File:George Adams sea quadrant.jpg
George_Adams_sea_quadrant.jpg (600 × 509 pixels, file size: 58 KB, MIME type: image/jpeg)
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editDescriptionGeorge 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. |
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Source | Own work |
Author | Neochichiri11 |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:39, 21 May 2015 | ![]() | 600 × 509 (58 KB) | Neochichiri11 (talk | contribs) | User created page with UploadWizard |
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Date and time of data generation | 12:02, 25 March 2015 |
Lens focal length | 4.8 mm |
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Bits per component |
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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 |
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APEX brightness | 3.39 |
APEX exposure bias | 0 |
Maximum land aperture | 2.28 APEX (f/2.2) |
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DateTime subseconds | 60 |
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Sensing method | One-chip color area sensor |
Scene type | A directly photographed image |
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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 |