What's Under Your Feet in New York City?

A tour of the subsurface in NYC Errata: At 8:00, winding are showing a step-up transformer and should be swapped. The underground of New York is almost a city within a city. We kind of get used to having all these utilities and services that it’s easy to forget the physical space they all take up...

23 min - How Things Work - Practical Engineering

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