File:Zarbula-set-hrs-on-equatorial.png
Size of this preview: 424 × 600 pixels. Other resolutions: 170 × 240 pixels | 339 × 480 pixels | 744 × 1,052 pixels.
Original file (744 × 1,052 pixels, file size: 204 KB, MIME type: image/png)
 | 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: Giovanni Francesco Zarbula was a cadranist active in Hautes Alpes in the 1830-1860s. His dialling technique was simple but effective and did not require magnetic compasses or protractors as all was done by geometric construction.
The protractor can be discarded as one make 45deg set squares, and a 60 deg equilateral |
|
| Source | Own work | |
| Author | Photograph by Clem Rutter, Rochester, Kent. (www.clemrutter.net). | |
| Permission (Reusing this file) |
|
Licensing
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 18:52, 14 May 2015 | | 744 × 1,052 (204 KB) | ClemRutter |
File usage
The following 2 pages use this file:
