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fundamental physical constant

subject fact

fundamental physical constant has value changes in value are due solely to an increase in measurement accuracy or convention 2001-09-27 09:32:59.0
has accuracy
has unit
is a kind of constant has URL: http://physics.nist.gov/PhysRefData/contents.html, 2001-09-27 09:32:59.0

Kinds of fundamental physical constant :

atomic constant (9 kinds, 61 facts)
electromagnetic constant (7 kinds, 40 facts)
particle constant (33 kinds, 165 facts) - a fundamental physical constant quantifying a particle property
physico chemical constant (12 kinds, 78 facts)
universal constant (10 kinds, 60 facts)

fundamental physical constant	has value changes in value are due solely to an increase in measurement accuracy or convention
	has accuracy
	has unit
	is a kind of constant