http://spreadsheets.google.com/feeds/list/pjGlYH-8AK8ffDa6o2bYlXg/od6/public/basic/ev8pv2009-10-27T13:35:43.986Zid: 61, url_2: http://www.ted.com/talks/view/id/61, speaker: Steven Johnson, name: A guided tour of the Ghost Map, shortsummary: Author Steven Johnson takes us on a 10-minute tour of <i>The Ghost Map</i>, his book about a cholera outbreak in 1854 London and the impact it had on science, cities and modern society., event: TEDSalon 2006, duration: 0:10:03, publishdate: 1/31/2007