HG Wells, here we come

Discussion in 'The Lounge - Off Topic' started by tripwire45, Aug 12, 2008.

  1. tripwire45
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    tripwire45 Zettabyte Poster

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    If you would put on a suit that made you completely invisible, what would you do?

    http://news.bbc.co.uk/2/hi/science/nature/7553061.stm
     
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  2. JoshC

    JoshC Bit Poster

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    now the question is, can you see out of it?

    if light goes straight past the cloak, then how do your eyes see anything?
     
  3. Wiz

    Wiz Bit Poster

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    I'd show everyone...Oh wait i cant...;)
     
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  4. postman

    postman Byte Poster

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    :eek:One of the big holes in cloaking devices used in sci-fi.
    But The Invisible Man tv show from 2000 had something about being able to see.
     
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  5. tripwire45
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    tripwire45 Zettabyte Poster

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    In the SciFi channel's version of the Invisible Man, Darien could see using other forms of light besides visible light, such as ultraviolet (I think). Anyway, "Quicksilver vision" gave a different perspective of his environment than normal vision. That's about the only way it would work. Otherwise, no light gets to the eye of the invisible person and they're effectively blind.

    Where they did goof is that, in order to defeat being detected by infra-red, the Quicksilver covering Darien's body that bent light, also didn't absorb heat, so its surface temperature was quite cold. What that also meant was that Darien couldn't get rid of any body heat. He would have lost consciousness and even died in short order as a result.

    So...if it were possible *and* you could see and all that, what *would* you do with invisibility?
     
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  6. postman

    postman Byte Poster

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    Too many things that would get me into trouble:oops: Think Kevin Bacon and you'll get the idea:eek:
     
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  7. NightWalker

    NightWalker Gigabyte Poster

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    Not really. In Sci-Fi shows like Star Trek et al the people inside the space ship don't see where they are going through a window, it’s all on a massive display screen on the bridge. The image of what's outside the cloak does not necessarily need to be created by viewing light from the visible spectrum with something like a video camera, then showing that on the screen. Various sensors that don't use light in the visible spectrum to gather information could be used to create a visual representation on the display screen inside the ship, with computers converting the sensor data into what we would perceive to be a normal image comparable to what you would see if looking out the window. Sensors that don’t sample light in the visible spectrum would be able to operate from inside a cloaking device without any negative effect; the frequencies they work in would not be affected by the cloak, which only manipulates visible light in this case. In Sci-Fi the cloak also obscures other things, like heat and engine output signatures. The same principle can be applied in these cases, as long as your sensors don’t sample in a frequency range your cloaking device manipulates, you can obtain a picture of what’s outside successfully.

    Another story in the news today reinforces this: http://news.bbc.co.uk/1/hi/technology/7553622.stm
    Although still using light in this case, lenses and mirrors are not used, rather a grid of holes is used to capture shadows in a technique called 'coded aperture imaging' and software generates the final image. Add a few hundred years of technical advancement to this and cloaking device technology and you have a functioning Star Trek style cloak and can see beyond it.
     
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  8. tripwire45
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    tripwire45 Zettabyte Poster

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    This is it! :ohmy

    [​IMG]
     
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  9. Mr.Cheeks

    Mr.Cheeks 1st ever Gold Member! Gold Member

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  10. nugget
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    Lot's of chubbies involved I'd imagine?
     
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