File:Geiger-1910-fig1.GIF

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DescriptionGeiger-1910-fig1.GIF	English: An original illustration by Hans Geiger of the tube by which he observed the scattering of alpha particles by metal foils. A - conical tube B - bulb containing "radium emanation" (radon-222) D - narrow aperture E - metal foil K - stopcock through which the radium emanation was introduced to the bulb S - zinc sulfide screen
Date	18 April 2014, 14:29:28
Source	Hans Geiger (1910). The Scattering of the α-Particles by Matter. Proceedings of the Royal Society, vol. A83, p. 492-504.
Author	Hans Geiger

Public domain	This media file is in the public domain in the United States. This applies to U.S. works where the copyright has expired, often because its first publication occurred prior to January 1, 1929, and if not then due to lack of notice or renewal. See this page for further explanation.	United States
	This image might not be in the public domain outside of the United States; this especially applies in the countries and areas that do not apply the rule of the shorter term for US works, such as Canada, Mainland China (not Hong Kong or Macao), Germany, Mexico, and Switzerland. The creator and year of publication are essential information and must be provided. See Wikipedia:Public domain and Wikipedia:Copyrights for more details.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	19:50, 11 May 2014		1,016 × 680 (42 KB)	Kurzon (talk \| contribs)	....
	12:30, 18 April 2014		554 × 370 (27 KB)	Kurzon (talk \| contribs)	User created page with UploadWizard

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