As the strings emerge on the right side of the head, they become thinner. A CT scan does more. In the late 1960s, Godfrey Hounsfield, a British engineer, had a bold idea: Fire thousands of beams ...

From financial charts to maps of epidemics, a dazzling new exhibition at the Fondazione Prada shows how diagrams have shaped history. ByJonathon Keats, Contributor. Forbes contributors publish ...