What is William de Wiveleslie Abney?
[[File:Captain W. de W. Abney. C.B, R.E, F.R.S. President of the Camera Club. (8385712527) - crop.jpg|thumb|Captain W. de W. Abney, C.B., R.E., F.R.S.]] '''William de Wiveleslie Abney''' (24 July 1843 – 3 December 1920) was an [[England|English]] [[astronomer]], [[chemist]], and [[photographer]]. Abney was a member of many scientific organizations.<ref>{{cite web |url=http://www.derby.gov.uk/LeisureCulture/ParksRecreation/Rykneldrec.htm |title=Rykneld Recreational Ground |website=www.derby.gov.uk |access-date=13 January 2022 |archive-url=https://web.archive.org/web/20110204154142/http://www.derby.gov.uk/LeisureCulture/ParksRecreation/Rykneldrec.htm |archive-date=4 February 2011 |url-status=dead}}</ref> He was best known for his discovering and measuring the effect of adding white to a [[hue]], in 1910. The effect is generally known as the [[Abney effect]]. For example, adding white to red makes it slightly bluish (bluish red is known as pink), and adding white to yellowish green hues makes them less yellowish and thus greener.<ref>[[Chambers Biographical Dictionary]], {{ISBN|0-550-18022-2}}, page 5</ref> ==References== {{reflist}} {{bio-stub}} {{DEFAULTSORT:Abney, William de Wiveleslie}} [[Category:1843 births]] [[Category:1920 deaths]] [[Category:English chemists]] [[Category:English astronomers]] [[Category:English photographers]]