Image:Silicon sphere for Avogadro project.jpg

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Description
English: A 1-kg single-crystal silicon sphere for the Avogadro Project is shown above in the hands of Master Optician Achim Leistner at the Australian Centre for Precision Optics (ACPO), which is part of Australia's Commonwealth Scientific and Industrial Research Organisation (CSIRO).
ACPO's spheres are among the roundest man-made objects in the world. If one of their Ø 93.6 mm spheres, which had an out-of-roundness of 35 nm, was scaled to the size of the Earth, its ‘continents’ would gradually rise only 2.4 meters above sea level.
Source

Transferred from en.wikipedia; Transfer was stated to be made by User:Avraham.
(Original text : CSIRO)
Date

2008-01-11 (original upload date)
Author

Original uploader was Greg L at en.wikipedia
(Original text : Greg L)
Permission
(Reusing this image)

CC-BY-SA-3.0,2.5,2.0,1.0; Released under the GNU Free Documentation License.
(Original text : GNU Free Documentation License as detailed in an e-mail sent by the author to permissions-en AT wikimedia DOT org on Saturday, January 12, 2008 at 03:09 Zulu)

[edit] License information

The Commonwealth Scientific and Industrial Research Organisation of Australia, the copyright holder of this work, has published or hereby publishes it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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[edit] Original upload log

The original description page is/was here. All following user names refer to en.wikipedia.

  • 2008-01-11 22:28 Greg L 631×863×8 (462987 bytes) {{Information |Description=A 1-kg silicon sphere for the Avogadro Project in the hands of Master Optician Achim Leistner at the Australian Centre for Precision Optics (ACPO), which is part of Australia's Commonwealth Scientific and Industrial Research Org

File history

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Date/TimeDimensionsUserComment
current16:12, 7 February 2008631×863 (452 KB)File Upload Bot (Magnus Manske) ( {{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|A 1-kg single-crystal silicon sphere for the Avogadro Project is shown above in the hands of Master Optician Achim Leistner at the [http://www.acpo.csiro.)
The following pages on the English Wikipedia link to this file (pages on other projects are not listed):

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

Orientation Normal
Horizontal resolution 100 dpi
Vertical resolution 100 dpi
Software used Adobe Photoshop 7.0
File change date and time 11:09, 11 January 2008
Color space 65535