From My Nest To Yours

"Once in a blue moon"

I, as many have often said that phrase. The last blue moon was in May 2007. There have been poems written and scientist have studied this phenomenon. Molecules of air are much smaller than the wave length of visible light. Blue light has a shorter wave length than red. Blue light scatters more than red. The effect Rayleigh scattering. This is responsible for what is called Tyndall blue. Another one of the fascinating wonders of our planet.

~And there shall be signs and wonders in the sky~