Faili:CGKilogram.jpg

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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…

  1. the IPK is stored in a vault nearly all the time,
  2. there is no general public access to the BIPM (and certainly none to the vault),
  3. and working copies of the IPK are used at the BIPM for routine calibrations for years on-end.
Tarehe Uploaded August 10, 2007
Chanzo Originally uploaded to English Wikipedia as CGKilogram.jpg
Mwandishi en:User:Greg L
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(Kutumia faili tena)
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sifa shiriki sawa 		Faili hii imeidhinishwa chini ya Creative Commons Attribution- Attribution-Share Alike 3.0 Unported leseni. Subject to disclaimers.
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shiriki sawa – Ukichanganya, kubadilisha, au kujenga juu ya nyenzo, lazima usambaze michango yako chini ya same or compatible license kama ya awali.

This licensing tag was added to this file as part of the GFDL licensing update.
GNU head Ruhusa inakubalika kunakili, kusambaza na/au kurekebisha chini ya matakwa ya GNU Free Documentation License, Toleo 1.2 au toleo lolote lile la baadaye ambalo litachapishwa na Free Software Foundation; lisilo na Sehemu Tofauti, lisilo na Maandishi-Kava-Kwa-Mbele, na lisilo na Maandishi-Kava-Kwa -Nyuma. Nakala ya hatimiliki inajumlishwa kwenye sehemu ilioitwa GNU Free Documentation License. Subject to disclaimers.

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  • 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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Historia ya faili

Bonyeza tarehe/saa kuona faili kama ilivyoonekana wakati huo.

Tarehe/SaaPicha ndogoVipimoMtumiajiMaelezo
sasa hivi21:49, 5 Juni 2017Picha ndogo ya toleo la 21:49, 5 Juni 20171,400 × 1,024 (590 KB)GnashOptimized file size.
16:53, 20 Oktoba 2009Picha ndogo ya toleo la 16:53, 20 Oktoba 20091,400 × 1,024 (608 KB)Greg A LPicture carefully tweaked in contrast, brightness, and color balance to better work with monitors that use PC gamma
23:31, 17 Oktoba 2009Picha ndogo ya toleo la 23:31, 17 Oktoba 20091,400 × 1,024 (557 KB)Greg A LChange 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 Oktoba 2009Picha ndogo ya toleo la 22:59, 17 Oktoba 2009800 × 585 (26 KB)Orion 8more light
14:32, 11 Agosti 2007Picha ndogo ya toleo la 14:32, 11 Agosti 20071,400 × 1,024 (523 KB)EPO{{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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