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Encyclopedia > Specific power

In engineering, specific power (sometimes also power per unit mass or power density) refers to the amount of power delivered by an energy source, divided by some measure of the source's size or mass. Licensure and Qualifications for the Practice of Engineering The Engineers Ring The origin of then Engineers Ring Engineering Disasters and Learning from Failure American Society of Engineering Education (ASEE) ASEE engineering profile (2003) PDF EngineersEdge GlobalSpec Categories: Architecture and engineering occupations | Engineering ... // Mechanical power In physics, power (symbol: P) is the amount of work W done per unit of time t. ... Dimension (from Latin measured out) is, in essence, the number of degrees of freedom available for movement in a space. ... Mass is a property of physical objects that, roughly speaking, measures the amount of matter they contain. ...

This article explains the meaning of area as a physical quantity. ... A tall tower holds a wind turbine aloft where winds are consistently stronger. ... A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long. ... The minuscule, or lower-case, pi The mathematical constant π represents the ratio of a circles circumference to its diameter and is commonly used in mathematics, physics, and engineering. ... Volume (also called capacity) is a quantification of how much space an object occupies. ... A heat engine performs the conversion of heat energy to work by exploiting the temperature gradient between a hot source and a cold sink. Heat is transferred to the sink from the source, and in this process some of the heat is converted into work. ... The horsepower (hp) is the name of several non-metric units of power. ... A cubic inch is the volume of a cube which is one inch long on each edge. ... The term displacement can have one of several meanings, depending on context: Displacement (distance), a physical quantity in kinematics Particle displacement, acoustics of sound in air Displacement (fluid), a different physical quantity, used in fluid mechanics and navigation; used as a measure of a ships size Engine displacement, a... Power kilowatt (symbol: kW) is a unit for measuring power, equal to one thousand watts. ... The litre (or liter in US) is a metric unit of volume. ... For the workstation, see SGI Fuel. ... Four double-A (AA) batteries In science and technology, a battery is a device that stores energy and makes it available in an electrical form. ... Power-to-weight ratio is a measure commonly used when comparing various vehicles (or engines), including automobiles, motorcycles and aircraft. ... The international prototype, made of platinum-iridium, which is kept at the BIPM under conditions specified by the 1st CGPM in 1889. ... Solar Panel made by BP Solar The solar panels (photovoltaic arrays) on this small yacht at sea can charge the 12 V batteries at up to 9 Amps in full, direct sunlight. ...

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Laptop - Wikipedia, the free encyclopedia (2820 words)
Powerful laptops meant to be mainly used in a fixed location and infrequently carried out due to their weight and size; the latter provides more space for powerful components and a big screen - usually measuring 15 inches or more.
While laptops in 1991 were limited to the 80286 processor because of the energy demands of the more powerful 80386, the introduction of the Intel 386SX processor, designed for the specific power needs of laptops, marked the point at which laptop needs were included in CPU design.
There is a wide range of laptop specific processors available from Intel (Pentium M –with Centrino technology–, Celeron, Intel Core Duo and Centrino Duo) and from AMD (Athlon, Turion 64, and Sempron).
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