THE RAINBOW

In atmospheric physics and meteorology, the rainbow is an atmospheric optical phenomenon that produces an almost continuous spectrum of light in the sky when sunlight passes through water droplets left in suspension after a thunderstorm, or at a waterfall or a fountain.

The electromagnetic spectrum of the rainbow includes wavelengths both visible and invisible to the human eye, the latter detectable through a spectrometer.



The Greek philosopher Alexander of Aphrodisias in the II-III century describes the phenomenon that occurs when there are two rainbow arches: the area of ​​sky below the main arch, the lower one, appears brighter than the one above.

After several theories explained over time by different scholars, Newton was the first to demonstrate that white light was composed of the light of all the colors of the rainbow, which could be separated into a full spectrum of colors by a glass prism, rejecting the theory that colors were produced by a modification of white light.

He also showed that red light was refracted less than blue light, which led to the first scientific explanation of the main features of the rainbow.

Isaac Newton originally (1672) distinguished only five primary colors: red, yellow, green, blue and violet.

Only later did he introduce orange and indigo, giving seven colors in analogy with the number of notes in a musical scale.



In Irish mythology, the leprechaun's secret hiding place, a kind of goblin, is a pot full of gold, which is generally placed at the end of the rainbow, a virtually impossible place to reach.

Similarly to Irish mythology, in Sardinia, it is said that under the rainbow there is a pot of gold coins or, in any case, a treasure: and in our case the treasure that you can find at the end of the rainbow is the Diamond Experience. Hotel, full of warm and kind people who can't wait to be able to accompany you on your vacation.