File:Chest tomb c.1776 to John Harrison (2).jpg
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Summary
[edit]DescriptionChest tomb c.1776 to John Harrison (2).jpg |
English: In Memory Of MR. JOHN HARRISON, late of Red-Lion Square, London.
Inventor of the TIME-KEEPER for ascertaining the LONGITUDE at Sea. He was born at Foulby, in the County of York, and was the Son of a Builder at that Place, who brought him up to the same Profession. Before he attained the Age of 21, He without any Instruction, employed himself in cleaning & repairing Clocks & Watches & made a few of the former, chiefly of Wood. At the Age of 25 He employed his Whole Time in Chronometrical Improvements. He was the Inventor of the Gridiron Pendulum and the Method of preventing the Effect of Heat and Cold upon Time keepers by Two Bars of different Metals fixed together*. He introduced the Secondary Spring to keep them going while winding up; and was the Inventor of most (or all) of the Improvements in Clocks & Watches during his Time. In the Year 1735, his first Time keeper was sent to Lisbon, and in 1764 his then much Improved fourth Time keeper having been sent to Barbadoes, the Commissioners of Longitude certified that it had determined the Longitude within one Third of Half a Degree of a great Circle, having erred not more than 40 Seconds in Time. After near fifty years close Application to the above Pursuits, he departed this Life on the 24th Day of March 1776, Aged 83. MRS. ELIZABETH HARRISON, Wife of the above MR. JOHN HARRISON departed this Life March 5th 1777, Aged 72” |
Date | |
Source | Own work |
Author | Spudgun67 |
Camera location | 51° 33′ 18.45″ N, 0° 10′ 52.94″ W | View this and other nearby images on: OpenStreetMap | 51.555126; -0.181372 |
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 15:10, 13 December 2018 | 5,184 × 3,888 (6.76 MB) | Spudgun67 (talk | contribs) | User created page with UploadWizard |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | SONY |
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Camera model | DSC-HX60V |
Exposure time | 1/40 sec (0.025) |
F-number | f/3.5 |
ISO speed rating | 80 |
Date and time of data generation | 12:31, 21 August 2016 |
Lens focal length | 4.3 mm |
Orientation | Normal |
Horizontal resolution | 350 dpi |
Vertical resolution | 350 dpi |
Software used | DSC-HX60V v2.10 |
File change date and time | 12:31, 21 August 2016 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 12:31, 21 August 2016 |
Meaning of each component |
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Image compression mode | 3 |
APEX brightness | 5.02890625 |
APEX exposure bias | 0 |
Maximum land aperture | 3.6171875 APEX (f/3.5) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire, compulsory flash suppression |
Supported Flashpix version | 1 |
Color space | sRGB |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |