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conservation of energy
subjectfact 
conservation of energyhas conserved quantity energyhas source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:33:56.0
has definition The principle that the total energy of a closed system never changes, that energy is only converted from one form to another. This principle must be enlarged under special relativity to include mass-energy.has source: Hawley, J.F., Halcomb, K.H. 1998 Foundations of Modern Cosmology, Oxford University Press, 2001-09-27 09:33:56.0
has definition The total energy of a system (including kinetic energy and gravitational energy) is conserved and does not vary. Thus, kinetic energy can only increase at the expense of gravitational potential energy. Modern physics has modified the law of conservation of energy, since matter can be created or annihilated; a more general law is the conservation of mass and energy.has source: Silk, J. 1990 The Big Bang, W. H. Publishers, New York, 2001-09-27 09:33:56.0
is a kind of conservation law2001-09-27 09:33:56.0
lawhas discoverer2001-09-27 09:33:53.0
theoryhas validity correct or incorrect with caveats2001-09-27 09:33:53.0
has author or reasearch group2001-09-27 09:33:53.0
has domain a field of research2001-09-27 09:33:53.0
has date or a range of dates for which the theory was active2001-09-27 09:33:53.0