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In Las Fotos de los Lectores de La Vanguardia we can contemplate the spectacular sunrise this Monday on Gavà beach with the sun in the shape of a light bulb captured by the photographer.
From the Baix Llobregat coastline, it has been possible to see the effect of the deformed sun, which can take on various forms and, in this case, looks like a light bulb (and illuminating us).
The sun's rays are deflected as they pass through the Earth's atmosphere. This is an optical phenomenon known as "refraction" and the angle that light is bent after passing through the Earth's atmosphere is known as the "angle of refraction".
Refraction is the change in direction and speed that a wave experiences when passing from one medium to another with a different refractive index.
It is also very well observed with respect to the sun when, for example, the so-called Omega effect occurs.
This spectacular phenomenon is formed when the air, in contact with the surface, very dense and at the same time warmer, produces the refraction of light, which deforms the sun and creates the mirror effect, which then takes the shape of an Etruscan vase, like said the writer Jules Verne.
