How Do Airplanes Fly?
How Airplanes Are Made: https://www.youtube.com/watch?v=7rMgpExA4kM Thanks to Airbus for supporting this video http://www.a350xwb.com MinutePhysics is on Google+ - http://bit.ly/qzEwc6 And...
==========
Airplanes stay in the air because of one simple fact: there is no net force on them. And withno net force, an object at rest stays at rest, and an object in motion stays that way – evenif it’s in midair 10 km above the earth’s surface.Now of course it’s not like there aren’t forces acting on the airplane; gravity pullsdown on the plane itself plus all of the people and baggage inside, and every single air moleculethat is shot through the engine or collides with the fuselage or wings pushes on the planeas well. But if all of these forces are balanced – in particular, if the air molecules pushthe plane UP enough to counteract gravity – then the plane stays up.Getting air molecules to push the plane up is the crucial part of flying, and planesdo this by making...
==========
Airplanes stay in the air because of one simple fact: there is no net force on them. And withno net force, an object at rest stays at rest, and an object in motion stays that way – evenif it’s in midair 10 km above the earth’s surface.Now of course it’s not like there aren’t forces acting on the airplane; gravity pullsdown on the plane itself plus all of the people and baggage inside, and every single air moleculethat is shot through the engine or collides with the fuselage or wings pushes on the planeas well. But if all of these forces are balanced – in particular, if the air molecules pushthe plane UP enough to counteract gravity – then the plane stays up.Getting air molecules to push the plane up is the crucial part of flying, and planesdo this by making...
