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the lever is a simple machine that serves to lift heavy objects

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Machine that incorporate the use of resistance with cables.

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Mixed of fixed and movable pulley systems.

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Two or more wheels in contact, the primary wheel drives.

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Are used to increase or decrease the speed of rotation

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Gear Mechanisms with a chain-Mecanismes d'engranatges amb cadena

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Gear Mechanisms with a chain-Mecanismes d'engranatges amb cadena

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The ratio between the rotation velocities depends on the number of theet.

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Gear mechanisms and cogwheels-Mecanismes d'engranatge i rodes dentades

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Gear mechanisms and cogwheels-Mecanismes d'engranatge i rodes dentades

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cogwhells are sets of whells that have cogs

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This mechanism is reversible: it can also transform linear motion from the rack into rotary in the pinion

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gears serve to make mechans and make an object rotate

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anchor lifting mechanism in a ship

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Cam and Eccentric Wheel-Lleva i roda excèntrica

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Cam and Eccentric Wheel-Lleva i roda excèntrica

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Cams and eccentric wheels are mechanisms that transform the rotary motion of an axle into altemate rectilinear motion.

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Crank and Connecting Rod-Manivela i biela

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Crank and Connecting Rod-Manivela i biela

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as the wheel rotates, the crank transmits the rotary motion to the connecting rod.

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When a shaft has two or more cranks it can be called a crank shaft.