File:Cooke_and_Wheatstone_electric_telegraph.jpg
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Summary
DescriptionCooke and Wheatstone electric telegraph.jpg |
English: William Fothergill Cooke and Charles Wheatstone's electric telegraph ("needle telegraph") from 1837 now in the London Science Museum |
Date | |
Source | Photo by User:geni |
Author | Geni |
Permission (Reusing this file) |
CC-BY-SA GFDL |
Licensing
I, the copyright holder of this work, hereby publish it under the following licenses:
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.http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue |
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Items portrayed in this file
depicts
December 2008
image/jpeg
7d11d40ca6196eec32dc5f9f0c9bdeb2fe5c58df
2,251,173 byte
3,052 pixel
2,420 pixel
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:57, 13 December 2011 | 2,420 × 3,052 (2.15 MB) | Rotatebot | Bot: Image rotated by 270° (EXIF-Orientation set from 6 to 1, rotated 0°) | |
16:32, 12 April 2009 | 3,052 × 2,420 (2.15 MB) | Geni | {{Information |Description={{en|1=Photo of a William Fothergill Cooke and Charles Wheatstone's electric Telegraph from 1837 now in th london science museam}} |Source=Photo by User:geni |Author=Geni |Date=dec 2008 |Permission=CC-BY-SA GFDL |other_versi |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
- Cooke and Wheatstone telegraph
- Electrical telegraph
- Electrical telegraphy in the United Kingdom
- List of Russian inventors
- Needle telegraph
- Telegraphy
- Wikipedia:Main Page history/2013 February 23
- Wikipedia:Recent additions/2013/February
- Template:Did you know nominations/Cooke and Wheatstone telegraph
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Metadata
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Camera manufacturer | Canon |
---|---|
Camera model | Canon PowerShot G9 |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/2.8 |
ISO speed rating | 200 |
Date and time of data generation | 16:59, 5 October 2007 |
Lens focal length | 9.036 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
File change date and time | 16:59, 5 October 2007 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 16:59, 5 October 2007 |
Meaning of each component |
|
Image compression mode | 5 |
Shutter speed | 5.90625 |
APEX aperture | 2.96875 |
Exposure bias | 0 |
Maximum land aperture | 2.96875 APEX (f/2.8) |
Metering mode | Pattern |
Flash | Flash fired, auto mode, red-eye reduction mode |
Supported Flashpix version | 1 |
Color space | sRGB |
Focal plane X resolution | 13,745.704467354 |
Focal plane Y resolution | 13,698.630136986 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |