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Title: Two photographs (pair) showing the emission of a beta-ray fr [Go to resource]
Description: Two photographs (pair) showing the emission of a beta-ray from thorium C followed by the emission of an alpha-ray from thorium C1 obtained by introducing a radio-active gas into the expansion chamber License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Source: Science Museum Identifier: 1937-222 Go to resource More Like this...
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