Sydney Opera House: Vaulted roofs took 6 years, much math to design

02/5/2013 | InsideScience.org

The cast concrete "sails" that made the Sydney Opera House in Australia an icon were constructed of "1,498 standard rib segments of 12 different types and another 280 nonstandard segments .. each 15 feet long." How the architect and engineers arrived at the best way to construct them was an exercise in creativity, mathematics and problem solving. Alexander Hahn, a professor of mathematics at the University of Notre Dame in Indiana, explains the process.

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