Quantum Dots May Lead to Rainbow Solar Cell

Quantum Dots May Lead to Rainbow Solar Cell from PhysOrg.com

For the first time, researchers have created solar cells made of different-sized quantum dots, each tuned to a specific wavelength of light. By arranging these quantum dots in an ordered pattern, the scientists hope that they can one day fabricate “rainbow” solar cells, which can efficiently harvest a large part of the useful spectrum of sunlight.

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Daylight Savings Time an Energy Waster

Well, the folks at Congress had their heart in the right place by moving and extending Daylight Savings Time earlier into the spring - but it appears from a recent study that DST actually has a net NEGATIVE effective on energy usage. The culprit - air conditioning.