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In July 1995 more than 700 people died in a Chicago heat wave, and the neighbourhoods where they died are not the hottest places in the city. Not by day, anyway. This episode joins satellite thermal imagery with 1995 business records and today's map of places to gather, and finds that neither map on its own predicts where the deaths clustered. The overlap does. Four lessons in reading maps: building a proxy out of independent sources, why the available measurement is not the right one, how two weak signals can beat one strong one, and how to test whether a blank space on your map is real.
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Think of somewhere you know that is not on the map. A shop that opened last year, a path everyone in your neighbourhood uses. You know it is there and the map says nothing is. Every blank space on every map is one of two things: nothing is there, or nobody has told the map yet, and a map draws thos…
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면책 조항: 이 페이지에 포함된 팟캐스트와 작품은 Brian Bergstrom에서 가져온 것입니다. 이 팟캐스트는 소유자의 재산이며 Listen Notes, Inc.와 제휴하거나 보증하지 않습니다.
