Change:  point speed up. •Similarly, if the amount of lift drops below the weight of the airplane, the plane will descend. By increasing the lift, the pilot can make the airplane climb. Drag •Drag is an aerodynamic force that resists the motion   View changes from previous version. (Word count: 1766)

Change: The way lift is created •A. Air approaching the top surface of the wing is compressed into the air above it as it moves upward. Then, as   View changes from previous version. (Word count: 1768)

Change: Lift is a force on a wing (or any other solid object) immersed in a moving fluid, and it acts perpendicular to the flow of   View changes from previous version. (Word count: 1763)

Change: •In the late 1600s, Isaac Newton theorized that air molecules behave like individual particles, and that the air hitting the bottom surface of a wing   View changes from previous version. (Word count: 1465)

Change: The Longer Path explanation is correct in more than one way. First, the air on the top surface of the wing actually does move faster   View changes from previous version. (Word count: 1049)

Change: •If you read any college-level aerodynamics textbook, you will find plenty of mathematical methods for calculating lift. Unfortunately, none of these explanations are particularly satisfying unless you have a Ph.D. in mathematics. There are many simplified explanations of lift that appear on the Internet and in some   View changes from previous version. (Word count: 673)

Change: (as you may have already guessed) is to reduce drag. Just like the downhill skier, the pilot wants to make the aircraft as small as possible to reduce   View changes from previous version. (Word count: 347)

Change:  window while moving, you will experience a very simple demonstration of this effect. The amount of drag that your hand creates depends on a few   View changes from previous version. (Word count: 352)

Change: Created by venkatarun Oct 19 2006, 10:23 AM EDT for: no reason given