High-Tech and Low Powers New York's Subway
Before the first New York City subway train took its historic ride in October 1904, engineers and electricians had to plan the inner workings of the new transit system. The infrastructure they designed 100 years ago has been upgraded with the arrival of new technologies. But it is still working pretty much as it was originally planned. Beth Fertig of member station WNYC reports on the complicated blend of old and new technology that moves thousands of riders around the city each day.
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