Air pressure

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Why do Airplanes have Wings?

Why do Airplanes have Wings?

I remember my trip to Goa. The flight was scheduled for six a.m. As the aeroplane taxied on the runway it gained speed. I felt a kick in the stomach and then we were airborne. It was my first flight and I was very excited. My father who was sitting next to me, asked, “Can you tell me how the aircraft flies?” “Because of wings,” I replied promptly. But I could not tell him what the wings do to make a plane fly....

How do Humans Balance on Two Legs?

How do Humans Balance on Two Legs?

Four-year-old Rohit couldn’t understand why his parents and grand parents were so happy on seeing his 10-month-old sister, Ruchi, take a few unsteady steps towards her favorite toy. What was so unusual about her walking -after all, he could walk and run without anyone’s help, yet no one ever clapped nor hugged him, the way they were doing it for his sister. Unable to hold his curiosity any longer he decided to talk about it to his closest friend and guide – his mother....

Why do Ears Pop?

Why do Ears Pop?

Recently I went to the top of a skyscraper in a lift. After I had gone up a few stories, I felt a funny sensation in my ears. My eardrums seemed like they were growing and were about to burst. As I went a little higher, the sensation was worse. My fellow passengers in the lift told me to swallow a few times. This would help the sensation pass, they said. And, it did. This happens to a lot of people when they are flying, or skiing downhill at very high speeds, or going deep into a mine well....

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