File:CGKilogram.jpg
Original file (1,400 × 1,024 pixels, file size: 590 KB, MIME type: image/jpeg)
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DescriptionCGKilogram.jpg |
A computer-generated image of the International Prototype kilogram (IPK), which is made from an alloy of 90% platinum and 10% iridium (by weight) and machined into a right-circular cylinder (height = diameter) of 39.17 mm. The IPK is kept at the Bureau International des Poids et Mesures (International Bureau of Weights and Measures) in Sèvres on the outskirts of Paris. The geometry of this computer model was based on the actual specifications being used for experiments in new manufacturing techniques to produce new kilogram mass standards. Solid model and ray-traced image was created using Cobalt CAD software. This image was provided by the contributor because of the dearth of uncopyrighted photographs of the actual IPK. This is expected to be a chronic limitation given that…
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Date | Uploaded August 10, 2007 | ||||||||
Source | Originally uploaded to English Wikipedia as CGKilogram.jpg | ||||||||
Author | en:User:Greg L | ||||||||
Permission (Reusing this file) |
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[edit]- 19:00, August 10, 2007 . Greg L . 1400×1024 (535,748 bytes)
- 08:30, August 10, 2007 . Greg L . 1024×740 (128,856 bytes) (A computer-generated image of the international prototype of the kilogram, which is made from an alloy of 90% platinum and 10% iridium (by weight) and machined into a right-circular cylinder (height = diameter) of [[1 E-2 m|39 )
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 21:49, 5 June 2017 | 1,400 × 1,024 (590 KB) | Gnash (talk | contribs) | Optimized file size. | |
16:53, 20 October 2009 | 1,400 × 1,024 (608 KB) | Greg A L (talk | contribs) | Picture carefully tweaked in contrast, brightness, and color balance to better work with monitors that use PC gamma | ||
23:31, 17 October 2009 | 1,400 × 1,024 (557 KB) | Greg A L (talk | contribs) | Change from absolutely absurd, crap job of lightening by previous editor. To that editor: Create a NEW file and use that if you like. Do not change this one. | ||
22:59, 17 October 2009 | 800 × 585 (26 KB) | Orion 8 (talk | contribs) | more light | ||
14:32, 11 August 2007 | 1,400 × 1,024 (523 KB) | EPO (talk | contribs) | {{Information |Description=A computer-generated image of the '''International Prototype''' '''kilogram''' (IPK), which is made from an alloy of 90% platinum and 10% iridium (by weight) and machined into a right-circular cylinder (height = diameter) of 39. |
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Orientation | Normal |
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Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | Adobe Photoshop CS2 Macintosh |
File change date and time | 09:49, 20 October 2009 |
Color space | Uncalibrated |
Image width | 1,400 px |
Image height | 1,024 px |
Date and time of digitizing | 03:57, 10 August 2007 |
Date metadata was last modified | 02:49, 20 October 2009 |
IIM version | 2 |