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Art Holder

Steven Johnson: How the "ghost map" helped end a killer disease | Video on TED.com - 2 views

www.ted.com/...hnson_tours_the_ghost_map.html

Chapter 1 disease cholera map water John Snow

shared by Art Holder on 15 Oct 13 - Cached
  • Art Holder on 15 Oct 13
     
    10 minute Ted talk on John Snow and cholera in mid-19th century London.
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