BI. The Shape of the Universe
Jeff Weeks, author of “The Shape of Space”, tells us about the hypersphere, the Poincaré conjecture and the topology of the universe!
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BH. The Poincaré Conjecture
Jeff Weeks, author of “The Shape of Space”, discusses the hypersphere and the famous Poincaré Conjecture!
BG. Bamboopalooza!
Join Chaim and Kyle at Bamboopalooza 3! Octahedral pencil holders, giant 12 pointed bamboo stars, pig lighters and other mathematical oddments were enjoyed by all! Read the rest of this entry »
BA. The Ring is Exchanged
Peter Winkler answers his puzzle set in the Land of Kleptomaniacs, and we chat about Martin Gardner. We'll pose another puzzle next week!
AZ. Another puzzle from Peter Winkler
We answer last week's puzzle and Peter Winkler asks how to send a ring through the land of the kleptomaniacs.
AV. Dennis Shasha Answers
Dennis Shasha, author of The Puzzler’s Elusion explains how his finger multiplication works!
AU. Dennis Shasha asks about Polish Multiplication
Dennis Shasha, puzzle columnist for Scientific American, asks about a curious way to multiply numbers on your fingers.
AT. Peter Winkler Answers
Peter Winkler answers. Another puzzle next week!
AS. A Puzzle From Peter Winkler
Peter Winkler, author of “Mathematical Puzzles: A Connoisseur's Collection”, asks how many coins are needed to cover a table.
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