trupi i zi

trupi i zi

An ideal or imaginary body that is absolutely black when cold, but is a perfect absorber of radiation and at the same time a perfect radiator. Black body temperatures are used to work out the theoretical laws of radiation and to calculate the temperature of the sun.

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품사: 명사
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분야/도메인: 천문학
카테고리: 화성
Company: NASA
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