Image:Holtz influence machine.jpg

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Description	A Holtz influence machine (an electrostatic generator). Legend: R : Pulley to rotate the non-fixed disk A, A' : Holes in the fixed glass disk S, S' : Paper coverings of A, A' s, s' : Points from S, S' towards the centers of A, A' K, K' : Adjustable brass bars
Source	http://runeberg.org/nfbg/0119.html
Date	1907
Author	Nordisk Familjebok
Permission (Reusing this image)	see below

English: This image was first published in 1st or 2nd edition of Nordisk familjebok (1904–1926). The copyrights for that book have expired and this image is in the public domain. Svenska: Denna bild publicerades första gången i den första eller andra upplagan av Nordisk familjebok (1904–1926). Upphovsrätten för det verket har gått ut, och bilderna är fria att använda. Deutsch: Dieses Bild stammt aus der ersten oder zweiten Version des Nordisk familjebok (1904–1926). Das Werk ist gemeinfrei. Français : Cette image a été publiée dans la 1ère ou la 2ème édition du Nordisk familjebok (1904–1926). Les droits d'auteur sur cet ouvrage ont expiré et cette image se trouve par conséquent dans le domaine public.

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