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This Tuesday morning a spectacular Etruscan vase could be seen above the Mediterranean Sea from Gavà beach, in the Baix Llobregat.
A mirage is when the magical moment arrives when the sun separates in two, as can be seen in these photographs from Las Fotos de los Lectores de La Vanguardia.
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.
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 It was described by the writer Jules Verne.
