Over the past 15 years, cities at night around the world have undergone a transformation: instead of being bathed in warm, orange sodium vapor light, they're now lit up by brighter, white LED lights.
Over the past 15 years, cities at night around the world have undergone a transformation: instead of being bathed in warm, orange sodium vapor light, they're now lit up by brighter, white LED lights.
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Over the past 15 years, cities at night around the world have undergone a transformation: instead of being bathed in warm, orange sodium vapor light, they're now lit up by brighter, white LED lights.
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