| 单词 | cloud chamber |
| 释义 | > as lemmascloud chamber cloud chamber n. an apparatus, invented by C. T. R. Wilson, used for experiments involving water vapour, esp. one containing air or other gas super-saturated with water vapour, through which charged particles are passed and become identifiable after condensation of the vapour; cf. Wilson n.2 ΘΚΠ the world > matter > chemistry > equipment or apparatus > [noun] > chambers for specific reactions poison tower1839 pressure chamber1857 Glover (also Glover's) tower1871 cloud chamber1897 bubble chamber1902 proportional counter1932 the world > matter > physics > atomic physics > particle physics > apparatus for detecting charged particles > [noun] cloud chamber1897 Wilson1917 1897 C. T. R. Wilson in Philos. Trans. (Royal Soc.) A. 189 269 Watching the behaviour of the air in the cloud chamber. 1911 C. T. R. Wilson in Proc. Royal Soc. A. 85 285 The clouds are viewed through the roof of the cloud-chamber, which is of glass, coated below with a uniform layer of clear gelatine. 1934 Nature 28 Apr. 640/2 The instruments with which the [cosmic] rays have been investigated have been the ionisation chamber, the counter and the cloud chamber. 1941 Electronic Engin. 14 539 The values found in cloud chamber experiments. 1965 New Scientist 29 Apr. 306/1 The cloud chamber reveals charged particles by the preferential deposition along their trajectories of droplets condensed from a saturated vapour or vapour gas mixture. < as lemmas |
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