File:An unusual twig on a woodland floor - geograph.org.uk - 1723199.jpg
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An_unusual_twig_on_a_woodland_floor_-_geograph.org.uk_-_1723199.jpg (640 × 480 pixels, file size: 148 KB, MIME type: image/jpeg)
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DescriptionAn unusual twig on a woodland floor - geograph.org.uk - 1723199.jpg |
English: An unusual twig on a woodland floor It would appear that this is a fungus growing out of this twig in the leaf litter in woodland at High Enoch, but it is in fact ice crystals caused by freezing water being extruded out through small cracks in the wood. This, together with polysaccharide material, produces the white strand structure. My thanks to fellow geographer M J Richardson and his mycologist friend R Watling for the identification.
This phenomenon is known as "frost flowers" or "feather frost" - see the following link sent to me by Sylvia Duckworth - http://www.its.caltech.edu/~atomic/snowcrystals/frost/frost.htm |
Date | |
Source | From geograph.org.uk |
Author | Walter Baxter |
Attribution (required by the license) InfoField | Walter Baxter / An unusual twig on a woodland floor / |
InfoField | Walter Baxter / An unusual twig on a woodland floor |
Camera location | 55° 17′ 26″ N, 3° 45′ 56″ W | View this and other nearby images on: OpenStreetMap | 55.290560; -3.765500 |
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Object location | 55° 17′ 26″ N, 3° 45′ 56″ W | View this and other nearby images on: OpenStreetMap | 55.290560; -3.765500 |
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Licensing[edit]
This image was taken from the Geograph project collection. See this photograph's page on the Geograph website for the photographer's contact details. The copyright on this image is owned by Walter Baxter and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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This file is licensed under the Creative Commons Attribution-Share Alike 2.0 Generic license.
Attribution: Walter Baxter
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 10:59, 5 March 2011 | 640 × 480 (148 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=An unusual twig on a woodland floor It would appear that this is a fungus growing out of this twig in the leaf litter in woodland at High Enoch, but it is in fact ice crystals caused by freezing wat |
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Camera manufacturer | Canon |
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Camera model | Canon PowerShot A570 IS |
Exposure time | 1/60 sec (0.016666666666667) |
F-number | f/3.5 |
ISO speed rating | 80 |
Date and time of data generation | 10:17, 18 February 2010 |
Lens focal length | 5.8 mm |
Orientation | Normal |
Horizontal resolution | 180 dpi |
Vertical resolution | 180 dpi |
Software used | Adobe Photoshop CS Windows |
File change date and time | 22:23, 19 February 2010 |
Y and C positioning | Centered |
Exif version | 2.2 |
Date and time of digitizing | 10:17, 18 February 2010 |
Image compression mode | 3 |
APEX shutter speed | 5.90625 |
APEX aperture | 3.625 |
APEX exposure bias | 0 |
Maximum land aperture | 2.75 APEX (f/2.59) |
Metering mode | Pattern |
Flash | Flash did not fire, auto mode |
Color space | sRGB |
Focal plane X resolution | 9,102.2222222222 |
Focal plane Y resolution | 9,088.7573964497 |
Focal plane resolution unit | inches |
Sensing method | One-chip color area sensor |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Scene capture type | Standard |