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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 ...
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]
Essentially, conquest itself was a legal act of extinguishing the legal rights of other states without their consent. Under this framework, it is notable that conquest and subsequent occupation outside of war were illegal. [5] In the post-World War II era, not all wars involving territorial acquisitions ended in a peace treaty.
Conquest is the act of military subjugation of an enemy by force of arms. [ 1 ] [ 2 ] Military history provides many examples of conquest: the Roman conquest of Britain , the Mauryan conquest of Afghanistan and of vast areas of the Indian subcontinent , the Spanish conquest of the Aztec Empire and various Muslim conquests , to mention just a few.
العربية; Aragonés; Azərbaycanca; বাংলা; Беларуская (тарашкевіца) Català; Čeština; Cymraeg; Dansk; Deutsch; Español; Esperanto
Siege engine in Assyrian relief of attack on an enemy town during the reign of Tiglath-Pileser III 743-720 BC from his palace at Kalhu (Nimrud). The earliest siege engines appear to be simple movable roofed towers used for cover to advance to the defenders' walls in conjunction with scaling ladders, depicted during the Middle Kingdom of Egypt. [2]
Screw linkages in machines are exceptions; they can be right- or left-handed depending on which is more applicable. Left-handed screw threads are also used in some other applications: Where the rotation of a shaft would cause a conventional right-handed nut to loosen rather than to tighten due to fretting induced precession. Examples include:
Conquest, one of the Four Horsemen of the Apocalypse in some interpretations of the book of Revelation CONQUEST , a linear scaling, or O(N), density functional theory electronic structure code ConQuesT , a science fiction convention in Kansas City, Missouri