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Steve Humble examines how a cathedral like Durham was designed by following the master mason's use of practical geometry, symmetry, pattern and proportions. Here the challenge is to measure one of ...
Steve Humble examines how a cathedral like Durham was designed by following the master mason's use of practical geometry, symmetry, pattern and proportions. Here the challenge is to measure one of Durham Cathedral's towering columns, using rope, a metre rule and similar triangles.