Jump to content

File:Gallium crystals.jpg

From Meta, a Wikimedia project coordination wiki

Original file (1,024 × 768 pixels, file size: 208 KB, MIME type: image/jpeg)

This is a file from the Wikimedia Commons. The description on its description page there is copied below.

Wikimedia CommonsWikipedia

 With an aspect ratio of 4:3 or 5:4, this image is suitable as a computer wallpaper (see gallery).
 This formerly was a featured picture on the German language Wikipedia (Exzellente Bilder) and was considered one of the finest images. See its nomination here.

If you think this file should be featured on Wikimedia Commons as well, feel free to nominate it.
If you have an image of similar quality that can be published under a suitable copyright license, be sure to upload it, tag it, and nominate it.

Summary

Description
English: Crystals of 99.999% gallium.
Slovenščina: Kristaliziran galij.
Date 11 November 2004
Source Own work
Author en:user:foobar

Crystals of 99.999% gallium, grown and photographed by myself in February 2003. These particular crystals took about 45 minutes to grow, sitting in a plastic dish near a cool window.

The lumpiness on the surface of these crystals is caused mainly by me shifting the dish around to monitor the progression of the crystal growth. Crystals (of any material) need to be totally undisturbed in order to grow perfect, large, smooth facets. Each time I moved the liquid around, it interrupted the crystal growth. The "lumps" are actually tiny crystals that started growing on the larger facets, but got smoothed over due to the liquid motion.

If I had placed this in a vibration-damped sandbox (similar to a holography table) and not disturbed it, the crystals would have been even larger, more coherent, and more stunning ;)

1024x768 PNG (makes a nice desktop wallpaper) from: en:user:foobar

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.
w:en:Creative Commons
attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
  • share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
This licensing tag was added to this file as part of the GFDL licensing update.

Captions

Crystals of 99.999% gallium.

Elementer som er med i denne fil

depicts

gallium

inception

11 November 2004

File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeThumbnailDimensionsUserComment
current02:34, 16 July 2010Thumbnail for version as of 02:34, 16 July 20101,024 × 768 (208 KB)AiyizoGrabbed the bigger picture linked to off of the wayback machine.
20:10, 11 November 2004Thumbnail for version as of 20:10, 11 November 2004640 × 480 (51 KB)Greatpatton

Global file usage

The following other wikis use this file:

View more global usage of this file.

Retrieved from "https://meta.wikimedia.org/wiki/File:Gallium_crystals.jpg"