Radioactivity of Dust
IT is well known that the dust particles contained in moist air streaming with considerable velocity through a small hole towards a plane surface are deposited on it. This effect is currently used to determine the content of dust in the air by means of dust-counters. We thought it would be interesti...
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Veröffentlicht in: | Nature 1949-04, Vol.163 (4145), p.570-570 |
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