Artificio de Juanelo(en.wikipedia.org)
86 points by benbreen | 10 comments
86 points by benbreen | 10 comments
80 points by YeGoblynQueenne | 8 comments
246 points by djoldman | 55 comments
Wikipedia article on Cleo, the pseudonym of Vladimir Reshetnikov, known for posting precise answers to hard integrals on Math Stack Exchange without showing work.