OPTICS

Optics is the study of the properties and behavior of light. In this section you can learn about everything from holograms to lasers and lenses.
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Invisibility Cloak For Real This Time?

We first reported on the possibility of an invisibility cloak last year. Now a different invisibility cloak is making the news -- one that uses metamaterials to redirect light away from the wearer.

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  • White

    White

    White, the color of a substance that reflects all the colors of sunlight. It can also be produced by a mixture, in equal proportions, of the optical primaries because these colors (violet-blue, green, and orange-red) can be combined to produce all other colors. See more »

  • Yellow

    Yellow

    Yellow, one of the pigment primary colors. Yellow occurs between green and orange in the solar spectrum. See more »

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