Image:DSCN1739-thomson-tide-machine.jpg
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| This is a file from the Wikimedia Commons. The description on its description page there is shown below. |
| Description |
Tide predicting machine, by Sir William Thomson in 1876. Location: Science Museum, London. Photo: William M. Connolley, 2005/02. The accompanying plaque says: this, the first full sized machine for predicting tides, combined ten tidal components (one pulley for each componenet). It could trace the heights of the tides for one year in about four hours. See-also http://www.bartleby.com/30/16.html, esp. figure 132. |
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| Date |
upload on 20:53, February 19, 2005 |
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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 image.
| Camera manufacturer | NIKON |
|---|---|
| Camera model | E950 |
| Horizontal resolution | 300 dpi |
| Vertical resolution | 300 dpi |
| Software used | v981p-79 |
| File change date and time | 14:47, 18 February 2005 |
| Y and C positioning | 2 |
| Exposure time | 1/5 sec (0.2) |
| F-number | f/2.9 |
| Exposure Program | Normal program |
| ISO speed rating | 80 |
| Exif version | 2.1 |
| Date and time of data generation | 14:47, 18 February 2005 |
| Date and time of digitizing | 14:47, 18 February 2005 |
| Image compression mode | 2 |
| Exposure bias | 0 |
| Maximum land aperture | 2.6 |
| Metering mode | Pattern |
| Light source | Unknown |
| Flash | 0 |
| Lens focal length | 10.2 mm |
| Color space | sRGB |
| White Balance | Auto white balance |
