I saw a strange rainbow, at the wrong height compared with a听normal one. It is supposedly impossible to see a rainbow at any听other angle than around 42听degrees, but the arc of my 鈥渓ow听bow鈥� looked like 21 degrees. Can anyone explain? (continued)
Ed: The previous letters about this 鈥渓ow bow鈥� (31 July) concluded that it must have appeared when the sun was high in the sky. However, Guy Cox, who spotted the low rainbow (pictured), has clarified that it occurred in the late afternoon, when the sun was close to the horizon. He has photographed a 鈥渘ormal鈥� rainbow at a similar time and season, so the sun鈥檚 elevation can鈥檛 account for the effect. The mystery continues. Any ideas?
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