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Thread: St. Louis Gateway Arch construction - photos

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  1. Mar 15, 2020, 09:23 AM #9
    mklotz
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    Quote Originally Posted by Drew1966 View Post
    It looks like the width at the base matches the height. Like a y=x^2 parabola up to y=4.
    It's an inverted weighted catenary - basically a hyperbolic cosine shape. It's height and width are indeed the same.



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