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Spring 1995

Volume 10, Issue 4


In the early days of aviation, pilots learned to fly by instinct. But in low visibility, instinct was worse than useless—it was deadly. Finding a technical solution did not take long; overcoming the fliers’ seat-of-the-pants mystique did.
ONE OF ENGINEERING’S TOUGHEST challenges is usually undertaken by people with no training at all
The idea seemed fantastic: Dig a tunnel a quarter mile long under enemy territory without being detected and listen in on secret communications. In the end it went off without a hitch. Almost.
AMERICAN technology led the world by the end of the nineteenth century. But when it came to gunpowder, our armed forces were decades behind the times.


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