File:Archimedean drill (AM 2004.51.18-4).jpg
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Original file (8,688 × 5,792 pixels, file size: 7.73 MB, MIME type: image/jpeg)
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Summary
[edit]Archimedean drill ( ) | ||||||||||||||||||||||||
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Artist |
Unknown authorUnknown author |
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Title |
Archimedean drill |
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Object type | Classification: 96717 | |||||||||||||||||||||||
Description |
English: Small Archimedean drill, LH steel and brass drill; spiralling thread on central drill. Brass knob at top and brass attachment on drill. This small Archimedean type drill appears to rotate the wrong way, for on the downstroke it revolves anticlockwise, the opposite of most drills. But when used with an extremely small drill, any extra downwards pressure would probably break the drill. Therefore this tool turns the drill in the clockwise cutting direction of the upstroke, reducing the likelihood of breakage. |
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Date | Unknown date; 20th century; 06 May 2004; 02 Jun 2004 | |||||||||||||||||||||||
Dimensions |
length: 98mm |
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Collection |
institution QS:P195,Q758657 |
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Accession number |
2004.51.18 |
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Place of creation | Unknown | |||||||||||||||||||||||
Credit line | Collection of Auckland Museum Tamaki Paenga Hira, 2004.51.18 | |||||||||||||||||||||||
Source/Photographer | Photo | |||||||||||||||||||||||
Permission (Reusing this file) |
This image has been released as "CCBY" by Auckland Museum. For details refer to the Commons project page. | |||||||||||||||||||||||
Other versions |
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Licensing
[edit]This file is licensed under the Creative Commons Attribution 4.0 International license.
Attribution: Auckland Museum
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 18:41, 4 January 2018 | 8,688 × 5,792 (7.73 MB) | Fæ (talk | contribs) | Auckland Museum Page 231.52 Object #23151 2004.51.18 Image 4/5 http://api.aucklandmuseum.com/id/media/v/438472 |
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File usage on Commons
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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 | Canon |
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Camera model | Canon EOS 5DS R |
Exposure time | 1/100 sec (0.01) |
F-number | f/11 |
ISO speed rating | 100 |
Date and time of data generation | 15:46, 19 July 2016 |
Lens focal length | 100 mm |
User comments | 608582 |
Horizontal resolution | 240 dpi |
Vertical resolution | 240 dpi |
Software used | Adobe Photoshop Lightroom 6.6 (Windows) |
File change date and time | 16:14, 19 July 2016 |
Exposure Program | Manual |
Exif version | 2.3 |
Date and time of digitizing | 15:46, 19 July 2016 |
APEX shutter speed | 6.643856 |
APEX aperture | 6.918863 |
APEX exposure bias | 0 |
Maximum land aperture | 3 APEX (f/2.83) |
Metering mode | Center weighted average |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 00 |
DateTimeDigitized subseconds | 00 |
Color space | sRGB |
Focal plane X resolution | 2,413.3333435059 |
Focal plane Y resolution | 2,413.3333435059 |
Focal plane resolution unit | 3 |
Custom image processing | Normal process |
Exposure mode | Manual exposure |
White balance | Manual white balance |
Scene capture type | Standard |
Serial number of camera | 025021000042 |
Lens used | EF100mm f/2.8L Macro IS USM |
Date metadata was last modified | 04:14, 20 July 2016 |
Unique ID of original document | A068F5CE41B1EE4CF330A7B5850B00E1 |
Keywords |
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IIM version | 4 |