This is episode one of a three-part series. You can listen to part two here and part three here. [CLIP: Wind howls] Rachel Feltman: When Tom Crawford climbed Mount Kilimanjaro and stood 5,895 meters ...
Pi (Ï€) is probably the most famous number in mathematics. Not only have experts studied it extensively, but it also fascinates amateurs: books, films and songs have been dedicated to the number. Part ...
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