Superconducting in the Antartic...

Discussion in 'General Electronics Chat' started by cmartinez, Aug 17, 2015.

  1. cmartinez

    Thread Starter AAC Fanatic!

    Jan 17, 2007
    3,572
    2,535
  2. WBahn

    Moderator

    Mar 31, 2012
    17,737
    4,789
    Did you notice that they had to use a pressure of 1.6 million times atmospheric pressure?

    Also, having a critical temperature of T does not mean that it is a usable superconductor at T -- in fact, by definition it means that it can carry zero current and must be in the presence of zero magnetic field to be in the superconducting state.

    As for domestic applications of superconductors in your lifetime -- ever heard of an MRI machine?

    Guess it depends on what you mean by "domestic" applications.
     
    cmartinez likes this.
  3. cmartinez

    Thread Starter AAC Fanatic!

    Jan 17, 2007
    3,572
    2,535
    Yes I did. The sort of "feat" they're proclaiming is not practical in the real world... just yet. Still pretty impressive don't you think?
    And what I meant by domestic is an application that I'd like to see at home... just like lasers were unimaginable for the average Joe in the 1950's... I don't know, maybe a community superconducting hoverboard ring for our great-grandchildren?
     
  4. WBahn

    Moderator

    Mar 31, 2012
    17,737
    4,789
    I was just trying to think of domestic applications of lasers and realized that I can't think of very many. Laser pointers, distance measures, and levels are all that come to mind. I guess laser printers are probably a biggie along with CD/DVD/BD reader/writers. Seems like there must be others. We interact with barcode scanners a lot, but not at home. What other applications can you think of?
     
  5. absf

    Senior Member

    Dec 29, 2010
    1,492
    372
    A laser CNC machine perhaps. My friend uses it to cut .1" plaster sheets and also making PCBs.

    Allen
     
  6. tjohnson

    Active Member

    Dec 23, 2014
    614
    121
    Doesn't an optical mouse have a laser LED in it? It's certainly a domestic application.
     
    cmartinez likes this.
  7. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Laser printers, bar code scanners
     
  8. Sparky49

    Active Member

    Jul 16, 2011
    834
    417
    Fibre optics and laser printers.
     
  9. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Steroe Fiber
     
  10. tracecom

    AAC Fanatic!

    Apr 16, 2010
    3,869
    1,393
    Blinding airplane pilots.
     
    Dr.killjoy likes this.
  11. WBahn

    Moderator

    Mar 31, 2012
    17,737
    4,789
    I don't know that a laser CNC machine would qualify as a "domestic application".
     
  12. WBahn

    Moderator

    Mar 31, 2012
    17,737
    4,789
    Mentioned laser printers. Also mentioned bar code scanners, but I don't think they qualify as a "domestic application".
     
  13. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Yeah, nowdays we scan with cameras on cell phones.

    Laser printers are a major application, I suspect a lot of homes have them.
     
  14. WBahn

    Moderator

    Mar 31, 2012
    17,737
    4,789
    My understanding is that if you can see the light, it is just a red LED. If you can't, then it is likely an infrared laser diode. They haven't been around too long and I don't know how common they are, but I would definitely say they qualify as a domestic application, even if one that has not really taken off yet. I'm sure they will.
     
  15. WBahn

    Moderator

    Mar 31, 2012
    17,737
    4,789
    I don't think households ever had laser barcode scanners (aside from the rare technophile, which doesn't count). But I agree that laser printers are a major case, which is why I said that they were probably a biggie.
     
  16. WBahn

    Moderator

    Mar 31, 2012
    17,737
    4,789
    Fiber optics is probably legitimate, though I don't know how many homes have any fiber at all. I think the trend in stereo systems is away from the fiber connections, but I don't follow it so I could well be wrong. But even if they don't have much inside the house, communication service up to the house is increasingly going fiber and I would think that that would be close enough to making it a domestic application.
     
    cmartinez likes this.
  17. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    Laser range finders, to replace tape measures. Wonder if digital camera use them?
     
  18. Gdrumm

    Distinguished Member

    Aug 29, 2008
    684
    36
    Maybe we will eventually have Light Sabers, Flux Capaitors, and Beam Me Up Scotty devices.

    I am amazed at new technology, like 3D Printing.

    Is that Laser in any way?
     
  19. cmartinez

    Thread Starter AAC Fanatic!

    Jan 17, 2007
    3,572
    2,535
    3D printing evolved from a previous process called stereo-lithography, in which a laser helped solidify a liquid polymer in a container one layer at a time. 3d printing works pretty much the same, but using powdered materials instead, like thermoplastics, polymers and metals.
     
  20. tshuck

    Well-Known Member

    Oct 18, 2012
    3,531
    675
    I've seen some garage door obstacle sensors with lasers, though it could just be a focused beam...
     
Loading...