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Horsing Around

Horsing Around
By Mark Mason on 01-12-15 11:05. Comments (1)
Tis the season to be merrily writing to Santa, the one time of year children are guaranteed to employ their best handwriting. Even though Mail Obsession features general British trivia (postcodes are just the device for splitting the country up), I still included a few gems of postal history - like this Edwardian boy's letter to the man in red ...

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Books


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Walks

Inspired by my book Walk the Lines: the London Underground - Overground, each of these trivia-packed walks uncovers London’s history by following a section of a Tube line ... at street level.
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Quizzes

Tailor made quizzes
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Podcasts

Aural delights from the world of trivia
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Content

Rubik's Cube

A Rubik’s cube has more combinations than light travels inches in a century. This is my favourite illustration of how a very small number of factors can produce an absurdly complicated situation. A silly little toy, with only three squares in each of its three dimensions. How can that get complicated? Well, as anyone who's ever tried to solve one just by guessing will tell you, it gets very complicated. The number of possible combinations is 43,252,003,274,489,856,000. Forget billions - that's 43 quintillion and change. (In fact the cube's manufacturers just said ‘billions' in their advertising, figuring that no one would know what a quintillion was. It's a billion billion.) The number of inches light travels in a century, meanwhile, is a mere 37,165,049,856,000,000,000. Or thereabouts.