October 7, 2011 by staff
Quadruple Rainbow, In the past, scientists have believed that the probability of seeing a third level (triple) rainbow is as likely as finding a gold mine at the end of a rainbow one, however, after a deductive reasoning, scientists now say the possibility of three rainbow, and to a quaternary (quad), rainbow, is a reality.
A press release of the Optical Society said: “These rare legendary optics, caused by three reflections of each ray of light inside a raindrop finally been confirmed, thanks to the perseverance of photography and a new weather model that provides scientific basis to find them. ”
These rainbows are so rare that only five have been documented in the last 250 years.
The triple and quadruple rainbows seen when the light that initially passes through the drop of water to create the first rainbow, recovers and goes through three or four more times, so the creation of the additional rainbow.
Part of the reason for the tertiary and quaternary rainbows are not often seen because when the third and fourth bands are created, are in the glare of the sun, making it difficult for any hunter or rainbow the viewer to see the site.
The search for proof of the existence of the third most common rainbow was the work of Raymond Lee, professor of meteorology at the U.S. Naval Academy.
Lee and his colleague Philip Laven, came up with a mathematical equation, using the common factors in each sighting documented tertiary rainbow, to help determine if these third and fourth rainbow can be seen.
The BBC reported that there were two German photographers who captured the photographic documentation of the rainbow, on two occasions, after rainstorms in Germany last May and June.
Michael Grossman got his picture in a village in southwestern Germany called Kaempfelbach. And Michael Theusner took his picture, which also included the rainbow Quaternary in the northern German city of Bremerhaven.
Both photos are needed further treatment in order to see the phenomenon.
The BBC wrote: “Because the effect is so weak, a number of shots had to be taken, with an average after the event, along with a digital enhancement known as unsharp mask, to show evidence of tertiary rainbow “.
It’s exciting that the images were captured on film, but unfortunately, this means that the site of a rainbow third and fourth would be very difficult to see to the nkd human eye.
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