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Stalagmites are isolated columns of calcium carbonate growing on a cave floor; theirgrowth is driven by the constant dripping of supersaturated solutions from the roofof the cave. In this paper, we derive a closed-form expression for the shape of asteadily growing stalagmite. Our analysis gives rise ...

The reconstruction of Berlin, after the massive destruction it suffered in World War II, was complicated in two fundamental ways. First was the question of historical continuity. On the one hand, there was a desire to reconstruct: to repair a damaged but extant city or, more broadly, to continue its ...