John C. Baez

http://en.wikipedia.org/wiki/John_Baez

JOHN BAEZ is a mathematical physicist working on quantum gravity using the techniques of "higher-dimensional algebra". A professor of mathematics at the University of California, Riverside, he enjoys answering physics questions on the usenet newsgroup sci.physics.research, and also writes a regular column entitled "This Week's Finds in Mathematical Physics". (The Third Culture: http://www.edge.org/3rd_culture/bios/... )