Wikipedia: History of Candela

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Candela is one of the seven SI base units. It is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540x10^12 hertz and that has a radiant intensity in that direction of (1/683)watt? per steradian.

Candela (Latin for candle?) is one of the seven SI base units. It is the luminous intensity, in a given direction, of a source that emits monochromatic radiation of frequency 540x10^12 hertz and that has a radiant intensity in that direction of (1/683)watt? per steradian.

	Revision 3 . . (edit) July 28, 2001 3:07 pm by Gerald Squelart [Added latin origin.]
	Revision 2 . . July 27, 2001 4:01 pm by Tobias Hoevekamp
	Revision 1 . . April 5, 2001 4:21 pm by Tobias Hoevekamp