Maths
2 breaks
Patterns, chance and the numbers hiding in everyday things.
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How dropping needles on a floor reveals the number π: Buffon's needle
Toss a match onto a plank floor and ask: does it touch a crack? Do it thousands of times and the fraction that do will quietly spell out π, though no circle is…
Why 23 people are enough for two to share a birthday
Put 23 people in a room and there's a better-than-even chance that two of them share a birthday. That sounds wrong, because 23 is tiny next to 365. The catch…