Plik:Electrophorus device.png

Electrophorus_device.png(603 × 485 pikseli, rozmiar pliku: 37 KB, typ MIME: image/png)

Opis

Opis
English: Drawing of electrophorus electrostatic generator, invented by Johan Carl Wilcke in 1764, from an 1840 chemistry text. It consists of a 'cake' of dielectric resinous material like wax, at bottom, and a metal plate on an insulated handle that can be placed on it. After charging the bottom plate by rubbing with fur, the top plate could be repeatedly charged by placing it on the surface and grounding the top by touching the small ball, then removing it. Alterations: removed caption and part labels, increased brightness.
Data
Źródło Downloaded 2007-12-27 from Robert Hare (1840) A Compendium of the Course of Chemical Instruction in the Medical Department of the University of Pennsylvania, 4th Ed., Part 1, J.G. Auner, Philadelphia, p.49 on Google Books
Autor Robert Hare
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(Ponowne użycie tego pliku)
Public domain - published in the USA before 1923

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Public domain

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An electrophorus from 1840

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Data i czasMiniaturaWymiaryUżytkownikOpis
aktualny10:29, 27 gru 2007Miniatura wersji z 10:29, 27 gru 2007603 × 485 (37 KB)Chetvorno{{Information |Description=Drawing of electrophorus electrostatic generator, invented by Johan Carl Wilcke in 1764. Alterations: removed caption and part labels, increased brightness. |Source=Downloaded 2007-12-27 from [http://books.google.com/books?id=e

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