The LA Times recently printed this spectacular photo of a moonbow over Yosemite falls at night, (courtesy of Dr Karl and Radio 5's 'Up all Night' programme). A moonbow is a rainbow at night. Light from the full moon, shining upon water vapour in the air, can produce a rainbow via the same mechanism by which light from the Sun produces a daytime rainbow. The full Moon is required to produce sufficient light to excite the colour receptors in the eye.
Sunday, June 3, 2007
Moonbows
The LA Times recently printed this spectacular photo of a moonbow over Yosemite falls at night, (courtesy of Dr Karl and Radio 5's 'Up all Night' programme). A moonbow is a rainbow at night. Light from the full moon, shining upon water vapour in the air, can produce a rainbow via the same mechanism by which light from the Sun produces a daytime rainbow. The full Moon is required to produce sufficient light to excite the colour receptors in the eye.
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