SK > "Absolutely JW.."Thanks SK, but we must remember that there is more to this problem than appears at first sight.Bus lanes exist in a spacetime whose geometry, we now believe, may involve between 10 and 26 dimensions for a mathematically consistent description.As H. L. Mencken said: "Explanations exist; they have existed for all time; there is always a well-known solution to every human problem - neat, plausible, and wrong."
John Whitworth ● 2052d