TIME HOLE

Discussion in 'News' started by beefrave, Jan 4, 2012.

  1. beefrave

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    Soldiers could one day conduct covert operations in complete secrecy, now that Pentagon-backed physicists have figured out how to mask entire events by distorting light.
    A team at Cornell University, with support from Darpa, the Pentagon’s out-there research arm, managed to hide an event for 40 picoseconds (those are trillionths of seconds, if you’re counting). They’ve published their groundbreaking research in this week’s edition of the journal Nature.

    This is the first time that scientists have succeeded in masking an event, though research teams have in recent years made remarkable strides in cloaking objects. Researchers at the University of Texas, Dallas, last year harnessed the mirage effect to make objects vanish. And in 2010, physicists at the University of St. Andrews made leaps towards using metamaterials to trick human eyes into not seeing what was right in front of them.
    Masking an object entails bending light around that object. If the light doesn’t actually hit an object, then that object won’t be visible to the human eye.
    Where events are concerned, concealment relies on changing the speed of light. Light that’s emitted from actions, as they happen, is what allows us to see those actions happen. Usually, that light comes in a constant flow. What Cornell researchers did, in simple terms, is tweak that ongoing flow of light — just for a mere iota of time — so that an event could transpire without being observable.
    The entire experiment occurred inside a fiber optics cable. Researchers passed a beam of green light down the cable, and had it move through a lens that split the light into two frequencies, one moving slowly and the other faster. As that was happening, they shot a red laser through the beams. Since the laser “shooting” occurred during a teeny, tiny time gap, it was imperceptible.
    Sure, the team’s got a ways to go before they’re able to mask 30 seconds of action, let alone several minutes. But the research certainly opens up new possibilities. For one, masking super-quick events, like those that occur with data transmission, could help conceal covert computer operations.
    In the words of Nature editors, the research marks “a significant step towards full spatio-temporal cloaking.” But it could be decades before military personnel will basically be able to zap history, as it happens: According to Cornell scientists, it’d take a machine 18,600 miles long to produce a time mask that lasts a single second.

    TIMEHOLE
     
  2. MrGask

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    Cool concept, mainly for data insertion.
     
  3. Zaichata

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    The invisibility itself is invisible. How very ironic. It is going to take yeaaaaaaaaaars before we actually accomplish anything that can have a practical use in the military.
     
  4. Tom

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    Neat
     
  5. Nouble Digger

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    This will go nicely along side other projects that failed to bring sci-fi into reality.
     
  6. Baya Rae 4900

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    It'll be interesting to see what terrorists will do with this technology.
     
  7. HyperHominid

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    I could imagine it having to do with Airplanes flying into things. A lotta things called buildings.
     
  8. MrGask

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    Been done. Al Qieda has already succeeded, in that it has galvanized society to such an extent that people are forced to chose one side or the other.
     
  9. ExplosiveDiareah

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    Time hole, you stick your dick in one end and rub back and forth and come out 5 minutes later.

    also this whole research is a useless waste of time.
    Cloaks will never work, because there will allways be a distortion that is visible up close, from the light being bent,
    plus such expensive and complicated technology can easily be negated with.
    Carpet, dust, smoke, water.

    anything that would react to a physical presence with compression physical or not.
     
  10. MrGask

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    You didn't read the article, did you?
     
  11. ExplosiveDiareah

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    I did, all of it.
    and it all sounds like a load of bullshit, they just want more funding, even though this has no chance of being developed into a cloaking device for soldiers.

    from the basis of this experiment it sounds like you need light beams from a source to be able to alter this time flow, then you have to deal with relativity of time dialation, will the person be affected or just the light they emit?
    does a subject that is frozen or slowed down in time still appear? they are matter, so light would slow down, if it intersected the area where the time differential theshold is present.
    Shit man,
    you would still notice the effects that something is there,
    the point of cloaking is to make it look like you were never there.
    for all the money that would be wasted on this research and having to have a room setup to make someone invisible because i cannot see this being applied to portable generators or personal suits, or whatever, it may as well be mirrors, you can generate semi convincing invisibility with mirrors, i might go and show you the picture of the concept.

    TL;DR i do have a good understanding about this, but it sounds like sensationalistic bullshit, and they claimed to have masked an "event" what events they are talking about, i am not sure, but according to them the lightwaves at different frequencies caused a fraction of a fraction of a second or some shit to be cloaked.
     
  12. MrGask

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    It is not for masking persons, places, or things, it is for masking data transmission. Yes, it sucks now, but could conceivably be developed into something useful.
    Makes me wish I had a subscription to Nature.
     
  13. ExplosiveDiareah

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    if the data transmission can be received by the intended recipient then it would useful as it would add a whole new level of safety and security to the whole thing.

    otherwise, it would be the same thing as destroying information in transit.
     
  14. CallMeMaggot

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    Next 9/11 with invisible airplanes filled with invisible snakes

    That would be disconcerting