File:George Adams sea quadrant.jpg
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George_Adams_sea_quadrant.jpg (600 × 509 pixels, file size: 58 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
DescriptionGeorge Adams sea quadrant.jpg |
English: This is the only known sea quadrant made by George Adams in 1751. The piece is hand-signed, dated, and serial numbered by Adams himself. The piece was purchased in 1774 by Francois Boyer, a professor of navigation and and mathematics at the French Royal Navy School in Lorient. The sea quadrant stayed with the Boyer family until it went up for auction in 2014. The piece is in beautiful condition and looks like it was barely used, if ever. It is in the collection at The Mariners' Museum, Newport News, VA. |
Date | |
Source | Own work |
Author | Neochichiri11 |
Licensing
I, the copyright holder of this work, hereby publish it under the following license:
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This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
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- 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.
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25 March 2015
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Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:39, 21 May 2015 | ![]() | 600 × 509 (58 KB) | Neochichiri11 | User created page with UploadWizard |
File usage
The following pages on the English Wikipedia use this file (pages on other projects are not listed):
Metadata
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Camera manufacturer | samsung |
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Camera model | SM-G900P |
Exposure time | 1/30 sec (0.033333333333333) |
F-number | f/2.2 |
ISO speed rating | 40 |
Date and time of data generation | 12:02, 25 March 2015 |
Lens focal length | 4.8 mm |
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Width | 5,312 px |
Height | 2,988 px |
Bits per component |
|
Pixel composition | RGB |
Orientation | Normal |
Number of components | 3 |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop Elements 11.0 Windows |
File change date and time | 08:56, 21 May 2015 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.2 |
Date and time of digitizing | 12:02, 25 March 2015 |
Meaning of each component |
|
Shutter speed | 4.9 |
APEX aperture | 2.27 |
APEX brightness | 3.39 |
Exposure bias | 0 |
Maximum land aperture | 2.28 APEX (f/2.2) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash fired |
DateTime subseconds | 60 |
DateTimeOriginal subseconds | 60 |
DateTimeDigitized subseconds | 60 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
Scene type | A directly photographed image |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Focal length in 35 mm film | 31 mm |
Scene capture type | Standard |
Unique image ID | F16QLHF01SB |
GPS tag version | 0.0.2.2 |
Date metadata was last modified | 04:56, 21 May 2015 |
Unique ID of original document | E43228A59723288FF1344B193F780C84 |
IIM version | 57,726 |
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