File:Electrostatic friction machines.jpg

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Electrostatic_friction_machines.jpg (711 × 347 pixels, file size: 31 KB, MIME type: image/jpeg)

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Description
English: A cylinder friction electric machine and a disk electric friction machine.
Date (first published)
Source Lectures on Electricity and Galvanism, in their physiological and therapeutical relations, delivered at the Royal College of Physicians, in March 1847, p.104, Philadelphia: William H. Hazard 1854
Author w:Golding Bird

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current01:34, 2 April 2011Thumbnail for version as of 01:34, 2 April 2011711 × 347 (31 KB)Spinningspark (talk | contribs){{Information |Description=A cylinder friction electric machine and a disk electric friction machine. |Source=''Lectures on Electricity and Galvanism, in their physiological and therapeutical relations'', delivered at the Royal College of Physicians, in M

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