Tuesday, November 27, 2007

'Ghost Map'



Author Steven Johnson takes us on a 10-minute tour of his 2006 book The Ghost Map, telling the story of a cholera outbreak in 1854 London, and the famous map that physician John Snow made of the disease's path -- a map that not only convinced the world that cholera was a waterborne illness, but ultimately brought about profound changes in science, cities and modern society.

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