Simple Machines
March 29, 2011
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If the wheels are on a single axle they are hare to turn but are easy
to turn if they are on separate axles.
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Wheels can be uses as rollers.
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Gears can make motion faster.
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Gears can be used to change direction of motion at right angles.
This like tongs work.
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Levers can be operated by pneumatics.
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Pneumatics can be used for lifting
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or pressing. Pulleys can be crossed to make motion in opposite
directions.
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Pulleys can be used to winch up a boat
or construction materials.
It was very nice to visit Mrs. Robert's room.