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The ancient Greek understanding of physics was limited to the statics of simple machines (the balance of forces), and did not include dynamics or the concept of work. During the Renaissance the dynamics of the Mechanical Powers, as the simple machines were called, began to be studied from the standpoint of how far they could lift a load, in addition to the force they could apply, leading ...
It provides an upper limit on the efficiency that any classical thermodynamic engine can achieve during the conversion of heat into work, or conversely, the efficiency of a refrigeration system in creating a temperature difference by the application of work to the system. It is not an actual thermodynamic cycle but is a theoretical construct.
In other words, heat always moves from hotter objects to colder objects unless energy is supplied to reverse the direction of heat flow, and not all heat energy can be converted into work in a cyclic process. Semiconductor – Series and parallel circuits – Shear force diagrams – Shear pin – Shear strength – Shear stress – Simple ...
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A performance standard for unshielded twisted pair cables for telephone and data within a building. Category 6 cable A performance standard for unshielded twisted pair cables for telephone and high speed data within a building. catenary A geometric form of curve, the shape of a uniform cable hanging between two supports. cathode ray oscilloscope
Production machinist, which may involve various related machining occupations that often overlap: Manual machine tool operator; CNC programmer is the person who takes the drawings made by engineers and draftsperson and creates a CNC program to cut the part; CNC setup hand, the person who sets up the machine and its tooling before the operator ...
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Manual labour, physical work done by humans; House work, housework, or homemaking; Working animal, an animal trained by humans to perform tasks; Work (physics), the product of force and displacement Work (electric field), the work done on a charged particle by an electric field; Work (thermodynamics), energy transferred by the system to its ...