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Sam is a maths student at Durham University where he hosts
Chalkboard Ultra podcast and spends too much time thinking about spinors. Outside of maths, Sam runs one of the university’s jazz bands.

Chalkdust dissertation prize
Calling all final-year students!
The big argument: What’s the best way to end a proof?
QED or $\square$?
Significant figures: Gladys West
Madeleine Hall looks at one of the minds behind GPS
Correction: Who is the best England manager?
Paddy provides a much anticipated update to the most important use of statistical analysis in the last two years
Christmas conundrum #3
Try our nonograms! And remember, not all puzzles have a unique solution...
Origami tesseract
Folding origami, building networks, making projections and multiple dimensions!