Strange rainbow twin

The twin rainbow is one of nature's longest mysteries, and a new study in Switzerland has happened to reveal the mechanism behind this beautiful phenomenon.

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Rainbows appear when sunlight interacts with tiny water particles in the atmosphere. However, the complexity of the phenomenon is still a mystery to the scientific world.

Most rainbows appear alone. The rest is a double rainbow, containing two different concentric rainbows; or more rarely is rainbow triangle, quad rainbow. However, the rarest must mention the twin rainbow, ie two rainbows separated from a rainbow root.

Impressive rainbow twin - (Photo: UCSD)

So far, no one knows why the twin rainbow appeared, until the accidental discovery of Wojciech Jarosz of the Disney Research Institute in Zurich.

When studying rainbow for graphic applications, Jarosz and his colleagues were surprised to discover the secret of the twin rainbow, according to OurAmazingPlanet page.

Previous simulations suggest that spherical raindrops, while this can easily explain the appearance of a rainbow or even a double rainbow, but the twin rainbow is still a difficult mystery.

According to expert Jarosz, in fact, rain drops fall when falling to the ground in the face of air resistance. This situation became even more apparent in the heavy raindrops, making them appear like hamburger shapes, and experts named them "burgeroid".

The team said that twin rainbow species appear when there is a combination of raindrops of different sizes, such as when two showers occur at the same time.