Redigerer Ibn Yunus (avsnitt)

===Pendulum===
Nyere encyklopaedier<ref>{{cite book
  | last = Good
  | first = Gregory
  | title = Sciences of the Earth: An Encyclopedia of Events, People, and Phenomena
  | publisher = Routledge
  | date = 1998
  | location =
  | pages = 394
  | url = https://books.google.com/books?id=vdqXVddh0hUC&printsec=frontcover
  | doi =
  | isbn = 0-8153-0062-X}}<br/>{{cite encyclopedia
  | title = Pendulum
  | encyclopedia = Encyclopedia Americana
  | volume = 21
  | pages = 502
  | publisher = The Americana Corp.
  | url =https://books.google.com/books?id=icRWAAAAMAAJ&dq=%22Ibn+Yunis%22+pendulum
  | date = 1967
  | accessdate = 2009-02-20}}<br/>{{cite book
  | last = Baker
  | first = Cyril Clarence Thomas
  | title = Dictionary of Mathematics
  | publisher = G. Newnes
  | date = 1961
  | location =
  | pages = 176
  | url = https://books.google.com/books?id=RlkYAAAAMAAJ&q=Ibn+Yunis+pendulum&dq=Ibn+Yunis+pendulum
  | doi =
  | isbn = }}</ref> and popular accounts<ref>{{cite book
  | last = Newton
  | first = Roger G.
  | title = Galileo's Pendulum: From the Rhythm of Time to the Making of Matter
  | publisher = Harvard University Press
  | date = 2004
  | location = US
  | pages = 52
  | url = https://books.google.com/books?id=LWqwNY3qUfwC&pg=PA52
  | doi =
  | isbn =  0-674-01331-X}}</ref> har gjentatt påstanden at Ibn Yunus benyttet et [[pendulum]] for tidberegninger, til tross for at det lenge har vært kjent at dette skyldes en feilaktighet fra 1684 av den saviliske professor i astronomi ved Oxford og arabisteb [[Edward Bernard]].<ref>{{cite journal
 | last=King
 | first=D. A.
 | title=Ibn Yunus and the pendulum: a history of errors
 | journal=Archives Internationales d'Histoire des Sciences
 | date=1979
 | volume=29
 | issue=104
 | pages=35–52 }}<br/>
{{cite journal
 |last       = Hall
 |first      = Bert S.
 |title      = The scholastic pendulum
 |journal    = Annals of Science
 |volume     = 35
 |issue      = 5
 |pages      = 441–462
 |publisher  = Taylor & Francis
 |date       = September 1978
 |url        = http://www.informaworld.com/smpp/content~db=all?content=10.1080/00033797800200371
 |issn       = 0003-3790
 |doi        = 10.1080/00033797800200371
 |accessdate = 2010-04-22
}}{{død lenke|dato=januar 2018 |bot=InternetArchiveBot }}<br/>
{{cite web
 |author1    = O'Connor, J. J.
 |author2    = Robertson, E. F.
 |date       = November 1999
 |url        = http://www-groups.dcs.st-and.ac.uk/~history/Biographies/Yunus.html
 |title      = Abu'l-Hasan Ali ibn Abd al-Rahman ibn Yunus
 |publisher  = University of St Andrews
 |accessdate = 2007-05-29
}}</ref>