blackbody radiation
1
8.5
- noun
- /ˈblækˌbɑdi ˌreɪdiˈeɪʃən/
- Specialized
:
radiación de cuerpo negro
- Remember, 300 W/m² corresponds to the blackbody radiation of an object about 23 degrees F warm or -5 degrees C.
Examples
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Non-thermal emission does not have the characteristic signature curve of blackbody radiation.
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Brown dwarfs and black dwarf stars are stars whose primary source of heat is a slow gravitational collapse that is literally "squeezing" gravitational energy out in the form of blackbody radiation, a process that can take billions of years.
Blog text (18) -
His research dealt with blackbody radiation and the photoelectric effect.
Academic text (2003) -
Wires are ideal electromagnetic receivers, and at room temperature, circuits are awash in blackbody radiation.
Academic text (2004) -
Strictly, we should be using the equivalent blackbody radiation in W/m² for the averaging, but temperatures are easier to understand.
Blog text (29) -
Abraham Pais refers to Nichols's paper, among others, commenting, "These experimental developments are of fundamental importance for... the quantum theory, since they were crucial to the discovery of the blackbody radiation law."
Academic text (1993) -
As I understand it, the blackbody radiation dependence of T4 applies to "cavity radiation" emanating into a vacuum from a small hole in an enclosed volume whose inner walls are at a uniform temperature.
Blog text (18) -
Scientists call this blackbody radiation.
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His research dealt with blackbody radiation and the photoelectric effect.
Synonyms
1
7.6
Light and heat given off by an object that absorbs all light, changing colour with temperature
Surface Forms
Morphology
The phrase is directly compositional: 'blackbody' (a perfect absorber/emitter) combined with 'radiation' (energy emitted) yields the meaning 'radiation emitted by a blackbody.' Although the concept is technical, a learner who knows the constituent definitions can immediately derive the MWE meaning.
Etymology
Blackbody radiation comes from the image of a perfect black body that 'absorbs all light' and then glows, so the light it gives off, its radiation, 'depends only on how hot it is'.