Simple+Machines

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__**Pulley **__ media type="youtube" key="9T7tGosXM58" width="420" height="315" __**Lever **__ media type="youtube" key="OuPyvTQBwfQ" width="420" height="315" media type="youtube" key="v1hjiOp6FEU?list=PL101741086C893408" width="560" height="315" media type="youtube" key="suDJARX0nMA" width="420" height="315"
 * __Screw, Wheel and Axle, Friction __**
 * __ Inclined Plane __**