Sunset rainbowsThe light at sunset is reddened by its passage through the thick layers of atmosphere
Sunset rainbowsThe light at sunset is reddened by its passage through the thick layers of atmosphere as it strikes our planet at a grazing angle increasing the path length of the rays, and this rainbow, snapped opposite the sun over Durban in South Africa is no exception. The blue wavelengths get scattered by the dust particles in the air, while the red pass through unimpeded, and the rainbow follows suit as the sun nears the horizon. LozImage credit: Jacques Joubert -- source link
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