Robert Le Ricolais (La Roche-sur-Yon (Vendée) 30 October 1894 – Neuilly-sur-Seine, 4 June 1977),[1][2] was a French engineer considered one of the creators of the spatial structure principle, based on mathematical logic and observation of nature.[3] He studied and worked in France from 1912 to 1951 and taught at the University of Pennsylvania from 1954 to 1975.[4]
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