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Mats Vermeeren sketches a simple proof of Noether's first theorem
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We review the third of this year's nominees for the Book of the Year
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We review the fourth of this year's nominees for the Book of the Year
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Why do Christmas lights get tangled? And what's the perfect way to decorate a Christmas tree? Find the answers here.
Christmas conundrum #3
Try our nonograms! And remember, not all puzzles have a unique solution...
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Did you use meta-logic to solve the crossnumber?