What causes double rainbows?

neilep · « **on:** 04/03/2007 22:41:41 »

Dearest Sir, Mams, Confused and Transgenders !

This is a double Rainbow....nice isn't it ? *le sigh*

rainbow.jpg (73.05 kB . 500x300 - viewed 4843 times)

But why do we get Double Rainbows ?..I don't know...do you ?..if you do...tell me..so that I can know too !

Thanks

Hugs & Shmishes

Neil
xxxxx

Karen W. · « **Reply #1 on:** 04/03/2007 23:08:11 »

Confused Mam here, I don't know why..it is so beautiful.. so beautiful.. Thanks Tell me why too PLease.. I saw one last week at work.. Not near as bright but still beautiful.

neilep · « **Reply #2 on:** 04/03/2007 23:11:07 »

Quote from: Karen W. on 04/03/2007 23:08:11

Confused Mam here, I don't know why..it is so beautiful.. so beautiful.. Thanks Tell me why too PLease.. I saw one last week at work.. Not near as bright but still beautiful.

I actually took this photo as the rainbow appeared to enter my garden pond !

Karen W. · « **Reply #3 on:** 04/03/2007 23:30:34 »

Hugs to you... HEE HEE HEE.. I like your garden spot tis beautiful..
Me pond is way smaller then yours, can I come soak my feet in your pond kind sir.. It's beautiful!

Karen W. · « **Reply #4 on:** 04/03/2007 23:32:16 »

Better yet me needs to give me head a good soakin..LOL

Karen W. · « **Reply #5 on:** 05/03/2007 00:55:34 »

Have you ever really seen one a double one?

Karen W. · « **Reply #6 on:** 05/03/2007 02:04:20 »

Alrighty then You have forced me to enter information into my computer to understand about double rainbows better known as a secondary rainbow! I feel better thank you!!

as we can see a second rainbow appears over the first rainbow answering the question that was not asked..LOL which rainbow came first. Answer: the bottom one. [] In the first place rainbows are caused by the refraction of light through water droplets, which is true for both. the first one is caused by the light refracting only one time through the water droplet! The second rainbow is then formed by the light being bounced around on the inside of the water droplet causing it to exit at a little different angle, thus producing the second rainbow above the first!

In this information I see that she says, she has seen three rainbows all at once also! Can you imagine how beautiful that would be?

I read and obtained this info from: "The Mad Science Library." Mad Science Network.. posted by linda Englebretson, Forcaster, Meteroligist, National weather service, WSFO CYS march 17th 98 [:X] [:X] There you go kind Sir now we both know!! LOL []

here is another interesting link! http://eo.ucar.edu/rainbows/

neilep · « **Reply #7 on:** 05/03/2007 02:50:40 »

Thank You Karen.

.and yes....I have seen many double ones and they are well nice !!

thank you for the explanation.

Karen W. · « **Reply #8 on:** 05/03/2007 03:10:37 »

Well You are welcome.. They are very nice last week was the first time I had ever seen a real double one. The one you posted months ago in the other thread was the first one I had ever seen.. It is also outstanding as well as this one!! The colors are incredible! in both images.. I have the other on for my screen saver its great!!

syhprum · « **Reply #9 on:** 05/03/2007 06:33:23 »

I have never seen a double one but once managed to get to the spot where the rainbow touched the ground but failed to find the pot of gold

ROBERT · « **Reply #10 on:** 05/03/2007 14:05:09 »

Here is a rainbow photo I took m'sel, (got soaked doing it [:I]).

Supernumerary bands are just visible.

neilep · « **Reply #11 on:** 05/03/2007 14:43:42 »

Quote from: syhprum on 05/03/2007 06:33:23

I have never seen a double one but once managed to get to the spot where the rainbow touched the ground but failed to find the pot of gold

I've made the same mistake.....chosen the wrong end !!

neilep · « **Reply #12 on:** 05/03/2007 14:44:27 »

Quote from: ROBERT on 05/03/2007 14:05:09

Here is a rainbow photo I took m'sel, (got soaked doing it [:I]).

