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 5,000planes are in the skies above the United States and in one year controllers handle an average of 64 million takeoffs and landings!

An aircraft landing or take off happens every 45 seconds in Heathrow Airport alone and there could be around 50,000 flights daily carrying nearly a million passengers every day. How do these Aircrafts fly with highest level of safety? 

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


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