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Math Sci-Fi Science

Mathematicians Design Invisible Tunnel 171

New calculations show how to make an electromagnetic "wormhole" — a tube that is invisible from the sides but allows light to shine down the center. The practical applications are a ways off, as even the design of a spherical invisibility cloak has not advanced beyond working (in theory) for a single wavelength of visible light.
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Mathematicians Design Invisible Tunnel

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Real Programs don't use shared text. Otherwise, how can they use functions for scratch space after they are finished calling them?

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