The Machines That Built America

Tractor Revolution

In the 1870s, harvesting crops is grueling, back-breaking work. Farmers must walk miles behind horse drawn plows to get

Plane Pioneers

In 1910, airplanes are a novelty, fragile wooden concoctions that float in the air--and crash. But that doesn't stop two

Titans of Television

A ruthless mogul takes on a little-known inventor in a high stakes battle that will change the world forever, asking the

Motorcycle Kings

At the end of the 19th century, private travel means taking a walk or riding a horse. But scrappy upstarts William Harle

Telephone Wars

In the 1870s communicating with distant family requires sending a letter, and waiting days or weeks for a reply. The tel

Power Tool Showdown

Tesla vs. Marconi

Two rival inventors have the same idea for improving things: wireless communication.

Home Tech Revolution

With America plugging in to electric power, a flood of innovation is not only changing industry, it's revolutionizing th