File:HD Actinograph.jpg
Size of this preview: 493 × 600 pixels. Other resolutions: 197 × 240 pixels | 395 × 480 pixels | 721 × 877 pixels.
Original file (721 × 877 pixels, file size: 217 KB, MIME type: image/jpeg)
| Description | English: I took this picture of my Hurter & Driffield's Actinograph, a boxwood/brass/cardboard two-slide slide rule. Русский: Актинограф прибор измеряющий химическую интенсивность и напряжение лучей источника. |
| Date | 30 December 2006 (original upload date) |
| Source | Transferred from en.wikipedia to Commons. |
| Author | Dicklyon at English Wikipedia |
Licensing
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This work has been released into the public domain by its author, Dicklyon at English Wikipedia. This applies worldwide. In some countries this may not be legally possible; if so: Dicklyon grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law. |
Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2006-12-30 04:28 Dicklyon 721×877× (222014 bytes) I took this picture of my '''Hurter & Driffield's Actinograph''', a boxwood/brass/cardboard two-slide slide rule.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:45, 24 January 2009 | | 721 × 877 (217 KB) | Svajcr | {{Information |Description={{en|I took this picture of my '''Hurter & Driffield's Actinograph''', a boxwood/brass/cardboard two-slide slide rule.}} |Source=Transferred from [http://en.wikipedia.org en.wikipedia] |Date=2006-12-30 (original upload date) |Au |
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