In 1929 and 1930, Johns Hopkins Medical School surgeon Warfield Firor carried out a series of experiments to determine how long blood could flow between animals with joined circulatory systems. Without using any anti-coagulants, Firor attempted to es
In 1842, Anna Atkins, a 43-year-old amateur botanist from Kent, England, began experimenting with a brand-new photographic process called cyanotype or blue-print. Atkins arranged algae specimens collected from around the British Isles on a sheet of g
In July 1587, a British colonist named John White accompanied 117 people to settle a small island sheltered within the barrier islands of what would become North Carolina’s Outer Banks. When conditions proved harsher than anticipated, White agreed to
William Helfand began buying medically themed collectibles in the 1950s when he started working for Merck & Co. Over his 30-year career with the company, Helfand amassed thousands of posters and other old marketing paraphernalia, which were commi
For more than 40 years, German gynecologist and legendary science writer Fritz Kahn (1888-1968) captured the imagination of an international audience with hundreds of wildly inventive illustrations and more than a dozen popular science books. The fol