Höyryrauta

Höyryrauta, also known as steam locomotive, is a type of railway locomotive that uses steam as its primary power source. It was the dominant form of traction on railways throughout the 19th and early 20th centuries, and remains in use in some parts of the world today. The basic components of a steam locomotive include a boiler, a firebox, a steam engine, and a tender. The boiler generates steam from water heated by burning fuel, which is then directed to the steam engine. The steam engine converts the energy of the steam into mechanical motion, which is transmitted to the wheels via a series of gears and axles. The tender, a separate vehicle attached to the locomotive, carries the fuel and water needed for operation. Steam locomotives are known for their distinctive sound and appearance, with the characteristic "choo-choo" noise produced by the steam escaping from the whistle and the puff of smoke from the chimney. Despite their decline in popularity due to the advent of diesel and electric locomotives, steam locomotives continue to be used in some tourist railways and heritage railways around the world.