INCLINED PLANE, WHEEL AND AXLE, PULLEY, ROPE, GROOVE, PARTS OF THE PULLEY, ROPE, AXLE, WHEEL, PARTS OF THE LEVER, PIVOT POINT, LOAD, EFFORT, ARCHIMEDES' SCREW (It is a giant screw for pumping water from a river to irrigate the nearby land), PEDAL BICYCLE (Invented by Kirkpatrick Macmillan), WINDSCREEN WIPER (Invented by Mary Anderson), PERSONAL COMPUTER (Invented by Steve Wozniak), WHO INVENTED THE FIRST POWERED AIRPLANE?, The Wright Brothers

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