The Catenary Arch: Above and Below

In the late 17th century, the discovery for creating the strongest form of arch was realized.  Robert Hooke had stated he found “the true mathematical and mechanical form of all manner of arches for building.”  Initially encoded by means similar to that of an anagram (abcccddeeeeefggiiiiiiii-ilmmmmnnnnnooprrsssttttttuuuuuuuux), Hooke’s studies would later …