Tag Archives: sky

Optical phenomena

Envir­on­mental Graffiti has a great post about optical (light) phe­nomena; I’ve picked out a couple of my favour­ites: Crepus­cular Rays Crepus­cular rays are caused by the scat­tering of beams of light; beams created by an object such as a tree or a cloud. … Continue reading

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