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A canal runs through it
Colin Beveridge barges in and admires some curious railway bridges
Prize crossnumber, Issue 12
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How to make: a Möbius Surprise
Surprise yourself by making this thing
Top Ten: Mathematical celebration days
The definitive chart of the best dates
Music playlists, Facebook and Twitter
Here is a very exciting way to measure how similar is your music playlist between your friends, or how similar are your Facebook contacts.