congruence
Bill Casselman writes about the intriguing amateur mathematician Henry Perigal, who took his elegant proof of Pythagoras' Theorem literally to his grave - by having it carved on his tombstone.
Barry Phipps tells Plus how he bridges the gap between the arts and sciences as an exhibition curator.
Learn about the maths behind architecture
(03/07/2008)
Have you got as many friends as you think?
(01/07/2008)
Well educated aliens
(06/06/2008)
A generation of lost mathematicians