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The constants listed here are known values of physical constants expressed in SI units; that is, physical quantities that are generally believed to be universal in nature and thus are independent of the unit system in which they are measured. Many of these are redundant, in the sense that they obey a known relationship with other physical ...
A physical constant, sometimes fundamental physical constant or universal constant, is a physical quantity that cannot be explained by a theory and therefore must be measured experimentally. It is distinct from a mathematical constant , which has a fixed numerical value, but does not directly involve any physical measurement.
Information in the Green Book is synthesized from recommendations made by IUPAC, the International Union of Pure and Applied Physics (IUPAP) and the International Organization for Standardization (ISO), including recommendations listed in the IUPAP Red Book Symbols, Units, Nomenclature and Fundamental Constants in Physics and in the ISO 31 ...
The term fundamental physical constant is sometimes used to refer to some universal dimensionless constants. Perhaps the best-known example is the fine-structure constant , α , which has an approximate value of 1 / 137.036 .
In physics, the term fundamental constant may refer to: Any physical constant which is part of an equation that expresses a fundamental physical law One of the fundamental dimensionless physical constants
The tables also include pure numbers, dimensionless ratios, or dimensionless physical constants; these topics are discussed in the article. Biology and medicine [ edit ]
Download as PDF; Printable version; ... Fundamental constants (11 P) ... G-factor (physics) Gas constant; Gaussian gravitational constant; H.
This template provides easy inclusion of the latest CODATA recommended values of physical constants in articles. It gives the most recent values published, and will be updated when newer values become available, which is typically every four years.