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Lens Colors Affect How Much Visible Light Reaches Your Eyes, How Well You See Other Colors And How Well You See Contrasts.   How To Choose: 1.Think about when you...

Everyone knows that sunglasses can make it easier for people to see on sunny days, whether on the road or in the water. However, according to the American Society of...

We all hear sounds through both our bones (bone-conducted or bone-transmitted) and our eardrums (air-conducted or air-transmitted). Most sounds are heard by our eardrums. The eardrum converts the sound waves...