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Lighting bulbs with magnetic fields

  1. Feb 28, 2008 #1
    This guy seems to have done something like that: http://gizmodo.com/361390/1301-florescent-bulbs-lit-solely-by-magnetic-fields

    Now.. what i was thinking is that.. how could he have done that? The power lines carry alternating current allright and it's a changing current, so it produces a changing magnetic field near the ends of a given lamp.. but will that be enough to create an emf across the tube that can give out so much light?
     
  2. jcsd
  3. Feb 28, 2008 #2

    russ_watters

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    Staff: Mentor

    Apparently it is. I wonder if he got permission from the power company to do that "art"...
     
  4. Feb 28, 2008 #3

    berkeman

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    Staff: Mentor

    Even though it says magnetic fields, I think it's the E-field that actually doing it. The gradient from the power lines above to the ground below.
     
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