Article
Editorial
Careers in mathematics: A set of three posters from Plus
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Article
Outer space: Is this a record?
Are records predictable in any way?
Puzzle
Which switch?
Save yourself a trip up the stairs with our Plus puzzle!
Article
Thomas Bayes & Mr Zootpooper
The three door problem has become a staple mathematical mindbender, but even if you know the answer, do you really understand it? Phil Wilson lets his imagination run riot in this intergalactic application of Bayes' Theorem.
Article
A current problem
Frances Elwell looks at the eddies and currents, from the pungent problem of sewage outflow to the search for bodies of people who have fallen into rivers, explaining that fluid mechanics lies behind it all.
Article
Code-breakers, doughnuts, and violins
Regular Plus contributor Lewis Dartnell reports on the scramble for million-dollar prizes that made mathematical headlines at the BA Festival of Science in September 2004.
Article
Curious quaternions
Mathematician and physicist John Baez declares himself fascinated by exceptions in mathematics. This interest has led him to study the octonions, and, through them, to find out more about the origins of complex numbers and quaternions. In the first of two articles, he talks about connections between algebra and geometry, and the importance of lateral thinking in mathematics.