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Why the Poohsticks formula is wrong

The equation is just a collection of sciency-looking symbols

By Philip Ball  

Pippa Wheeler dressed as Winnie the Pooh and children's TV presenter Philippa Forrester prepare to play Pooh Sticks at the 26th World Pooh Sticks Championship in Oxfordshire ©John Stillwell/PA Archive/PA Images

We do love a good equation, don’t we? It might be culturally acceptable, even fashionable, as Prospect has recently pointed out, to say that we are utterly dunder-headed at maths,…

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