation , can you please provide me with links of lectures or articles giving explanations with more quantum mechanics details ?

  • @juliafraa6419
    @juliafraa6419 ปีที่แล้ว +1

    Honestly I'm still very confused. What is an eddy current? Why does one get formed and how? I still don't get what force locks it in place. I'm guessing I just would have to learn more details on quantum physics to actually understand

  • @MuhammadAli-ii2ll
    @MuhammadAli-ii2ll 3 ปีที่แล้ว +1

    Very well explained 👍 thanks

  • @poliopeti
    @poliopeti 9 หลายเดือนก่อน

    What if you turn the setup upside down? Superconductor is above, magnet is below. The gravitation would still pull the magnet down. On the other hand, magnetic field lines and eddie currents would be symmetric to turning the whole setup upside down, so the superconductor would still repel the magnet below it, which is again force acting downwards, thus, in this case it would not cancel the gravitation, but add to it, and the magnet would fall to the ground, right?

  • @dastardlygardengnome996
    @dastardlygardengnome996 3 ปีที่แล้ว +1

    So, the superconductor material starts to move while it's at critical temperature which would cause the magnet to repel itself from the material? Is my explanation of it accurate? I am confused as to what an Eddy current is and I'm also confused about how one would make a superconductor with Oxygen. Though I think you use very pressurized Oxygen that has turned into a critical fluid if I'm not mistaken? I'm not a physics major but, I did start reading Michio Kaku's book called Imagining the Impossible, and he mentions the Meissner effect being used to make superconductors that can theoretically raise a car or other vehicles up in the air. I think that would actually require us to do a sort of overhaul in the highways we have already or it would require magnets so sensitive that it could use the traces of iron and other metals that are naturally present in the planet in order to repel itself strong enough to levitate?

    • @dastardlygardengnome996
      @dastardlygardengnome996 3 ปีที่แล้ว

      Well, its electrons start moving at a rate where an artificial magnetic field would be made so that the magnets sitting on it would start levitating. Would that effect be made after just heating it up and cooling it down rapidly?

  • @crimsonkiras
    @crimsonkiras 7 ปีที่แล้ว +1

    thank you!! this helped me understand it very well :)

  • @abhinavrawat3223
    @abhinavrawat3223 6 ปีที่แล้ว +1

    That helped me lot.
    Thanks

  • @Chanakya06
    @Chanakya06 4 ปีที่แล้ว +1

    thank you that was very helpfull.

  • @petergambier
    @petergambier 4 ปีที่แล้ว

    I once heard that once you think you understand quantum mechanic's you don't understand quantum mechanic's, so how can you explain quantum phenomena if we don't understand quantum phenomena and flux pinning?

  • @williamcrosby1061
    @williamcrosby1061 2 ปีที่แล้ว

    I want to know how super conducting magnets interact with each other... like why is there all these repeated examples of floating magnet experiments but nobody ever goes the super conductor on super conductor route or explains why that would potentially be pointless. I would also like to know the ways a super conductor can be shut off or discharged (speed/efficiency).

  • @HK-dx9yv
    @HK-dx9yv 3 ปีที่แล้ว

    If the induced magnetic field opposes or cancels out the applied field, it means the total magnetic field should decrease but we know as the bulk starts expelling magnetic field, the outer Field linearly increases, thus remains conserved.
    Please answer, it expels or opposes?

    • @abdulkadirbiffo8937
      @abdulkadirbiffo8937 3 ปีที่แล้ว

      The induced magnetic field expels the applied magnetic field from travelling through the SC material. In this case, the applied magnetic field exponentially decays as it penetrates into the SC material, B = Ba*exp(-x/London penetration depth).
      The London penetration depth tells the length at which the applied magnetic field gets cancelled/expelled by the induced magnetic.

  • @Lambchop6341
    @Lambchop6341 7 ปีที่แล้ว +1

    Thank you very much :D

  • @SkyRaker77
    @SkyRaker77 3 ปีที่แล้ว

    So if it’s not below the temperature point where the magnetic fields are not expelled, does that mean in a real scenario the small magnet would just repel and pop off the superconductor flying into a corner?

