He also collaborated with Wren on the design of St Paul's Cathedral; Hooke established The perfect shape of an arch is undoubtedly an inverted catenary and thence that a round number of this kind of arches will make an ideal condition to the cathedral's dome.[109] این صفحه آخرین‌بار در ۲۸ مهٔ ۲۰۲۴ ساعت ۱۵:۵۷ �