Online "dot map" shows every U.S. and Canadian resident

01/29/2013 | CNN

MIT graduate student Brandon Martin-Anderson has created an online map plotting every single person counted in recent North American censuses as a single dot -- that's 341,817,095 dots in all. The map lacks any geographical markers such as roads or city names, but population density alone reveals interesting patterns, Martin-Anderson says. "All you have to do is throw 300 million points onto a page, and all these patterns pop out," he says.

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