Spiritualism and Suspension Bridges: John Roebling and a Biographer's Sympathy for the Weird 19th Century
by Richard Haw
A biographer of Brooklyn Bridge designer John Roebling expected to write about a genius. He also ended up writing about a complete weirdo, and how one man could be both.
SOURCE: The New Scientist
Chinese engineers used an ice road to drag stones to build the Forbidden City.