Radiant energy is the energy of electromagnetic waves. The quantity of radiant energy may be calculated by integrating radiant flux (or power) with respect to time and, like all forms of energy, its SI unit is the joule. The term is used particularly when radiation is emitted by a source into the surrounding environment. Radiant energy may be visible or invisible to the human eye.
Read more about Radiant Energy: Terminology Use and History, Analysis, Applications, SI Radiometry Units
Famous quotes containing the words radiant and/or energy:
“Dear and most respected bookcase! I welcome your existence, which has for over one hundred years been devoted to the radiant ideals of goodness and justice.”
—Anton Pavlovich Chekhov (1860–1904)
“Reckoned physiologically, everything ugly weakens and afflicts man. It recalls decay, danger, impotence; he actually suffers a loss of energy in its presence. The effect of the ugly can be measured with a dynamometer. Whenever man feels in any way depressed, he senses the proximity of something “ugly.” His feeling of power, his will to power, his courage, his pride—they decline with the ugly, they increase with the beautiful.”
—Friedrich Nietzsche (1844–1900)