Silly Questions Amnesty Jun 7, 2013 Want a silly answer? You know what to do. A selection of other posts Aug 1, 2018 Ask Uncle Colin: About A Tetrahedron Apr 28, 2014 A student asks: Why does variance do THAT? Sep 26, 2013 Wrong, But Useful: Episode 7 Jan 6, 2012 Free-for-all Friday subscribe via RSS