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Rube Goldberg was born in San Francisco California on July 4 1883. He died on December 7 1970. Rube Goldberg was most well know for his cartoons but he also was a sculptor, engineer, and an inventor.

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Is a simple device that uses no moving parts. Ex: lever, pulley, inclined plane, wedge, screw, and a wheel and axle. A simple can be anything that is used to make a job easer that does not have any moving parts.

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A rube Goldberg contraption is a compound machine. A compound machine is two or more simple machines put together. Contraption is anything that is made to make a job easier.

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Pencil sharpener

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http://www.youtube.com/watch?v=OAQ_c1C1JfQ