Sunglasses
The Visible Light Spectrum and Aviator Sunglasses
Electromagnetic waves are similar to ocean waves. We use them every day, and without them, the world we know would not exist. They range from Gamma rays to X-Rays to Ultraviolet rays to Visible Li...
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Why Do We Need Sunglasses? As a pilot it is easy for me to understand, but everyone who is outdoors under any conditions shoud wear a good pair of sunglasses to protect their eyes.
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