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User:Straal

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Straal is a member of Mensa International.


Normally he doesn't add new pages, but tidies up or enhances existing ones he finds lying around...


You can help improve the articles listed below! This list updates frequently, so check back here for more tasks to try. (See Wikipedia:Maintenance or the Task Center for further information.)

Help counter systemic bias by creating new articles on important women.

Help improve popular pages, especially those of low quality.

Also work needed on :


Special pages (maintenance) Information
Broken redirects
Dead-end pages Dead-end pages
Dormant pages Forgotten articles
Double redirects Double redirects
Lonely pages Orphaned articles
Long pages
New pages New pages patrol
New pages feed Page curation
Protected pages Protection policy
Short pages
Uncategorized pages Categorization
Uncategorized categories
Uncategorized templates
Unused categories
Unused files (images)
Unused templates
Without interwiki links
Most interwiki links
Wanted pages
Most-wanted articles
See also: Maintenance departments
Baryte
Baryte is a mineral consisting of barium sulfate (BaSO4). Generally white or colorless, it is the main source of the element barium, an alkaline earth metal. It is found across the world and can be deposited through biogenic and hydrothermal processes or evaporation. Early records of baryte date to the 16th century, when a radiating form gained notoriety among alchemists for specimens found near Bologna, Italy. Carl Wilhelm Scheele determined that baryte contained a new element in 1774, but elemental barium was not isolated until 1808 by Humphry Davy, using electrolysis of molten barium salts. Modern uses of baryte include oil and gas drilling, oxygen and sulfur isotopic analysis, and radiometric dating. These crystals of baryte on a dolomite crystal matrix was found at Cerro Warihuyn in Miraflores District, Peru. This photograph was focus-stacked from 24 separate images.Photograph credit: Ivar Leidus



His contributions so far:

30 June 2010

14 July 2006

27 September 2005

17 September 2005

14 September 2005

8 September 2005

6 September 2005

2 September 2005

25 August 2005

24 August 2005

11 August 2005

25 May 2005

4 May 2005

9 April 2005

8 April 2005

7 April 2005

17 March 2005


Some signatures:
~~~|[[User_Talk:Straal|☺]] ~~~~~
Straal| 23:15, Jul 8, 2004 (UTC)

~~~
Straal

~~~~
Straal 23:15, Jul 8, 2004 (UTC)

~~~~~
23:15, Jul 8, 2004 (UTC)