Showing results for "Underground" in Engineering

When Will Hunt was 16 years old, he discovered an abandoned tunnel that ran beneath his house in Providence, Rhode Island. His first tunnel trips inspired a lifelong fascination with exploring underground worlds, from the derelict subway stations and sewers of New York City to sacred caves, catacombs, tombs, bunkers and ancient underground cities in more than 20 countries around the world. 

In the nineteenth century, Manhattan's streets were so choked with pedestrians, horses, vehicles, and vendors that a trip from City Hall to Central Park could take hours. Alfred Beach had the perfect solution: build a giant pneumatic tube underneath Broadway from the Battery to Harlem. Air pressure would shoot passengers up and down the island in clean, quiet carriages. But Beach was up against the operators of the horse-drawn streetcars and the politicians in their pay, most conspicuously William M. Tweed, the notorious "Boss" of Tammany Hall.

The technology underground is a thriving, humming, and often literally scintillating subculture of amateur inventors and scientific envelope-pushers who dream up, design, and build machines that whoosh, rumble, fly—and occasionally hurl pumpkins across enormous distances. In the process they...

A secret network of safe houses, committees and guides that stretched well below the Mason-Dixon Line into the brutal slave states of the American South, the Underground Railroad remains one of the most impressive and well-organised resistance movements in modern history. It facilitated the escape of more than 30,000 slave 'passengers' through America and into Canada during its peak years of 1850-60, and, in total, an estimated 100,000 slaves found their freedom through the network.