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I captured this series of photographs for La Vanguardia's Readers' Photos of the rainbow and sunset from Manresa, in Bages, after a small storm.
In the images you can see not only the prominence of this multicolored arch but how the clouds also assert themselves at sunset in a sky that changes tone as night approaches.
A rainbow is an optical and meteorological phenomenon that consists of the appearance in the sky of one arc (or, in this case, two) of multicolored light.
It is caused by the decomposition of sunlight into the visible spectrum, which occurs by refraction, when the sun's rays pass through small droplets of water contained in the Earth's atmosphere.
Although the rainbow is a continuous gradient of spectral colors, it is considered that these can be defined in seven fundamental colors: red, orange, yellow, green, cyan, blue and violet, which are equivalent to those mentioned by the scientist Isaac Newton in 1704. .
