There are 185 million daily crossings on nearly 56,000 structurally deficient US bridges, according to the American Road and Transportation Builders Association.
Today, all that remains of the Ford factory in St. Paul, Minnesota, is an expansive tract of bare land in the middle of the middle-class Highland Park neighborhood, where a lone smokestack juts up from the old steam plant.
In 1902, Sergey Prokudin-Gorsky learned the method of shooting three negatives (color separations) and then projecting them in registration through filters to produce projected color images. He didn’t invent the process, although I dare say he may have fine-tuned it.