How Does the Radio Antenna Work?
How Does the Radio Antenna Work? The radio antenna on a car or on your home set is like an ear, listening for radio waves sent out by broadcasting stations. The radio...
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How Come Everyone Has a Unique Voice?
How Come Everyone Has a Unique Voice? Your voice identifies you as uniquely as your looks do. Although some people might sound quite a bit alike, no two voices are ever...
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How Do Hearing Aids Work?
How Do Hearing Aids Work? Hearing aids change sounds into electrical signals that could then be amplified and converted back into sounds that could be transmitted into...
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Can Snakes Hear?
Can Snakes Hear? Snakes have no ears on the outside of their heads. This means they do not hear sounds as you do. So shouting and loud noises do not perturb them. But...
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Are Bats Really Blind?
Are Bats Really Blind? No, bats are not blind. In fact, some can see very well. Bats do, however, come out mostly at night. They are not equipped with special eyesight...
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