Mr. Fu-Kwun Hwang,

  You are such a genius. My question is, [color=purple]how does double rainbow forms[/color]? I was once see a double rainbow when I am lying on the floor while fixing my [url=]jeep engine parts[/url] saturday morning. And I was amazed because usual rainbows are single. How do we know about it? My friends are also amazed with it. Thanks in advance.

  I have here an image of double rainbow:

-Ms. Gon.