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词汇 Black Body Radiation
分类 英语词汇 英语翻译词典
释义

Black Body Radiation

原声例句
PBS趣味科普

Hot things glow because of black body radiation, which we talked about in our video about the color of the universe.

由于黑体辐射的关系，灼热的物体会发光，这在我们以前的影片中讲宇宙的颜色时谈过。

英语百科

Black-body radiation

As the temperature decreases, the peak of the black-body radiation curve moves to lower intensities and longer wavelengths. The black-body radiation graph is also compared with the classical model of Rayleigh and Jeans.
The color (chromaticity) of black-body radiation depends on the temperature of the black body; the locus of such colors, shown here in CIE 1931 x,y space, is known as the Planckian locus.
The temperature of a Pāhoehoe lava flow can be estimated by observing its color. The result agrees well with measured temperatures of lava flows at about 1,000 to 1,200 °C (1,830 to 2,190 °F).
9-year WMAP image (2012) of the cosmic microwave background radiation across the universe.[27][28]

Black-body radiation is the type of electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, or emitted by a black body (an opaque and non-reflective body) held at constant, uniform temperature. The radiation has a specific spectrum and intensity that depends only on the temperature of the body.
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