Supernumerary bands are just visible.

Robert.....fantastic photo !

THANK YOU

Karen W. · « **Reply #13 on:** 05/03/2007 15:36:53 »

Wow you guys it is beautiful... gosssssh they really are lovely! All that red. The one we seen last week we could see the end of it all the way to the ground on one end it came down just in front of the hill by the preschool you could see the color in front of the green trees to the ground it was also the first time I saw the rainbows end!

ROBERT · « **Reply #14 on:** 07/03/2007 16:01:15 »

Quote from: Karen W. on 05/03/2007 15:36:53

Wow you guys it is beautiful... gosssssh they really are lovely! All that red.

I took this rainbow photo just as the sun was setting, hence the orange clouds.

How high a rainbow arches depends on the height of the sun above the horizon (elevation):
when the sun is near the horizon the rainbow arches highest.

Karen W. · « **Reply #15 on:** 07/03/2007 16:11:37 »

Thats interesting. Thanks Robert!

Bored chemist · « **Reply #16 on:** 07/03/2007 18:52:49 »

A couple of months ago I saw a pair of rainbows while I was on my way to work. Both the primary and secondary 'bows were orange.

Karen W. · « **Reply #17 on:** 25/05/2007 17:22:11 »

ME LUFFS RAINBOWS and Waterfalls.. LOL I think Rainbows are spectacular.. The double ones amaze me!

Monox D. I-Fly · « **Reply #18 on:** 04/05/2019 07:42:55 »

Quote from: Karen W. on 05/03/2007 02:04:20

Alrighty then You have forced me to enter information into my computer to understand about double rainbows better known as a secondary rainbow! I feel better thank you!!

as we can see a second rainbow appears over the first rainbow answering the question that was not asked..LOL which rainbow came first. Answer: the bottom one. [] In the first place rainbows are caused by the refraction of light through water droplets, which is true for both. the first one is caused by the light refracting only one time through the water droplet! The second rainbow is then formed by the light being bounced around on the inside of the water droplet causing it to exit at a little different angle, thus producing the second rainbow above the first!

In this information I see that she says, she has seen three rainbows all at once also! Can you imagine how beautiful that would be?

I read and obtained this info from: "The Mad Science Library." Mad Science Network.. posted by linda Englebretson, Forcaster, Meteroligist, National weather service, WSFO CYS march 17th 98 [:X] [:X] There you go kind Sir now we both know!! LOL []

here is another interesting link! http://eo.ucar.edu/rainbows/

So, it's like a rainbow inside of a mirror house?

edulofter · « **Reply #19 on:** 26/05/2019 02:01:16 »

On occasion, you may have seen two rainbows at once. The lower rainbow is the primary rainbow and the higher, fainter, colored arc is the secondary rainbow. The color sequence of the secondary rainbow is opposite to the primary; red is on the inside of the arc and violet on the outside.

When sunlight passes through a triangular glass prism, it separates into the colors of the rainbow. This separation happens because different colors bend, or refract, by different amounts. The shortest (blue and violet) wavelengths refract the most; red light refracts the least.

The separation of colors is referred to as dispersion. Not only prisms but also water drops and ice crystals can cause dispersion. To form a rainbow you need large drops of water, the sun at your back and at the correct angle.

Raindrops act as prisms, bending and reflecting the sunlight that falls on them, just like a crystal hung in a sunny window.

As light enters water, the path it takes changes. How much the direction changes is a function of the color of the light.
You probably noticed that a smooth water surface can act like a mirror and reflect light. If the light beam entering the raindrop reaches the back of the drop at a certain angle, it undergoes a reflection and heads back toward the sun. As the light exits the raindrop and re-enters the air, its path bends an amount that again depends on the color. This bending of the light as it enters and leaves the drop disperses the light of the sun into its spectrum of colors that form the rainbow.
Sometimes the light reflects twice off the back of the raindrop

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What causes double rainbows?

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neilep (OP)

ROBERT

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ROBERT

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