"The Physics's Concept That Wow Me the Most"

    When i was five, i played games with my friends at the backyard of my house. Then, i saw  a big white cylindrical-look object flying above me, making a very loud sound. I was amazed by seeing the flying object and quickly run into the house to get my dad. I asked him what was the flying object, he said "that is the aeroplane...it carries people through the air from one place to another". Me, as a five years old kid, I get more curious and asked him "how did the aeroplane fly in the air?". He said the pressure at the wings of the aeroplane makes it fly. Unfortunately, i was too small to understand the concept of pressure itself.

    Now,as a physics student, i finally understand what was meant by my dad. The aeroplane wings are shaped to make air move faster over the top of the wing. When air moves faster, the pressure of the air decreases. So the pressure on the top of the wing is less than the pressure on the bottom of the wing. The difference in pressure creates a force on the wing that lifts the wing up into the air.

   The same concept is applied when the birds fly. But, in this case, the birds use their strong breast muscles to flap their wings and give them the thrust to move through the air and fly.In a way, birds use a swimming motion to get the lift needed to fly. Aeroplane wings have a similar shape as bird wings, but instead of flapping their wings, we use engines to thrust them into the air and create the lift needed to fly.

    Thus, there is no doubt that the physics concept applied on the aeroplane had "wow"ed  me the most. I will never ever forget the incident where i first found the aeroplane flying obove me and how my dad tried to explain to me on how the aerplane fly.