File:Crushed rod pollock barraclough.jpg
Size of this preview: 185 × 598 pixels. Other resolutions: 74 × 240 pixels | 480 × 1,552 pixels.
Original file (480 × 1,552 pixels, file size: 130 KB, MIME type: image/jpeg)
 | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
Summary
| Description |
English: A photograph of a section of the crushed lightning rod first described by J.A. Pollock and S. Barraclough, 1905, Proc. R. Soc. New South Wales 39, 131. They correctly described the crushing mechanism as a result of the interaction of the large current flowing in the conductor with its own magnetic field. |
| Source | Historical collection of the School of Physics, University of Sydney, Australia |
| Author | Assoc. Prof Brian James |
Licensing
Brian James, the copyright holder of this work, hereby publishes it under the following license:
|
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
  
|
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
| Attribution: Brian James | ||
| ||
| This licensing tag was added to this file as part of the GFDL licensing update. |
Original upload log
Transferred from en.wikipedia to Commons using FtCG.
The original description page was here. All following user names refer to en.wikipedia.
| Date/Time | Dimensions | User | Comment |
|---|---|---|---|
| 07:04, 29 August 2007 | 480 × 1,552 (132,749 bytes) | w:en:Oz tangles (talk | contribs) | (author: Brian James photographer: Brian James organisation: School of Physics, University of Sydney, Australia licensing: the author of this work has given me permission to release this image into the public domain under the GFDL license. Description: A) |
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 17:23, 26 December 2011 | | 480 × 1,552 (130 KB) | Bulwersator | Transferred from en.wikipedia: see original upload log above |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Global file usage
The following other wikis use this file:
- Usage on ar.wikipedia.org
- Usage on fr.wikipedia.org
- Usage on ja.wikipedia.org
- Usage on pl.wikipedia.org
- Usage on ps.wikipedia.org
- Usage on ur.wikipedia.org
