Dear Admin. Fu-Kwun Hwang
I've already read your article about the rainbow, and I love it pretty much!! However, I still don't quite understand why the rainbow always looks like an arch as raindrops are everywhere, why do I only receive the refraction light spectrum from that arch not anywhere else? Besides, I've no idea how the hell this happened in these pictures as I tried to think about it but just had no idea... and in picture 721e67.jpg, the color of the cloud between the two rainbows is darker than the outside part, odes it have something to do with this phenomenon?
Thank you very much!