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conservation of mass and energy

subject fact

conservation of mass and energy has conserved quantity mass and energy has source: Hopkins, J. 1976 Glossary of Astronomy and Astrophysics, University of Chicago Press, 2001-09-27 09:33:56.0
has definition Important physical principle and one of the basic laws of physics stating that matter is neither created nor destroyed (although mass may become energy, the energy quantitatively represents the mass). One exception to this principle is a singularity; another follows from the theory of virtual particles. has source: Abbot, D. 1984 Astronomers, Peter Bedrick Books, New York, 2001-09-27 09:33:56.0
is a kind of conservation law

law has discoverer 2001-09-27 09:33:53.0

theory has validity correct or incorrect with caveats
has author or reasearch group
has domain a field of research
has date or a range of dates for which the theory was active

conservation of mass and energy	has conserved quantity mass and energy
	has definition Important physical principle and one of the basic laws of physics stating that matter is neither created nor destroyed (although mass may become energy, the energy quantitatively represents the mass). One exception to this principle is a singularity; another follows from the theory of virtual particles.
	is a kind of conservation law
law	has discoverer
theory	has validity correct or incorrect with caveats
	has author or reasearch group
	has domain a field of research
	has date or a range of dates for which the theory was active