File:Hawksbees Electrical Machine by Jean-Antoine Nollet.jpg
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Summary
[edit]DescriptionHawksbees Electrical Machine by Jean-Antoine Nollet.jpg |
English: Drawing of an electrostatics experiment by English scientist Francis Hauksbee (or Hawksbee)(1660-1713) using an early electrostatic generator of his design, drawn by French clergyman and scientist Jean-Antoine Nollet, from his 1767 book Leçons de Physique. The electrostatic generator (right) consisted of a hollow ball of glass rotated by the man turning the crank. The friction of a man's hands on the ball created a charge of static electricity, which was conducted by the chain to the metal bar suspended by insulating silk cords. This experiment apparently demonstrated electrostatic induction. The woman (center) standing on a pad which insulated her from the ground, holding a metal plate in her right hand near another one hanging from the bar, had an electric charge induced in her body, which was communicated to the metal serving plate she is holding in her left hand. The man at right is performing some experiment with the charge; possibly demonstrating that fine powder sprayed on the plate is repelled into the air. Alternatively, the flask he is holding may be a Leyden jar which he is charging from the plate. The drawing illustrates how scientific research was conducted during the Enlightenment, as a cultured pastime of the genteel educated elite, performed in drawing rooms and salons, with women taking part. |
Date | |
Source | Downloaded July 28, 2013 from Agustin-Privat Deschanel (1889) Elementary Treatise on Natural Philosophy, 10th Ed., Part 3: Electricity and Magnetism, D. Appleton and Co., New York, p. 574, fig. 350 on Google Books. Credited in source to Abbé Nollet Leçons de Physique, 1767 |
Author | Jean-Antoine Nollet |
Licensing
[edit]Public domainPublic domainfalsefalse |
This work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer. You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. | |
This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. |
https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public Domain Mark 1.0falsefalse
Annotations InfoField | This image is annotated: View the annotations at Commons |
Glass globe electrostatic generator produces electric charge by friction of hands on surface
Chain picks up electric charge from globe transfers it to suspended metal rod
Metal rod suspended by nonconducting silk cords transfers charge to metal plate
Charge is induced in bottom metal plate and woman's body by electrostatic induction
Woman is standing on insulating support to prevent charge on her body from leaking off to ground
Metal serving dish receives charge from woman's body. Standing man is performing some type of experiment to demonstrate the charge.
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current | 15:22, 14 September 2013 | 2,096 × 1,416 (906 KB) | Chetvorno (talk | contribs) | User created page with UploadWizard |
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