Drag
What is it?
Drag is the opposite of thrust. Drag must be overcome in order for an aircraft (or anything else, for that matter) to move forward through a gas or liquid. Other terms for drag are wind resistance and friction.
Drag, when using a computer, is when you hold down the mouse button while moving an object or icon.
Give me an example!
Have you ever noticed that you can go faster down a steep hill on your bike if you hunch down closer to the handlebars? That's because you're lowering your wind resistance, or drag. Modern aircraft and automobiles are designed to overcome drag by being aerodynamic in shape. The less friction air encounters when moving over the outer surface of an object, the faster the object can move with the same amount of thrust.
Give me an example!
Have you ever noticed that you can go faster down a steep hill on your bike if you hunch down closer to the handlebars? That's because you're lowering your wind resistance, or drag. Modern aircraft and automobiles are designed to overcome drag by being aerodynamic in shape. The less friction air encounters when moving over the outer surface of an object, the faster the object can move with the same amount of thrust.
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