Why does the Shanghai World Financial Center have a large trapezoidal opening at its peak?
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The distinctive trapezoidal opening at the top of the Shanghai World Financial Center is not just for looks; it significantly reduces wind pressure on the structure. Originally, the design called for a circular opening, but it was changed to avoid political controversy over its resemblance to the Japanese rising sun. Photo: Bechology, Wikimedia Commons, CC BY 4.0.
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Source: Wikipedia (CC BY-SA)
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