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How To See Through an Invisibility Cloak

AMESN writes "Ways to bend light around objects and render them invisible are becoming a major field of scientific study and gaining ground. While no actual invisibility cloak exists yet, researchers are also theorizing on how to beat the perfect cloak."

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  1. flour? by korney · · Score: 2, Interesting

    > While no actual invisibility cloak exists yet, researchers are also theorizing on how to beat the perfect cloak."

    How about flour and water? This reminds me of a joke...

  2. Re:Why worry? by Anonymous Coward · · Score: 1, Interesting

    Active camouflage need only require that you emit the same light passing through. If you have a versatile enough emitter, you could absorb some light to observe and emit the rest on the other side. Thus you can have a perfect active cloak PLUS be able to observe as well. Net energy has to be around zero, so you'll be burning power to run it, but it's better than blindness.