We were not fighters like them; we were cunning and cowardly, and it was because of our cunning and cowardice, and our inordinate capacity for fear, that we survived in that frightfully hostile environment of the Younger World.
Union Pacific's 4-6-6-4 Challenger steam locomotive #3985 is the largest operating locomotive in the world. Built in July 1943 and still used by UP for occasional excursion throughout the western United States, the 3985 weighs 1,073,900 pounds (537 tons).
How Steam Locomotives Work. The steam powered engine is the heart of the steam locomotive. In order to understand how the locomotive works, it is important to first understand how the steam engine operates. This involves water and fire, which is used to create heat.n 1814, the first successful steam engine locomotive was built by the British Engineer George Stephenson called Bluecher, blÃ¼cher which could haul up to 30 tons of coal at 4mph going. Uphill later in, 1825 stephenson also created the first public railway for steam. locomotives