<![CDATA[Discussion on Fingernails down a chalkboard: why it hurts our ears ]]> en-us 2013-05-22T15:28:30-07:00 <![CDATA[Knowing the source doesn't matter]]> Tue, 01 Nov 2011 08:31:40 -0700 <![CDATA[Other annoying sounds]]> Mon, 31 Oct 2011 15:36:33 -0700