File:Brunton Calciner - geograph.org.uk - 588921.jpg
Brunton_Calciner_-_geograph.org.uk_-_588921.jpg (640 × 359 pixels, file size: 61 KB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionBrunton Calciner - geograph.org.uk - 588921.jpg |
English: Brunton Calciner (Chimney associated with the Brunton Calciner on the Wheal Busy site)
588912 : Previous -- (2 of 6) -- Next : 588925 These remains can be view viewed from 588873. The brickwork in the near, right foreground is part of the flue (leading to the chimney ahead) in which the arsenic was trapped. On this site the flue was over 50metres long. William Brunton patented his 'Brunton Calciner' in 1829 and greatly enhanced the speed at which arsenic (an impurity) could be removed from ore. Where the arsenic contamination was high it became economic to recover the arsenic as a by-product. For an explanation of the Brunton Calciner visit this page from Chycor Cornwall: http://www.chycor.co.uk/tourism/tolgus/page5.htm For more information view this PDF (4.28mb) from Cornwall County Council, http://212.104.147.54/media/pdf/0/0/CCC_1.pdf |
Date | |
Source | From geograph.org.uk |
Author | Alan Walker |
Attribution (required by the license) InfoField | Alan Walker / Brunton Calciner / |
InfoField | Alan Walker / Brunton Calciner |
Camera location | 50° 15′ 14″ N, 5° 10′ 46″ W | View this and other nearby images on: OpenStreetMap | 50.253840; -5.179400 |
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Object location | 50° 15′ 13″ N, 5° 10′ 48″ W | View this and other nearby images on: OpenStreetMap | 50.253730; -5.180100 |
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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 Alan Walker and is licensed for reuse under the Creative Commons Attribution-ShareAlike 2.0 license.
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 13:18, 6 February 2011 | 640 × 359 (61 KB) | GeographBot (talk | contribs) | == {{int:filedesc}} == {{Information |description={{en|1=Brunton Calciner (Chimney associated with the Brunton Calciner on the Wheal Busy site) 588912 : Previous -- (2 of 6) -- Next : 588925 These remains can be view viewed from 588873. T |
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Metadata
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Camera manufacturer | Canon |
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Camera model | Canon EOS 30D |
Exposure time | 1/160 sec (0.00625) |
F-number | f/9 |
ISO speed rating | 250 |
Date and time of data generation | 14:04, 15 July 2007 |
Lens focal length | 24 mm |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
File change date and time | 14:04, 15 July 2007 |
Y and C positioning | Co-sited |
Exposure Program | Normal program |
Exif version | 2.21 |
Date and time of digitizing | 14:04, 15 July 2007 |
APEX shutter speed | 7.3219299316406 |
APEX aperture | 6.33984375 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
Color space | sRGB |
Focal plane X resolution | 3,959.3220338983 |
Focal plane Y resolution | 3,959.3220338983 |
Focal plane resolution unit | inches |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Scene capture type | Standard |