Night is vanishing.
Light pollution has become worldwide. By Dr. Nitish Priyadarshi Glittering stars some 20 km outside Ranchi. Light pollution with fog in Ranchi city. Scattering of light on the sky of Ranchi city. Over-Illuminated tree. Other example of light pollution. For most human history, the phrase “light pollution” would have made no sense. Imagine walking on Ranchi ( Jharkhand , India ) street on a dark night some 50 years back when it was thin population. People carrying torches and lanterns in the Ranchi Street were common. Even the rickshaw pullers use to attach small lantern in front or back of rickshaws. Cycles were fit with dynamos. Only few houses were lit by gas during power cut and there were few public gaslights in the street. T he natural night sky light comes from starlight, zodiacal light (sunlight scattering from dust ...
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