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Stories about: refraction |
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All previous invisibility cloak projects claimed at some point in time that a three-dimensional optical light cloak can be built. I won't deny that this is true, although I haven't bumped into any invisible objects lately which leads me to believe that this attempt has failed. Now, a new three-dimensional o... |
13 May 2008 10:49 GMT |
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Metamaterials have the unique capability of experiencing negative refractive indexes, thus literally refracting light through themselves without reflecting any to the source, therefore making any object hidden behind it invisible. This is not available only for light, acoustic waves can be also manipulated in similar... |
1 April 2008 11:09 GMT |
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Invisibility cloaks and ultra-fast computers could one day be powered by such an exotic device, however, multiple problems need to be solved before these crystals become useful. Several metamaterials have been designed over the years, but the technological process involved in building them presents multiple technolog... |
18 December 2007 08:57 GMT |
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OK. So, you're walking alone through the desert as a result of an accident and you are trying to get back to civilization. Suddenly you observe a water-like feature a few hundred meters in front of you and you don't know if what you see is real. You have three possibilities. One, you are dillusional as a re... |
14 December 2007 05:43 GMT |
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The glass or plastic lenses in your eyeglasses redirect, or bend light into the right direction to focus it when your own eyes are no longer capable of doing so.When looking through a lens that is not fitted to your eye, the image looks distorted to a small angle, exactly like looking at a straw emerged half way in w... |
24 March 2007 08:35 GMT |
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