Centimeter -- from Eric Weisstein's World of Physics

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Centimeter

A unit of length equal to 1/100 of a meter, abbreviated cm. The centimeter is the base unit of length in the cgs system of units. Originally defined as the width of three average-sized barleycorns laid end to end, the inch now has the more precise definition of exactly 2.54 cm.

Although most people trained in the MKS system of units find it hard to believe, the centimeter is also the cgs unit of capacitance (Bekefi and Barrett 1987, p. 654; Jackson 1998, p. 783; Purcell 1985).

Capacitance, cgs, Inch, Meter




References

Bekefi, G. and Barrett, A. H. Electromagnetic Vibrations, Waves, and Radiation. Cambridge, MA: MIT Press, p. 654, 1987.

Jackson, J. D. "Conversion of Equations and Amounts between SI Units and Gaussian Units." Appendix §4 in Classical Electrodynamics, 3rd ed. New York: Wiley, pp. 783-784, 1998.

Purcell, E. M. Backmatter in Electricity and Magnetism, 2nd ed. New York: McGraw-Hill, 1985.



© 1996-2007 Eric W. Weisstein

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