WHY DOES AEROPLANES HAVE BIRDS LIKE WINGS ?
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The plane's engines are like a bird flapping its wings: it helps them to glide through the air. The smaller details are different: like how the plane has to leave its engines on all the time because it is so much heavier than a bird and can't just glide on the wind.
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Birds have streamlined shapes so that when they are in flight the air can flow on their surface smoothly. Engineers used the shape of the birds as inspiration to model the planes (4). Most airplanes have a streamlined shape so that they do not face air resistance when they are in motion
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