Home Personal Mathematics Teaching Articles Puzzles Links	Articles For Strange Horizons Strange Horizons is an online magazine of speculative fiction. I wrote a series of general interest mathematics articles which appeared in the magazine. These are a lot of fun, so go read them! The Fourth Dimension (Sep. 2002) (or, try the Portugese translation. Thanks, Marcelo!) Folding (Mar. 2002) Steganography: How to Send a Secret Message (Oct. 2001) The Biggest Numbers in the Universe (Apr. 2001) Habitrails and Asteroids: Topology From the Inside (Jan. 2001)
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