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COPYRIGHT 2003 M.C.M. Publishing Ltd.
UNTIL quite recently, if you wanted to know how an idea or a design would work out, there was only one option. You had to make it and try it out. If you could not make the real thing, you had to make the best approximation you could manage or afford. Then you had to try to allow for the inaccuracies in your model. You could play safe but if you worked at the cutting edge of design, you risked catastrophe.
No one worked closer to the edge than the cathedral builders. Sadly their designs could and did fall down. Some of what we see today was created by designers who learned from those disastrous experiences. Only the greatest or the bravest designers could transcend these limitations. Brunel's railway bridge at Maidenhead has the flattest brick arches in the world. Even today it looks inconceivable that it can stand and...
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