Someday you'll keep a rainbow in a cage [Physics]

Scientists have been able to use metal to do tricks with light. Now they can differentiate that light into a spectrum, and store each color in separate little grooves on the metal. With the power of plasmonics, you may one day have a rainbow on your keychain. More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/l-5bDg0Z6MA/someday-youll-keep-a-rainbow-in-a-cage

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