wyrm
Joined 12 years ago
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Joined 12 years ago
Now, where did you find it, so I can look there next time?
In a hydrodynamic sense, "lift" is a force on a foil moving through a fluid. This kind of lift is a force orthogonal to the direction of motion through the fluid and the surface of the foil. That could be upward lift, like that on the wings of an aircraft. That could also be the forward and leeward lift on the sail of a sailboat, or the windward lift on the sailboat's keel. It could also be the lateral, stabilizing lift on the control surfaces of a rocket.