Science
Why Hawaii has the best rainbows, ancient carpet still dazzles thanks to fermented wool – Physics World – physicsworld.com
Excerpts from the Red Folder

Rainbow capital: a spectacular show over Honolulu. (Courtesy: Minghue Chen)
For several years, Physics World headquarters had large windows with a northern exposure, and that coupled with showery weather in Bristol meant that we often saw spectacular rainbows. It turns out, however, that Hawaii not Bristol is the best place in the world to view rainbows at least according to Steven Businger of (you guessed it) the University of Hawaii.
Indeed, rainbows are so plentiful in the US state that the Hawaiian…
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