What did trains run on before steam?

By the late 1700s, iron replaced the wooden rails and wheels as wagonways evolved into “tramways” and became popular throughout Europe. Horses still provided the “horsepower” for cargo until the steam-powered locomotive came into play in the early 1800s.



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The conversion from wood to coal began in Vermont around 1880 and was complete by 1892, with the bulk of the conversions taking place between 1884 and 1886. Coal was carried in a car behind the engine, and coal plants were constructed along rail lines. By 1890, passenger trains were equipped with steam heat.

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Beginning in the early 1900s, steam locomotives were gradually superseded by electric and diesel locomotives, with railways fully converting to electric and diesel power beginning in the late 1930s.

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The diesel engine drives an alternator, which produces electricity to run electric motors mounted on the locomotive's axles. The internal combustion engine was a dramatic improvement in efficiency over the steam locomotive, making substantial savings possible in maintenance and the elimination of widespread facilities.

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In rail transport, dieselisation refers to the replacement of the steam locomotive or electric locomotive with the diesel locomotive (usually the diesel-electric locomotive), a process which began in the 1930s and is now substantially complete around the world.

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Over the course of history trains were powered by steam, electricity and diesel fuel (although one of the earliest trains in USA was powered by horses that walked on treadmills). Currently trains transport around 40% of world's cargo.

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While modern trains won't litter the tracks with human excrement, the traditional method did just that. This is what was known as a hopper toilet. It could either be a simple hole in the floor (also known as a drop chute toilet) or a full-flush system.

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What happens to toilet waste on trains? While aeroplanes dumping waste onto the ground is an urban myth, trains, on the other hand, are a different story. While modern trains won't litter the tracks with human excrement, the traditional method did just that. This is what was known as a hopper toilet.

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Yes. As soon as it was considered impractical to make long stops at stations to let everybody go to toilet and wait until they were done before proceeding. Those only consisted of a bowl with a hole in the bottom and a tube onto the track.

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A train engine requires about a hundred litres of fuel to get it started. So it wouldn't be economical if the engine is stopped and started frequently. This apart, if the engine is stopped, the moving parts' lubrication will also come to a halt.

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Mechanical transmission is the simplest type; it is mainly used in very low-power switching locomotives and in low-power diesel railcars. Basically it is a clutch and gearbox similar to those used in automobiles. A hydraulic coupling, in some cases, is used in place of a friction clutch.

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Diesel engines are much more efficient than steam engines, but the combustion in the steam engine's firebox can be more carefully controlled and, so, possibly produce less of the types of pollution caused by imperfect combustion.

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