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// Own up, which silly sod designed the circle, and c0cked it up. //
..you've got it it docspock - you've just expressed my original question better than I did.
Squarebear, you're just not getting into the spirit of it.
I also heard on the radio that recent research suggests that constants might not actually be constants depending on where you are in the universe. e.g speed of light, gravity, whatever could actually change. And I was wondering how that might work for mathematical constants.