Recent content by mach990

  1. M

    Superconductive Electromagnets

    Ok, I will look at the Wikipedia article on them. I think I glanced at it once, but never thoroughly read it. Yes, I was sort of thinking of a coating that would be applied to the bottom of the hovercraft, and also a coating to be applied to the roads (Or a structure of CNTs built onto the...
  2. M

    Superconductive Electromagnets

    Well, I doubt it. That's why I said hypothetical. Who knows though? In some ways, it might be practical. But a lot can happen in a while. After all, technology grows exponentially, so it might not cost in the 6 billion dollar range... But I know, it wouldn't be practical now or soon. I...
  3. M

    Superconductive Electromagnets

    Any idea what that limit is? Would it be powerful enough for lots of the magnets to lift a minivan size thing into the air? Well, I figured that with the nanotubes you'd be able to rotate them a little bit in order to steer the vehicle. Would ceramic plates be able to tilt enough to provide...
  4. M

    Superconductive Electromagnets

    Hi everyone, I was wondering a little about superconductive electromagnets. Somewhere, I heard that Carbon Nanotubes had special properties, one of which is that they're superconductors (something to do with some quantum effect or another). Anyways, I was wondering, could you make a...
  5. M

    Doppler Effect on Light: Understanding Red and Blue Shifts in Galaxies

    Hi, I'm new to these forums. I just had a question about the Doppler effect on light (red and blue shifts of light). I've read how it is supposed to work, but I also read in a book that the speed of light is constant in all moving frames. So if you've got a galaxy moving towards you, and...
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