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...d composition of [[energy consumption]], its changes or the transformation of energy.<ref>[https://web.archive.org/web/20130116143010/http://www.ag-energ ...ed - this fits to [[Thermodynamics#Laws of thermodynamics|the first law of thermodynamics]], which assigns energy this property. But energy splits up during usage an ...

{{about|the history of the scientific concept of energy|the history of how humans use energy|Energy }} ...ars for the first time{{When|date=June 2020}} in the 4th century BCE works of [[Aristotle]] (OUP V, 240, 1991) (including ''Physics'', ''Metaphysics'', ' ...

...iption|Hypothesis that physics experiments will behave the same regardless of when they are conducted}} ...s Limited|isbn=978-1-84614-702-9|chapter=3}}</ref> In mathematics, the set of all time translations on a given system form a [[Lie group]]. ...

...system (systems theory)|open system]] [[thermodynamics]], where an example of an open system is a biological cell. According to [[Howard T. Odum]], "The ...tka]] (1922a, b). Lotka's statement sought to explain the Darwinian notion of evolution with reference to a physical principle. Lotka's work was subseque ...

* Significant means a major topic, or a smaller topic of special relevance. * National topics should only be included if they are of international interest (because they are unusual, thought-provoking, or cut ...

{{Short description|Overview of and topical guide to physics}} {{see also|Index of physics articles}} ...

{{Short description|Physics of heat, work, and temperature}} {{Thermodynamics}} ...

{{Thermodynamics|expanded=Potentials}} ...ge in the Helmholtz energy during a process is equal to the maximum amount of work that the system can perform in a thermodynamic process in which temper ...

{{Thermodynamics|expanded=Potentials}} ...the law of [[conservation of energy]], a foundation of the [[first law of thermodynamics]]. ...

...asurement|unit]] of [[force]] used in some [[System of measurement|systems of measurement]], including [[English Engineering units]]{{efn|Despite its nam ...nit of [[energy (physics)|energy]], or ''[[pound-foot]]'' (lbf⋅ft), a unit of [[torque]]. ...

{{Short description|Application of an external magnetic field to a ferromagnet}} ...ainLoop.svg|thumb|right|400px|[[Stoner–Wohlfarth model|Theoretical model]] of [[magnetization]] {{math|<var>m</var>}} against [[magnetic field]] {{math| ...

...lowatt hour#Watt hour multiples and billing units|TWh]] (or 13,792 [[tonne of oil equivalent|Mtoe]]) by region in 2017 (IEA, 2019)<ref name="IEA-Report-k ...process. It encompasses energy contained in raw [[fuel]]s and other forms of energy, including waste, received as input to a [[system]]. Primary energy ...

{{Short description|Work being continuously done without an external input of energy}} ...m-center to top-right) to pump water to refill the tank. The rotary motion of the water wheel also drives two grinding wheels (bottom-right) and is shown ...

{{Short description|Law of physics and chemistry}} {{About|the law of conservation of energy in physics |sustainable energy resources|Energy conservation}} ...

'''Fleming's left-hand rule for electric motors''' is one of a pair of visual [[mnemonic]]s, the other being [[Fleming's right-hand rule for gener ...ing out the direction of motion in an [[electric motor]], or the direction of electric current in an [[electric generator]]. ...

...calar physical quantity|an overview of and topical guide to energy|Outline of energy|other uses}} | image = Energy Arc (central electrode of a Plasma Lamp).jpg ...

...of state |type=Ph.D. |location=Oldenburg, Germany |publisher=[[University of Oldenburg|Carl-von-Ossietzky Universität Oldenburg]] |year=2000 |isbn=3-826 ...e ferromagnet–paramagnet transition ([[Curie temperature]]) in the absence of an external magnetic field.<ref>{{Cite book|last=Stanley|first=H. Eugene|ur ...

{{Short description|1=Overview of and topical guide to energy}} {{See also|Index of energy articles}} ...

{{Short description|Measure of energy in a thermodynamic system}} {{Thermodynamics |potentials}} ...

{{short description|Practical application of scientific knowledge}} ...work=Contributions to a Philosophy of Technology: Studies in the Structure of Thinking in the Technological Sciences |pages=19–39 |editor-last=Rapp |edit ...