Giving a 10-minute presentation with a single slide: Steven Johnson on the Ghost Map

Having just returned from a trip to London, my interest in the story of Dr. John Snow and the terrible 1854 cholera outbreak in London was rekindled. It's an amazing story. (While in London I kicked around the same streets where the outbreak occurred some 156 years ago in Soho.) The presentation below is a good short talk by Steven Johnston who wrote an entire book on the case called Ghost Map: The Story of London's Most Terrifying Epidemic—and How It Changed Science, Cities, and the...