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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Upload log
- 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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image/jpeg
bd200f88bbe4dc8f9429707042a77236343965ec
604,053 byte
1,024 pixel
1,400 pixel
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:19, 6 June 2017 | 1,400 × 1,024 (590 KB) | wikimediacommons>Gnash | Optimized file size. |
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Metadata
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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 |
Colour space | Uncalibrated |
Image width | 1,400 px |
Image height | 1,024 px |
Date and time of digitising | 03:57, 10 August 2007 |
Date metadata was last modified | 02:49, 20 October 2009 |
IIM version | 2 |