Blurt!Commonplace Book

“The sharp turns and the difference in floor levels at the junction prove conclusively that the tunnel was excavated from both ends. At the junction itself, the floor level drops 60 centimeters from north to south, a discrepancy of less than one-eighth of a percent of the distance excavated.” (Tom M. Apostol, “The Tunnel of Samos”)

Sunday, February 23, 2020, 8:29:34pm PDT