John Gill is the father of modern bouldering. In the early 1960s, he took his gymnastics training in to the field and pioneered the use of chalk and dynamic moves in climbing. In 1961, he climbed the 30 foot height of The Thimble, widely considered to be the first 5.12 ascent in the world, and did so without a rope.

A devotee of body weight exercises, he could perform a one-arm front lever and several one-finger pull-ups. During his time as a gymnast he engaged in competitive rope climbing (formerly an Olympic sport), which is making a bit of a comeback in the Czech Republic (if you think it looks too easy, try it with one arm). [more inside]
posted by 0xFCAF on Dec 12, 2008 - 16 comments

More than fifty selected articles from The Princeton Companion of Mathematics (username: Guest, password: PCM) — a thematically-organized compendium of mathematics and mathematicians from Fields Medal-winner Tim Gowers. [via, previously]
posted by Blazecock Pileon on Sep 27, 2007 - 8 comments

The Narrow Road : in which a professional mathematician guides you through pure mathematics (and touches on tangential issues).
posted by phrontist on May 1, 2007 - 10 comments

The scientist whom history forgot: Emilie du Châtelet. Lover of Voltaire, genius without a beard, female scientist, mathematician and philosopher.
posted by MetaMonkey on Aug 3, 2006 - 10 comments