File:Electrostatic_induction_experiment.png
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Electrostatic_induction_experiment.png (789 × 559像素,文件大小:47 KB,MIME类型:image/png)
摘要
描述Electrostatic induction experiment.png |
English: Woodcut of experiment demonstrating electrostatic induction, from an 1872 physics text. The positive output terminal of an electrostatic machine at right is placed near one end of a sausage shaped brass cylinder on an insulating stand, at left. The positive charge from the machine induces charges in the ends of the cylinder The pairs of pith balls hanging on linen threads from the bottom of the cylinder are crude electroscopes; they give a rough measurement of how strong the charge is at each point by how wide apart they spread. They show that the charge is concentrated at both ends of the cylinder. Alterations to image: removed figure number, increased brightness slightly, converted to 32 color PNG. |
日期 | |
来源 | Retrieved from Adolphe Ganot & Edmund Atkinson (1872) Natural Philosophy for General Readers and Young Persons, D. Appleton & Co., New York, p.410, fig.314, translated and edited from Adolphe Ganot, Cours Élémentaire de Physique |
作者 | Adolphe Ganot and Edmund Atkinson |
授权 (二次使用本文件) |
Public domain in USA - first published in USA prior to 1923 |
许可协议
Public domainPublic domainfalsefalse |
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当前 | 2008年6月24日 (二) 17:21 | ![]() | 789 × 559(47 KB) | Chetvorno | {{Information |Description={{en|1=Woodcut of experiment demonstrating Wikipedia:electrostatic induction, from an 1872 physics text.}} |Source=Retrieved from [http://books.google.com/books?id=sKELAAAAYAAJ&pg=PA410 Adolphe Ganot & Edmund Atkinson (187 |
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