User talk:Ahmed.taha.mail

Wikipedia:Reference desk/Archives/Science/2010 November 6
I see you edited Reference desk/Archives/Science/2010 November 6 to remove some material. The Reference desk is a forum for people to ask questions and hopefully get answers, and the archives contain past discussions preserved for the historical record. As such, they should not be changed now. Squinge (talk) 10:50, 3 January 2015 (UTC)