The CODATA Task Group on Fundamental Constants was established in 1969. Its purpose is to periodically provide the international scientific and technological communities with an internationally accepted set of values of the fundamental physical constants and closely related conversion factors for use worldwide. The first such CODATA set was published in 1973, the second in 1986, the third in 1998, and the fourth in 2002. 1969 (MCMLXIX) was a common year starting on Wednesday For other uses, see Number 1969. ... In science, a physical constant is a physical quantity whose numerical value does not change. ... This article lists conversion factors between a number of units of measurement. ...
The CODATA recommended values of fundamental physical constants are published at the NIST Reference on Constants, Units, and Uncertainty.
Peter J. Mohr and Barry N. Taylor (January 2005). CODATA recommended values of the fundamental physical constants: 2002. Reviews of Modern Physics77: 1–107. An in-depth discussion of how the CODATA constants were selected and determined.
CODATA (Committee on Data for Science and Technology) was established in 1966 as an interdisciplinary committee of the International Council of Science (ICSU), formerly the International Council of Scientific Unions.
The CODATA Task Group on Fundamental Constants was established in 1969.
The first such CODATA set was published in 1973, the second in 1986, the third in 1998, and the fourth in 2002.
CODATA (Committee on Data for Science and Technology) was established in 1966 as an interdisciplinary committee of the International Council of Science (ICSU), formerly the International Council of Scientific Unions.
The CODATA Task Group on Fundamental Constants was established in 1969.
The first such CODATA set was published in 1973, the second in 1986, the third in 1998, and the fourth in 2002.