Brighton is the hub for European Chemtrails!
Del Fenner Because of Boxing Day Sep 5, 2011 1,438 An Away Terrace Dec 6, 2012 #842 Del Fenner said: Been known since Eratosthenes (276–194 BC) calculated the diameter of the earth from the length of shadows cast at different latitudes. Click to expand... BadFish said: Wasn't damn close to working out the size of the earth? Click to expand... His calculation of the circumference was to within 2% of modern measurements. And he managed it without leaving Egypt!
Del Fenner said: Been known since Eratosthenes (276–194 BC) calculated the diameter of the earth from the length of shadows cast at different latitudes. Click to expand... BadFish said: Wasn't damn close to working out the size of the earth? Click to expand... His calculation of the circumference was to within 2% of modern measurements. And he managed it without leaving Egypt!