How Airplanes Fly?

We as humans were always curious to know how the birds could fly, wondering if we too could fly. We could build machines that can fly through the air after carefully studying birds. At any given moment, roughly 5,000 planes are in the skies above the United States and in one year controllers handle an average of 64 million takeoffs and landings!

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http://www.wonderwhizkids.com/index.php/aircrafts