How do steam locomotives work? Fire+water=steam. Unlike modern machines, the steam locomotive openly displays many of its parts.
Steam Engine Education Materials
George Stephenson's First Steam Locomotive
How Steam Locomotives Work - Water and Energy into the 21st Century
Indian Model Railroad BLOG - DELHI TO BOMBAY MODEL RAILROAD
How Do Steam Locomotives Work - Steam Engines Explained
How a Steam Locomotive Works
Locomotives - The Transcontinental Railroad
how steam engines work
Animation of How a Steam Locomotive's Boiler Works
LEGO Pneumatic Steam Locomotive Works and Sounds Like the Real Thing - autoevolution