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Rainbow

rainbow

A bow or arch exhibiting, in concentric bands, the several colours of the spectrum, and formed in the part of the hemisphere opposite to the sun by the refraction and reflection of the sun's rays in drops of falling rain.

Besides the ordinary bow, called also primary rainbow, which is formed by two refractions and one reflection, there is also another often seen exterior to it, called the secondary rainbow, concentric with the first, and separated from it by a small interval. It is formed by two refractions and two reflections, is much fainter than the primary bow, and has its colours arranged in the reverse order from those of the latter. Lunar rainbow, a fainter arch or rainbow, formed by the moon. Marine rainbow, or sea bow, a similar bow seen in the spray of waves at sea.

(Science: zoology) Rainbow trout See wrasse. Supernumerary rainbow, a smaller bow, usually of red and green colours only, sometimes seen within the primary or without the secondary rainbow, and in contact with them.

Origin: AS. Regenboga, akin to G. Regenbogen. See Rain, and Bow anything bent.


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Re:

... 'species' you will only be capable of selecting 1 or 2 different kinds of skittles, and while this is upsetting due to the overwhelming lack of a rainbow for you to taste, it has more drastic implications when you think of it as a population, cutting off the majority of genes from a gene pool ...

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by cyanodave
Thu Mar 29, 2012 11:34 pm
 
Forum: Ecology
Topic: Herbivores without predators
Replies: 19
Views: 13491

Creation of species through programmed evolution

... or the Bible! At the time these texts were written (by ordinary people!), science as we know it now was practically nonexistent (back then, a rainbow was a miracle...). You will hardly find any serious scientific contributions in texts older than ~300-400 years. So, interpreting religous texts ...

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by EnricoPallazzo
Tue Jan 24, 2012 8:21 pm
 
Forum: Evolution
Topic: Creation of species through programmed evolution
Replies: 15
Views: 8401

Re: Theories - Origin of Life

... Phenetics v Cladistics But thanks your view is now clearer. Decent with modification Or as Richard Dawkins put it in his book Unweaving the Rainbow: Science, Delusion, and the Appetite for Wonder, p. 201. What had been distinct species within one genus become, in the fullness of time, distinct ...

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by scottie
Mon Oct 31, 2011 3:02 pm
 
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 559
Views: 755952

Why does chlorophyll always fluoresce in red?

... light. Chlorophyll fluoresces red light. Why red? You may have learned that different colors of light have different energies. For example, in a rainbow, red light has the least energy, and violet has the most energy. Chlorophyll is able to absorb different colors of light, especially red and ...

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by lovie9
Wed Jul 13, 2011 8:57 am
 
Forum: Botany Discussion
Topic: Why does chlorophyll always fluoresce in red?
Replies: 6
Views: 11114

Re: two different color eyes

... different coloured hair on the one person eg. my husband has a bright red beard, blond hair and dark brown chest hair and his.. red also.. Like a rainbow, lol!! Not sure if this is connected to the different coloured eyes?? 05112008(001).jpg

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by kellybrown
Wed Jul 28, 2010 3:01 am
 
Forum: Human Biology
Topic: two different color eyes
Replies: 141
Views: 254534
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