I saw one of these yesterday and oh my,twas a sight to behold.
2006-09-24 22:34:03 · 11 answers · asked by greenfingers 2 in Science & Mathematics ➔ Weather
the first time i saw a double rainbow was last june..
a second, dimmer secondary rainbow is seen outside the primary bow. Secondary rainbows are caused by a double reflection of sunlight inside the raindrops, and appear at an angle of 50°–53°. As a result of the second reflection, the colours of a secondary rainbow are inverted compared to the primary bow, with blue on the outside and red on the inside. The dark area of unlit sky lying between the primary and secondary bows is called Alexander's band, after Alexander of Aphrodisias who first described it.
2006-09-24 22:38:01 · answer #1 · answered by merkkrem101us 3 · 1⤊ 0⤋
You always get a double rainbow - in fact you always get a triple rainbow. It is just that usually the other two are not bright enough to see. They are a product of the refraction angles in the water droplets, but the first is the brightest, the second not as bright and the third is the dimmest - so we usually only see one. The second and third rainbows will appear below and above the primary one and their colours will be in the opposite order for each edge. The second forms underneath (away from the sun) and the third one forms on top (towards the sun - which is why it isn't visible).
2006-09-24 23:31:05 · answer #2 · answered by Cratur 1 · 0⤊ 0⤋
The same thing that causes a rainbow - light refracting off water droplets.
If the droplets are the correct size the light rays will not only refract they will also reflect inside the droplet.
This causes the double rainbow effect
2006-09-24 22:35:17 · answer #3 · answered by Anonymous · 0⤊ 0⤋
You have to think about it in little diffrent manner: See normally everyone know how a rain bow is formed. So how the 2 rain bows are formed : We look at the rain bow from a certain location. The two rainbows are formed in diffrent locations. (Say you watching a same movie on a two different screens). hope this might help you understand the cause.
2006-09-24 23:21:54 · answer #4 · answered by uday g 1 · 0⤊ 0⤋
refraction of light, inside the rain droplets will cause a double rainbow, not that rare, one of natures wonders though.LF
2006-09-24 22:45:53 · answer #5 · answered by lefang 5 · 0⤊ 0⤋
It is caused by sun rays that reflect twice inside the rain drops.
2006-09-25 14:10:46 · answer #6 · answered by Anonymous · 0⤊ 0⤋
properly its the mirrored image of sunshine by the water droplets so if theres 2 factors of rain getting in distinctive instructions then there could be as many rain bows seen with the aid of fact the attitude your at transformations.
2016-10-17 22:34:15 · answer #7 · answered by ? 4 · 0⤊ 0⤋
if theres a big enough area of storm or two or more storms close by
2006-09-24 22:50:55 · answer #8 · answered by dennis s 3 · 0⤊ 0⤋
too much alchol and you see double of pretty much everything
2006-09-24 22:35:20 · answer #9 · answered by Anonymous · 1⤊ 1⤋
It will appears once in a while...
2006-09-24 22:36:45 · answer #10 · answered by shashi_s14 3 · 0⤊ 1⤋