the ratio of the power emitted by a source of radiation to the power consumed by itSymbol: η e
Inanimate Objects With Body IssuesRead more in this article about some frequently asked questions and fun facts related to our definitions.
Typewriters Were Originally Created To Help The BlindOnce regarded as an indispensable device for any writer, the typewriter has long been regarded for both its beauty and functionality. But they were actually first invented to help the blind.
- radiant ,
- radiant emittance,
- radiant energy,
- radiant exitance,
- radiant flux,
- radiant heat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012