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Clostridium perfringens, the disagreeable little organism that causes gangrene, can reproduce in nine minutes. At such a rate, a single bacterium could theoretically produce more offspring in two days than there are protons in the universe.

A Short History of Nearly Everything

Bill Bryson

Google and Facebook, which dominate the mobile ad market, also lead in location-based advertising. Both companies collect the data from their own apps. They say they don’t sell it but keep it for themselves to personalize their services, sell targeted ads across the internet and track whether the ads lead to sales at brick-and-mortar stores.

Your Apps Know Where You Were Last Night, and They’re Not Keeping It Secret

nytimes.com

Without Haber–Bosch, the earth could sustain, at present rates of consumption, only about 2.4 billion people.

How to Hide an Empire

Daniel Immerwahr

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