Flat surfaces at angles to horizontal {inclined plane}| can allow lifting loads over longer distances, instead of straight up, requiring less force. Inclined-plane angle is in degrees or is ratio of height above horizontal to distance along horizontal.
Inclined planes can wind around axes {screw}|. Most screws are right-handed and screw in clockwise.
Helices {corkscrew}| can screw into corks. A lever pushes down on bottle top to pull out cork.
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Date Modified: 2022.0225