[lit-ideas] Once in a blue moon

  • From: Omar Kusturica <omarkusto@xxxxxxxxx>
  • To: lit-ideas@xxxxxxxxxxxxx
  • Date: Thu, 16 Apr 2015 17:46:12 +0200

Vaguely interesting.


Very occasionally, the moon actually does appear to be blue. This sometimes
occurs after a volcanic eruption, like that of Krakatao in 1883. Dust
particles in the atmosphere are normally of a size to diffract blue light,
making the moon appear reddish at sunset. Larger volcanic dust particles
diffract red light, making the moon appear bluish.

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