A Moment of Science

Posts tagged light scattering

January 26, 2012

 

blue sky with clouds

Why The Sky Is Not Blue

This is partly due to pollution, but even in the cleanest air the sky is lighter near the horizon due to the effect of earth's atmosphere on sunlight.

January 19, 2012

 

clouds in the sky

Why Are Clouds White?

Clouds can range in color from brilliant white to almost black. Why?

February 25, 2010

 

hidl_040

Why Are Some Headlights Blue? High Intensity Discharge Lamps

Have you seen cars with headlights that appear blue?

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