Thought HN folks would enjoy this engineering marvel, a helix staircase built in the 1800s with no nails or central support column, under mysterious circumstanc

Thought HN folks would enjoy this engineering marvel, a helix staircase built in the 1800s with no nails or central support column, under mysterious circumstances. * A short piece on the engineering: https://nanoten.com/travel/Santa-Fe/ https://nanoten.com/travel/Santa-Fe/ * An academic paper on the underlying physics: "Origin of Unusually High Rigidity in Selected Helical Coil Structures" (2018). https://arxiv.org/pdf/1706.03288.pdf https://arxiv.org/pdf/1706.03288.pdf * An examination of the "less miraculous" pieces of the legend: https://cdn.centerforinquiry.org/wp-content/uploads/sites/29/1998/11/22164909/p24.pdf https://cdn.centerforinquiry.org/wp-content/uploads/sites/29...