Report on the Questionnaire Survey “Fundamental Constants, Material Constants, and Physical Standards”

The Fundamental Physical Constants

established in 1966 as an interdisciplinary committee of the International Council of Scientific Unions (now the International Council of Science). Three years later, CODATA created the task group on fundamental constants to periodically provide the scientific and technological communities with a self-consistent set of internationally recommended values for the basic constants and conversion fa...

Recommended Values of the Fundamental Physical Constants: A Status Report

We summarize the principal advances made in the fundamental physical constants field since the completion of the 1986 CODATA least-squares adjustment of the constants and discuss their implications for both the 1986 set of recommended values and the next least-squares adjustment. In general, the new results lead to values of the constants with uncertainties 5 to 7 times smaller than the uncerta...

Fundamental Physical Constants and Conversion Factors

This section provides a summary of important units for geomagnetism and geoelectricty. In addition, a summary of conversion factors and fundamental units of relevance to earth and planetary science are presented for reference. Despite the sentiment expressed above by Vigoureux, it still seems that plenty of us slave over SI units in geomagnetism. There is probably no other scientific discipline...

Cosmological Variability of Fundamental Physical Constants

Fundamental Physical Constants: Looking from Different Angles

We consider fundamental physical constants which are among a few of the most important pieces of information we have learned about Nature after its intensive centurieslong studies. We discuss their multifunctional role in modern physics including problems related to the art of measurement, natural and practical units, origin of the constants, their possible calculability and variability etc. PA...