conservation of energy | has conserved quantity energy | ![has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:33:56.0 has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:33:56.0](facet.gif) |
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 source: Hawley, J.F., Halcomb, K.H. 1998 Foundations of Modern Cosmology, Oxford University Press, 2001-09-27 09:33:56.0](facet.gif) |
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 has source: Silk, J. 1990 The Big Bang, W. H. Publishers, New York, 2001-09-27 09:33:56.0](facet.gif) |
is a kind of conservation law | ![2001-09-27 09:33:56.0 2001-09-27 09:33:56.0](facet.gif) |
law | has discoverer | ![2001-09-27 09:33:53.0 2001-09-27 09:33:53.0](facet.gif) |
theory | has validity correct or incorrect with caveats | ![2001-09-27 09:33:53.0 2001-09-27 09:33:53.0](facet.gif) |
has author or reasearch group | ![2001-09-27 09:33:53.0 2001-09-27 09:33:53.0](facet.gif) |
has domain a field of research | ![2001-09-27 09:33:53.0 2001-09-27 09:33:53.0](facet.gif) |
has date or a range of dates for which the theory was active | ![2001-09-27 09:33:53.0 2001-09-27 09:33:53.0](facet.gif) |