    • @PhysicsHigh
      @PhysicsHigh  3 ปีที่แล้ว

      If it doesn’t reach critical temp the magnet just sits there

  • @simozy4475
    @simozy4475 9 หลายเดือนก่อน

    How eddy current can be produced without change in flux

  • @iancobb4688
    @iancobb4688 ปีที่แล้ว

    "high school physics" being watched by this Senior EE student lol

  • @bokwoon
    @bokwoon ปีที่แล้ว +3

    LK-99

  • @Oblithian
    @Oblithian ปีที่แล้ว

    super magnetic or super conductor?

  • @gurbirdahiya7405
    @gurbirdahiya7405 6 ปีที่แล้ว

    good lecture...

  • @atharvadeodhar5332
    @atharvadeodhar5332 6 ปีที่แล้ว +1

    Woah!

  • @mrbetaanimals
    @mrbetaanimals 8 หลายเดือนก่อน +1

    Professer Severus Snape

  • @akshinbarathi8914
    @akshinbarathi8914 3 ปีที่แล้ว

    the eddy currents formed in the superconductor are a result of lens law and then the quantun locking is how the lectrons travel in the super conductore, so does that mean that quantun locked electrons exist in that eddy currents?
    PLEASE REPLY SIR and thank you so much for your phenomenal video🙏

  • @shamannurse2622
    @shamannurse2622 2 ปีที่แล้ว

    Thanks for the explanation but i think half of your student will sleep

  • @minusbaba
    @minusbaba 3 ปีที่แล้ว

    when Bernoulli theorem comes into magnetism with a different name!

  • @sherinechu1264
    @sherinechu1264 6 ปีที่แล้ว +1

    I love your accents.

  • @baldr2510
    @baldr2510 ปีที่แล้ว

    I really don't like how its talking about magnetic field lines as a physical thing.

  • @emmay3241
    @emmay3241 4 ปีที่แล้ว

    it would be nice if someone worked on the captions so they were actually coherent
    it seems to think you're saying "my snow" instead of "meissner"

  • @nehemiahjuan950
    @nehemiahjuan950 2 หลายเดือนก่อน

    Antigravity

  • @AustinBrenneman
    @AustinBrenneman ปีที่แล้ว +1

    Who else is here because of LK-99?

  • @dragonfly9786
    @dragonfly9786 3 ปีที่แล้ว

    0:15
    why a magnetic levitates above a super magnet?
    this question is not so puzzling as magnets have the capacity to repel each other when similar poles face each other.

    • @TheAbsolutMango
      @TheAbsolutMango 3 ปีที่แล้ว +1

      However that piece of metal which is being levitated is not a magnet. In fact since superconductors are perfect diamagnets it's magnetic moment is exactly zero! That's why we need a different approach to explain how that piece of superconducting metal is "trapped" inside those magnetic field lines.

    • @dragonfly9786
      @dragonfly9786 3 ปีที่แล้ว

      @@TheAbsolutMangoYour first sentence : "However that piece of metal which is being levitated is not a magnet." itself tells why I made my original comment. That is to say, the narrator would have said: 'why a non-magnet levitates over a super-magnet' or 'why some materials behave like magnets below a certain temperature' something like that.

    • @dragonfly9786
      @dragonfly9786 3 ปีที่แล้ว

      All i am trying to point out is the choice of words.

  • @abdulvarisvk1884
    @abdulvarisvk1884 7 ปีที่แล้ว +1

    ytu

  • @macdemarcoradio
    @macdemarcoradio 4 หลายเดือนก่อน

    come to the point please

  • @PayasTheGod
    @PayasTheGod 6 ปีที่แล้ว +6

    Not accurate.

    • @PhysicsHigh
      @PhysicsHigh  6 ปีที่แล้ว +2

      Care to explain

    • @outofbox000
      @outofbox000 6 ปีที่แล้ว

      Douchbag

    • @PayasTheGod
      @PayasTheGod 5 ปีที่แล้ว +1

      @@PhysicsHigh . This is not accurate sir . This is because when you showed the levitating magnetic . You can see that the magnet was already on superconductor before cooling . This contradicts your statement as how a stationary magnet can produce changing magnetic fields and how it can produce Eddy current . Even Faraday's law prohabits that

    • @PhysicsHigh
      @PhysicsHigh  5 ปีที่แล้ว +2

      The meissner effect is just that.
      It expels magnetic field as disk drops below critical temperature. Thus you have moving magnetic field lines without the physical magnet moving.

    • @PayasTheGod
      @PayasTheGod 4 ปีที่แล้ว

      @@PhysicsHigh still thank you very much sir. I loved your demonstration .