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Life in squares: the addictive and adventurous cycling challenge you've never heard of
Using GPS to tick off squares on a map has transformed exploring into an addictive, area-collecting adventure. James ...
Quanta Magazine22h
The Largest Sofa You Can Move Around a Corner
A new proof reveals the answer to the decades-old “moving sofa” problem. It highlights how even the simplest optimization problems can have counterintuitive answers.