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"Quantum" Levitation

Discussion in 'Off Topic' started by zack, Oct 17, 2011.

  1. zack

    zack Member

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    #1 zack, Oct 17, 2011
    Last edited by a moderator: Mar 13, 2016
    So feel free to move this if it isn't appropriate. I'm personally blown away by this demonstration of a magnet cooled with liquid nitrogen floating over different arrays of room-temp magnets.

     
  2. AnOutsider

    AnOutsider S532 # XS27

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    That was indeed friggin cool! Looked like a UFO when the started around the circle
     
  3. Mycroft

    Mycroft Life happens

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    :scared: WOW! I thought I knew all about floating superconducting magnets. I was wrong! That was not only literally cool, but frickin amazing!!!
     
  4. zack

    zack Member

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    I was misinformed. Here's an explanation of the physics.
     
  5. JRP3

    JRP3 Hyperactive Member

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    Insane :confused::biggrin:
     
  6. JRP3

    JRP3 Hyperactive Member

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    #6 JRP3, Oct 22, 2011
    Last edited by a moderator: Mar 13, 2016
    Double levitation and more
     
  7. TEG

    TEG TMC Moderator

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    Gone viral for sure. Lots of people talking about those videos...
     
  8. zack

    zack Member

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    Yep. 4+ million views.
     
  9. dpeilow

    dpeilow Moderator

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    #9 dpeilow, Oct 23, 2011
    Last edited by a moderator: Mar 13, 2016
     
  10. zack

    zack Member

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    Excellent!
     
  11. doug

    doug Administrator / Head Moderator

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    I saw the OP vid and was a little annoyed by it. I don't like the language their using. YBCO superconductors are not new. In fact we made them by hand (with a pestle and mortar) in my freshman chemistry class during undergrad. That they can deposit the material as a thin film on a substrate is pretty cool. But using terms like "quantum locking" and "quantum levitation" is a bit much.
     
  12. JRP3

    JRP3 Hyperactive Member

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    So what terms should be used? It's obviously not simple magnetic repulsion at work since the objects would not stay in place or on the track.
     
  13. doug

    doug Administrator / Head Moderator

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    Meissner effect and flux pinning.
     
  14. TEG

    TEG TMC Moderator

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    They just put some "spin" on it...
     
  15. JRP3

    JRP3 Hyperactive Member

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    Quantum locking sounds "cooler" :biggrin:
     
  16. doug

    doug Administrator / Head Moderator

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    <groan>

    "Magnetic levitation" (through the Meissner effect) is descriptive and accurate (and cool!) enough. "Quantum locking" isn't particularly descriptive, and without context I would guess it had something to do with quantum cryptography. Where as "flux pinning" actually means something and begins to give a picture of what's going on. Who knows what "quantum levitation" means? To me it implies something involving entanglement (what Einstien called "spooky action at a distance"), but that doesn't really apply here.

    I don't like the misuse of "quantum" as a marketing term. For example, it annoys me that the company Fisker partnered with on their drivetrain is called Quantum Technologies. What, are they working on quantum teleportation?? I don't think so.
    Reminds me of this Larry Krauss article: A Year of Living Dangerously: Reflections on Hot-Button Science: Scientific American
     
  17. TEG

    TEG TMC Moderator

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  18. vfx

    vfx Well-Known Member

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  19. doug

    doug Administrator / Head Moderator

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    #20 doug, Oct 26, 2011
    Last edited by a moderator: Mar 13, 2016

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