| 单词 | ultraviolet catastrophe |
| 释义 | > as lemmasultraviolet catastrophe a. Involving, producing, or pertaining to ultraviolet radiation or its use; ultraviolet catastrophe, an indefinite increase that the Rayleigh–Jeans law predicts should occur in the radiation emitted by a black body at successively shorter wavelengths (where the law in fact becomes invalid). ΘΚΠ the world > matter > physics > electromagnetic radiation > light > chromatism > [adjective] > ultraviolet > relating to ultraviolet radiation ultraviolet1934 1922 A. E. H. Tutton Crystallogr. II. li. 1139 This ultra-violet lamp is visible to the eye at close quarters owing to fluorescence of the retina of the eye itself; and the field of vision appears filled with a haze known as ‘lavender fog’, owing to fluorescence of the crystalline lens of the eye.] 1934 Discovery May 138/1 In the detection of forgery, the deciphering of illegible or faded documents, over-writing and the like..ultra-violet photography is the most useful process to employ. 1935 J. Dougall tr. M. Born Atomic Physics vii. 189 We have here what is called the ‘ultra-violet catastrophe’. 1958 New Biol. 27 12 The conclusion reached on a chemical basis regarding the presence of lignin has been confirmed using the ultra-violet microscope for spectro~micrographic purposes. 1966 M. Jammer Conceptual Devel. Quantum Mech. i. 17 A situation which was later, following Ehrenfest, referred to as the ‘ultraviolet catastrophe’. [Note] P. Ehrenfest,..Annalen der Physik 36, 91–118 (1911). The fourth chapter of this paper is entitled ‘Die Vermeidung der Rayleigh-Jeans-Katastrophe im Ultravioletten’, where the term ‘ultraviolet catastrophe’ appeared for the first time. 1974 Daily Tel. 17 Jan. 17/6 An ultra-violet photograph taken from an Aerobee rocket..has revealed the development of a huge ball of hydrogen. 1976 Progress in Sci. Culture (E. Majorana Centre) Spring 20 The paradox is the ultraviolet catastrophe of the theory of black-body radiation, which was predicted on the basis of classical statistical mechanics and Maxwell's theory of radiation. < as lemmas |
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