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At the end of the day, he says goodbye in Manlleu (Osona) with the gift of a show, which we can relive in The Photos of the Readers of La Vanguardia. The necessary rain has not yet arrived, but this sky is spectacular.
In some images you can even see the iridescence in the clouds, which look like colored spots like those of a rainbow.
Iridescence is an optical phenomenon characterized as the property of certain surfaces in which the hue of light varies according to the angle from which the surface is viewed, such as oil stains, soap bubbles, the wings of a butterfly and the playable side of the laser disc, either CD or DVD.
Iridescence is caused by multiple reflections of light off multiple semi-transparent surfaces, where subsequent phase shifts and interference from the reflections modulate the light by amplifying or attenuating different wavelengths.
Depending on the angle from which the surface is illuminated, it will appear in different colors. Iridescence is very common in nature, we can easily see it in insects, birds and fish, and even in plants.
Iris, in Greek mythology, is the personification of the rainbow and messenger of the gods, which left a trail of luminous colors after its passage.
Next, we can admire the spectacle of the clouds in this series of photographs:
