TaNuj^'s Weblog

Posted on: August 19, 2008

Red sunsets

Sunlight (what we call “white light”) is made up of all different colors of light, each having a different wavelength. During a sunset, more red light is scattered toward you because of aerosols in the lower atmosphere, compared to the amount of blue or green light. Since, at sunset, sunlight is passing through a much longer path of the lower atmosphere than when the sun is overhead, the effect of the aerosols becomes much stronger. So, you end up seeing more red light that any of the other colors of light, and the sky appears red.

 

Rainbows

Rainbows are optical illusions that cause a spectrum of light to appear in the sky when the Sun shines onto droplets of moisture in the Earth’s atmosphere.Rainbows can be caused by other forms of water than rain, including mist, spray, dew, fog, and ice. Moreover, rainbows can have shapes other than a bow (arc), including stripes, circles, or even flames.The light is first refracted as it enters the surface of the raindrop, reflected off the back of the drop, and again refracted as it leaves the drop.

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1 Response to ""

[…] public links >> atmosphere Operation Roots? Saved by mrspleen on Sun 19-10-2008 Sunlight (what we call “white light”) is made up of all Saved by fmedrano on Sat 18-10-2008 How does “Physical” compare to the YMCA GYM in TST Saved by […]

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