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The top documents tagged [ns ns r ns]
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World 100m running record progression: men Swimmers Improved Much Faster Than Runners Men’s 400m run: 43.8 (1968) to 43.18 (2011) Men’s 100m swim: 52.2
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Maths and Sport John D Barrow. Why Do Tightrope Walkers Carry Long Poles ?
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Maths and Sport John D Barrow
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