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A Bright Idea: Solar Smart Windows

Smart windows get darker to filter out the sun’s rays on bright days, and turn clear on cloudy days to let more light in.

Smart windows get darker to filter out the sun’s rays on bright days, and turn clear on cloudy days to let more light in. This feature can help control indoor temperatures and offers some privacy without resorting to mini-blinds. Now scientists report a new development in this growing niche: solar smart windows that can turn opaque on demand and even power other devices.

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