thermal emission
[ˈθɜːrməl ɪˈmɪʃən]
nounpl: thermal emissions
emissão térmica
1. The release of electromagnetic radiation from a material or object due to its temperature
The thermal emission from the heated metal surface was detected by the infrared camera.
A emissão térmica da superfície de metal aquecida foi detectada pela câmera infravermelha.
2. In physics, the process by which heat energy is radiated away from an object in the form of electromagnetic waves
The sun's thermal emission in the infrared spectrum provides energy to Earth's atmosphere.
A emissão térmica do sol no espectro infravermelho fornece energia à atmosfera da Terra.
3. In astrophysics, radiation emitted by celestial bodies as a result of their internal heat
Astronomers study thermal emission from distant galaxies to determine their temperatures.
Os astrônomos estudam a emissão térmica de galáxias distantes para determinar suas temperaturas.
This is a scientific and technical term used primarily in academic, industrial, and research settings in both Brazil and the USA. In Brazil, it is commonly encountered in physics courses, engineering, and environmental monitoring contexts. The term is standardized across Portuguese-speaking regions and is crucial in modern thermal imaging technology used in security, medical diagnostics, and environmental science.
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