File:PrecisionOptics Achim2.jpg

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English: Silicon sphere used in the Avogadro project being inspected by Achim Leistner, master optician at the Australian Centre for Precision Optics (part of the CSIRO). The sphere, which has a diameter of about 93.6 mm, was cut from a single crystal of 99.9995% pure silicon-28 and has a mass of 1 kg. The number of atoms in the sphere has been calculated using X-ray crystallography with an uncertainty of less than 2×10-8. It is round to within one part in two million.
Date
Source http://www.scienceimage.csiro.au/mediarelease/mr07-108.html
Author CSIRO ([Australian] Commonwealth Scientific and Industrial Research Organisation)
Camera location33° 46′ 58.8″ S, 151° 09′ 03.6″ E Kartographer map based on OpenStreetMap.View this and other nearby images on: OpenStreetMapinfo

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The page contining the image links to this page via the words "Terms and Conditions". The linked page contains the words "scienceimage is an image library specialising in science and nature images. It is presented by CSIRO, Australia's major science research organisation. All images are free to download under a Creative Commons license"

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This image has been assessed under the valued image criteria and is considered the most valued image on Commons within the scope: Silicon sphere from the Avogadro Project. You can see its nomination here.

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33°46'59"S, 151°9'4"E

13 June 2007

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current19:59, 14 March 2016Thumbnail for version as of 19:59, 14 March 20163,000 × 2,334 (8.66 MB)MartinvlUser created page with UploadWizard

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