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Thread: Scientists ponder invisibility cloak

  1. #1
    and your little dog too
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    Default Scientists ponder invisibility cloak

    from yahoo

    By ANDREW BRIDGES, Associated Press Writer
    Fri May 26, 7:16 PM ET

    WASHINGTON - Imagine an invisibility cloak that works just like the one Harry Potter inherited from his father. Researchers in England and the United States think they know how to do that. They are laying out the blueprint and calling for help in developing the exotic materials needed to build a cloak.

    The keys are special manmade materials, unlike any in nature or the Hogwarts School of Witchcraft and Wizardry. These materials are intended to steer light and other forms of electromagnetic radiation around an object, rendering it as invisible as something tucked into a hole in space.

    "Is it science fiction? Well, it's theory and that already is not science fiction. It's theoretically possible to do all these Harry Potter things, but what's standing in the way is our engineering capabilities," said John Pendry, a physicist at the Imperial College London.

    Details of the study, which Pendry co-wrote, appear in Thursday's online edition of the journal Science.

    Scientists not involved in the work said it presents a solid case for making invisibility an attainable goal.

    "This is very interesting science and a very interesting idea and it is supported on a great mathematical and physical basis," said Nader Engheta, a professor of electrical and systems engineering at the University of Pennsylvania. Engheta has done his own work on invisibility using novel materials called metamaterials.

    Pendry and his co-authors also propose using metamaterials because they can be tuned to bend electromagnetic radiation — radio waves and visible light, for example — in any direction.

    A cloak made of those materials, with a structure designed down to the submicroscopic scale, would neither reflect light nor cast a shadow.

    Instead, like a river streaming around a smooth boulder, light and all other forms of electromagnetic radiation would strike the cloak and simply flow around it, continuing on as if it never bumped up against an obstacle. That would give an onlooker the apparent ability to peer right through the cloak, with everything tucked inside concealed from view.

    "Yes, you could actually make someone invisible as long as someone wears a cloak made of this material," said Patanjali Parimi, a Northeastern University physicist and design engineer at Chelton Microwave Corp. in Bolton, Mass. Parimi was not involved in the research.

    Such a cloak does not exist, but early versions that could mask microwaves and other forms of electromagnetic radiation could be as close as 18 months away, Pendry said. He said the study was "an invitation to come and play with these new ideas."

    "We will have a cloak after not too long," he said.

    The Pentagon's Defense Advanced Research Projects Agency supported the research, given the obvious military applications of such stealthy technology.

    While Harry Potter could wear his cloak to skulk around Hogwarts, a real-world version probably would not be something just to be thrown on, Pendry said.

    "To be realistic, it's going to be fairly thick. Cloak is a misnomer. 'Shield' might be more appropriate," he said.

  2. #2
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    Default Re: Scientists ponder invisibility cloak

    And no one plays AD &D my ass lol ....

  3. #3

    Default Re: Scientists ponder invisibility cloak

    yay..just what we need..it falling into the wrong hands of bank robbers and serial killers.... they cant even find bin laden..sheesh. this almost endorses terrorism

  4. #4
    Pull~My~Hair's Avatar makes your life seem good
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    Default Re: Scientists ponder invisibility cloak

    think they'll sell them on ebay? I want one

  5. #5
    Bondage Clown's Avatar Butter up da Goat
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    Default Re: Scientists ponder invisibility cloak

    I would want one.. then i could go places and do things that I would never get to do.. Like live like a rock star

  6. #6
    Pull~My~Hair's Avatar makes your life seem good
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    Default Re: Scientists ponder invisibility cloak

    Quote Originally Posted by Bondage Clown
    I would want one.. then i could go places and do things that I would never get to do.. Like live like a rock star
    i could spy on people, and I would just sit and wear it in the living room while I watch tv. so Kaden would leave me alone lol

    oh and, id get like a big box and put it in the middle of the sidewalk and cover it with the cloak, just to watch peole run into it lol

  7. #7

    Default Re: Scientists ponder invisibility cloak

    http://www.mosnews.com/news/2006/01/...darkness.shtml

    check the video from the Japanese from a couple of years ago who did almost the same thing, should give you an idea: http://www.m90.org/index.php?id=10721

    http://fpidocument.blogspot.com/2005...echnology.html another cool video

    this is how it works http://science.howstuffworks.com/inv...ity-cloak3.htm

    enjoy

  8. #8
    Mr Karl's Avatar Senior Member
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    Default Re: Scientists ponder invisibility cloak

    I just wonder what knids of cancer an invisibility cloak would cause, but hey, I'd be able to smoke in the bar again

  9. #9

    Default Re: Scientists ponder invisibility cloak

    Quote Originally Posted by Mr Karl
    I just wonder what knids of cancer an invisibility cloak would cause, but hey, I'd be able to smoke in the bar again
    until they see a strange puffs of smoke and try to extinguish you hehe.

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