This football field, home of the Arizona Cardinals, is one amazing engineering feat. The exterior of the stadium is inspired by the barrel cactus and offers alternating vertical slots with smooth panels, however the truly amazing features of the stadium are not aesthetic but are related to function.
First, the stadium has a retractable roof that can retract in approximately 12 mins.
Second, for anyone who has played on artificial turf, especially the 1st generation turf, knows the negative impact on the body. The Cardinal stadium engineers designed the stadium to use real grass. The challenge was, how do you grow real grass in a covered stadium? The engineers decided to build a massive platform on which they would plant the grass. The platform was built with wheels on railroad tracks thus allowing them to move the grass outside the stadium to grow and then move it in for game time.
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