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  1. #1
    Güven's Avatar
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    The Fire Rainbow

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    If you are very lucky you may see a fire rainbow once or twice in your life. It sounds like it could be one of a series of children's books - "Harry Potter and the Fire Rainbow" has a certain ring to it, but this phenomenon is not fiction. If you are in the right place and at the right time then a fire rainbow is something that you will remember witnessing forever.



    To name it properly, a fire rainbow is a circumhorizontal arc. It is also known as a circumhorizon arc but whichever you chose, scientists (and aficionados) call it a CHA. It is given its name because it looks as if a rainbow has spontaneously combusted as it made its way across the sky. It could even be suspected, perhaps, that some malign fairy or goblin has blown the rainbow up to stop some errant human discovering that elusive pot of gold at its end!



    The real explanation behind a fire rainbow lies more in science text books than in a Brothers Grimm tale. A CHA is a kind of halo - which is an optical phenomenon. These appear around the moon - or in this case the Sun. You have probably seen a halo yourself around a strong light source - take a look at street lights in the fog for example.



    Although there are many different types of optical halos, a CHA is caused by the refraction though ice crystals in cirrus clouds of light from the sun. Refraction happens when the speed of light is reduced inside a particular medium. This particular refraction happens when light goes from air without cloud to air containing cloud. In this case it is vital that the cloud is cirrus in shape.



    A cirrus cloud is one of those thin, wispy ones, often with tufts sticking out like disheveled hair! They can be huge - covering so much of the sky that you cannot see where one ends and another begins. When they are a massive sheet they are called cirrostratus. They are formed at enormous heights - over eight thousand meters. There is very little moisture at those



    So, what happens when light hits a cirrus cloud and what special conditions are needed to form a fire rainbow? The refraction of the light causes it to separate from its "white" form to its different components (which people call wavelengths). The person on the street would say that the light is bent out of shape and split up in to all the different colors that make it up. In other words, a rainbow - or in our case, a fire rainbow!



    So, why don't we see fire rainbows as often as (its now more mundane!) cousin, the rainbow? For a start the sun has to be at least fifty eight degrees above the horizon for one to occur - and you have to be lucky enough to have cirrus clouds around at the same time! Because of the necessary height of the sun you will not see a fire rainbow north of fifty five degrees - and likewise further south of the magic fifty five degrees. You may occasionally see one if you are high up on a mountain further south or north, but it is not likely!



    There is more! The ice crystals in the cirrus cloud have to be horizontal to refract the sun. If they are then the arc is formed. Ice crystals have six sides, meaning that they are hexagonal. The light goes in through one of the side faces of the crystal. Then it is refracted and it leaves through the bottom horizontal face.


    It is vital that the crystal is aligned just so as otherwise the light will not separate in to the rainbow like colors we expect. If the alignment is correct then the whole cirrus cloud will "explode" in to a flaming, fire rainbow! The sight is almost as if someone has sprayed the sky with gasoline, thrown a lit match at it and then leant back, arms folded, to take in their handiwork!




    1
    The Fire Rainbow


    And as for the one who fears standing in front of His Lord and restrains the soul from impure evil desires and lusts, verily, Paradise will be his abode [79:40-41]

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  3. #2
    afzalaung's Avatar
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    Re: The Fire Rainbow

    subhalnalla..they are amazing..
    if i see those pictures w/o the write up...i'ill definitely think its photoshop.
    The Fire Rainbow

    يا الله مدد

  4. #3
    truemuslim's Avatar
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    Re: The Fire Rainbow

    ^ anything culd be done on photoshop, incluiding this, but so wat, its all pretty anyway

    mashallah i've seen the second one like fitty times nd still amazes me!
    i would love to burn in that

  5. #4
    Güven's Avatar
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    Re: The Fire Rainbow

    Naah this isnt photoshopped , these are real and they exist.....
    The Fire Rainbow


    And as for the one who fears standing in front of His Lord and restrains the soul from impure evil desires and lusts, verily, Paradise will be his abode [79:40-41]

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    Nájlá's Avatar
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    Re: The Fire Rainbow

    wow there amazing...
    The Fire Rainbow

    Three simple rules in life:

    1) If you do not go after what you want, you will never have it
    2) If you don't ask, the answer will always be no.
    3) If you do not step forward, you'll always be in the same place

  8. #6
    Re.TiReD's Avatar
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    Re: The Fire Rainbow

    Hmm. Pretty
    The Fire Rainbow








    s a b r

  9. #7
    Danah's Avatar
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    Re: The Fire Rainbow

    Subhan allah

    I liked the last pic.....so amazing
    The Fire Rainbow

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  10. #8
    Khayal's Avatar
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    Re: The Fire Rainbow



    SubhanAllaah! jazaakAllaah khayr brother for sharing.

    The Fire Rainbow


    Even a Smile is charity!





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  11. #9
    Ali_Cena's Avatar
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    Re: The Fire Rainbow

    subhanallah brother guven you really are a nature boy

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    Güven's Avatar
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    Re: The Fire Rainbow

    Quote Originally Posted by Ali_Cena View Post
    subhanallah brother guven you really are a nature boy
    Now what has that to do with the article?
    The Fire Rainbow


    And as for the one who fears standing in front of His Lord and restrains the soul from impure evil desires and lusts, verily, Paradise will be his abode [79:40-41]

  14. #11
    Ali_Cena's Avatar
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    Re: The Fire Rainbow

    lol well a lot

  15. #12
    Science101's Avatar
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    Re: The Fire Rainbow

    We do not have fire rainbows here so I did not know about them. Fascinating!

    I love how it shows one of the interesting property of crystals. In this one polar forces align water molecules (sort of how magnets only stick together one way) in a regular order to make six sided prisms in the sky that sort out the photons of different "color" so we can see what color is.

  16. #13
    Olive's Avatar
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    Re: The Fire Rainbow



    Wow, never seen anything like that before!

    Cool pics!


  17. #14
    Periwinkle18's Avatar
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    Re: The Fire Rainbow

    wow
    The Fire Rainbow

    Allah made everyone different thats what makes them special,so no matter what ppl say just remember you're SPECIAL!!
    "You are with the one you love"
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    Re: The Fire Rainbow

    MashAllah!!

    I have never seen anything like that before. It's amazing...inshAllah I will see one, one day!!

    Thanks for sharing!!

    Jazak Allah Khair
    The Fire Rainbow

    ~Proud to be a Muslimah~


    ~Love for others what you love for yourself!~

  20. #16
    All4Allaah08's Avatar
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    Re: The Fire Rainbow

    Those are beautiful, SubhanAllah

  21. #17
    smile's Avatar
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    Re: The Fire Rainbow

    pretty!
    The Fire Rainbow

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    GO BAFANA BAFANA!;D

  22. #18
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    Re: The Fire Rainbow

    Omg...It's so pretty!

  23. #19
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    Re: The Fire Rainbow

    ive never seen rainbows like that. so cool!


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