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  2. Simple machine - Wikipedia

    en.wikipedia.org/wiki/Simple_machine

    A simple machine is a mechanical device that changes the direction or magnitude of a force. [1] In general, they can be defined as the simplest mechanisms that use mechanical advantage (also called leverage) to multiply force. [2] Usually the term refers to the six classical simple machines that were defined by Renaissance scientists: [3] [4 ...

  3. 105 Fun Facts About Science, History, Celebrities, and More - AOL

    www.aol.com/heres-103-fun-facts-actually...

    Ace trivia night with these cool and random fun facts for adults and kids. This list of interesting facts is the perfect way to learn something new about life. 105 Fun Facts About Science, History ...

  4. Machine - Wikipedia

    en.wikipedia.org/wiki/Machine

    The hand axe is the first example of a wedge, the oldest of the six classic simple machines, from which most machines are based. The second oldest simple machine was the inclined plane (ramp), [6] which has been used since prehistoric times to move heavy objects. [7] [8] The other four simple machines were invented in the ancient Near East. [9]

  5. Ancient technology - Wikipedia

    en.wikipedia.org/wiki/Ancient_technology

    The screw, the last of the simple machines to be invented, [12] first appeared in Mesopotamia during the Neo-Assyrian period (911–609) BC. [11] According to the assyriologist Stephanie Dalley , the earliest pump was the screw pump , first used by Sennacherib , King of Assyria , for the water systems at the Hanging Gardens of Babylon and ...

  6. History of mechanical engineering - Wikipedia

    en.wikipedia.org/wiki/History_of_mechanical...

    The screw, the last of the simple machines to be invented, [9] first appeared in Mesopotamia during the Neo-Assyrian period (911-609) BC. [7] The Egyptian pyramids were built using three of the six simple machines, the inclined plane, the wedge, and the lever, to create structures like the Great Pyramid of Giza. [10]

  7. Category:Simple machines - Wikipedia

    en.wikipedia.org/wiki/Category:Simple_machines

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  8. Screw mechanism - Wikipedia

    en.wikipedia.org/wiki/Screw_mechanism

    This is in contrast to some other simple machines which are "reciprocal" or "non locking" which means if the load force is great enough they will move backwards or "overhaul". Thus, the machine can be used in either direction. For example, in a lever, if the force on the load end is too large it will move backwards, doing work on the applied ...

  9. Outline of machines - Wikipedia

    en.wikipedia.org/wiki/Outline_of_machines

    The following outline is provided as an overview of and topical guide to machines: Machine – mechanical system that provides the useful application of power to achieve movement. A machine consists of a power source, or engine, and a mechanism or transmission for the controlled use of this power.