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Archives week 31 of 2013

Aug. 5, 2013 - Aug. 11, 2013

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In a large metropolitan area such as NYC, the public transportation system is a vital part of the city's day-to-day operation. But transportation systems do not work for free: each of the millions of passengers they serve must pay for their rides. Let's take a look at their underlying payment systems.

The simplest ...

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