A little closer to invisibilty.

Researchers at MIT and the University of Birmingham have altered calcite, a crystal form of calcium carbonate usually found in seashells to make small objects ( such as a paperclip) invisible. While it is currently only in a 2D stage, they have their theories on how 3-dimensional cloaking will work.

Read the story here :http://www.popsci.com/science/article/2011-02/using-special-crystals-researchers-achieve-true-invisibility-visual-spectrum


and here is the paper clip:

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