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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
Leonhard Euler
Leonhard Euler (1707–1783) was a Swiss mathematician and physicist. He developed important concepts and proved mathematical theorems in fields as diverse as calculus, number theory and topology. Euler introduced much of the modern mathematical terminology and notation, particularly for mathematical analysis, such as the notion of a mathematical function. He is also renowned for his work in mechanics, optics and astronomy. Euler is considered to be the preeminent mathematician of the 18th century and one of the greatest of all time. According to Guinness World Records, he is also the most prolific; his collected works fill 60 to 80 quarto volumes. Euler was featured on the sixth series of the Swiss ten-franc banknote and on numerous Swiss, German and Russian stamps. The asteroid 2002 Euler was named in his honor. This portrait of Euler was created by the Swiss painter Jakob Emanuel Handmann in 1753 and is now in the collection of the Kunstmuseum Basel.Painting credit: Jakob Emanuel Handmann; restored by Bammesk



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)