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The bells, the bells ...

The bells, the bells ...
By Mark Mason on 10-04-12 18:01. Comments (0)
Had a splendid time on Sunday's Central Line walk. A great group of people, who made the journey through part of the red line's City section a real pleasure to lead. And as with all the best walks the flow of information wasn't in just one direction ...

A Walk the Lines walk

A Walk the Lines walk
By Mark Mason on 08-03-12 12:01. Comments (2)
Fancy a stroll along a Tube line? At street level, that is. The idea comes from my book ‘Walk the Lines', in which I walked the whole London Underground system overground. Some very kind people have told me how much they liked the book, and one or two have even responded favourably to the notion of me leading a stroll along a short section of one of the lines. So here goes - we're off and walking.

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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.