@prefix mdl: <http://data.loterre.fr/ark:/67375/MDL> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

mdl: a skos:ConceptScheme .
mdl:-HK1FG8LD-S
  skos:prefLabel "Poynting's theorem"@en, "théorème de Poynting"@fr ;
  a skos:Concept ;
  skos:related mdl:-JLNCWCRL-2 .

mdl:-ZMC95J1W-0
  skos:prefLabel "loi de conservation"@fr, "conservation law"@en ;
  a skos:Concept ;
  skos:narrower mdl:-JLNCWCRL-2 .

mdl:-JLNCWCRL-2
  skos:definition "In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. This law, first proposed and tested by Émilie du Châtelet, means that energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another. For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes. If one adds up all forms of energy that were released in the explosion, such as the kinetic energy and potential energy of the pieces, as well as heat and sound, one will get the exact decrease of chemical energy in the combustion of the dynamite. Classically, conservation of energy was distinct from conservation of mass. However, special relativity shows that mass is related to energy and vice versa by E = mc², the equation representing mass–energy equivalence, and science now takes the view that mass-energy as a whole is conserved. Theoretically, this implies that any object with mass can itself be converted to pure energy, and vice versa. However, this is believed to be possible only under the most extreme of physical conditions, such as likely existed in the universe very shortly after the Big Bang or when black holes emit Hawking radiation. (Wikipedia, The Free Encyclopedia, <a href=\"https://en.wikipedia.org/wiki/Conservation_of_energy\" target=\"_blank\">https://en.wikipedia.org/wiki/Conservation_of_energy</a>)"@en, "La conservation de l'énergie est un principe physique, selon lequel l'énergie totale d'un système isolé est invariante au cours du temps. Ce principe, largement vérifié expérimentalement, est de première importance en physique, et impose que pour tout phénomène physique l'énergie totale initiale du système isolé soit égale à l'énergie totale finale, donc que de l'énergie passe d'une forme à une autre durant le déroulement du phénomène, sans création ni disparition d'énergie. Introduit par Leibniz et postulé en mécanique newtonienne, ce principe est démontrable en mécanique lagrangienne par le biais d'un théorème de Noether. (Wikipedia, L'Encylopédie Libre, <a href=\"https://fr.wikipedia.org/wiki/Conservation_de_l%27%C3%A9nergie\" target=\"_blank\">https://fr.wikipedia.org/wiki/Conservation_de_l%27%C3%A9nergie</a>)"@fr ;
  skos:prefLabel "conservation de l'énergie"@fr, "energy conservation"@en ;
  skos:hiddenLabel "Conservation énergie"@fr, "Energy conservation"@en, "conservations des énergies"@fr, "energy conservations"@en, "Conservation énergies"@fr ;
  a skos:Concept ;
  skos:exactMatch <https://fr.wikipedia.org/wiki/Conservation_de_l%27%C3%A9nergie>, <https://en.wikipedia.org/wiki/Conservation_of_energy> ;
  skos:broader mdl:-ZMC95J1W-0 ;
  skos:related mdl:-HK1FG8LD-S ;
  skos:inScheme mdl: .