An inclined plane is a surface with a slope. A ramp is an example, as are chutes, hoppers, and funnels. Since cutting blades have sloped surfaces, they are also inclined planes, and so knives, drills, chisels, and plows are examples. The twist of a screw is an inclined plane, including the Archimedes screw used for pumping water, as is the blade of the rotor of a windmill. All of these were in use in the Middle Ages. There are types of inclined planes, such as the airfoil, that were not in use then.
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Well, honey, inclined planes in the house are everywhere! Think of your ramps, stairs, even your dang driveway - all inclined planes helping you move things around easier. So next time you're struggling to lug that heavy furniture up the stairs, just remember to thank good ol' inclined planes for making your life a little less miserable.
uphill grade
Yes because it's a twisted incline plane.
an inclined plane! atleast that's what I think
Obviously some kind of PRISM.