What does it take to turn twenty tons of steel into top-notch vehicles in less than a day? How does a pile of lumber become a million dollar home in a mere week?

This documentary shows how skateboards, electronic control devices, snow blowers and pipe wrenches are made, TV-PG

They are the life blood of the American Economy, transporting 1.8 billion tons of freight each year, carrying everything from crops, to consumer electronics, cars to chemicals.

Traveling between 135 and 190 miles per hour with a high safety record, bullet trains can be found throughout Europe, Japan, and on the US eastern seaboard.

It starts with a spark, but some ideas catch fire and in the process change the world.