File:Sentry-box experiment.jpg
Sentry-box_experiment.jpg (152 × 256 pixels, file size: 7 KB, MIME type: image/jpeg)
Captions
Captions
Summary[edit]
| Description |
English: Crop of file
Benjamin Franklin’s sentry-box experiment. Drawing reproduced from the “Bowdoin MS”, which consists of a manuscript copy of all of Franklin’s earliest papers on electricity, copied by two amanuenses and corrected by Franklin, and sent by Franklin to Bowdoin in 1750. Cf. I. Bernard Cohen, The Two Hundredth Anniversary of Benjamin Franklin's Two Lightning Experiments and the Introduction of the Lightning Rod, in: Proceedings of the American Philosophical Society, Vol. 96, No. 3. (Jun. 20, 1952), pp. 331–366. |
||||||||||||||||||||
| Date | |||||||||||||||||||||
| Source | File:Franklin - Sentry-Box Experiment.jpg | ||||||||||||||||||||
| Author |
|
||||||||||||||||||||
Licensing[edit]
|
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. This work is in the public domain in the United States because it was published (or registered with the U.S. Copyright Office) before January 1, 1929. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:33, 18 July 2015 | | 152 × 256 (7 KB) | Doug Coldwell (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
There are no pages that use this file.
