5 июн 1814 г. - Steam Engines
Описание:
In 1814, George Stephenson, a British engineer, built the very first steam engine for the locomotive. Within 15 years, New York ordered one straight from England, becoming the first American running train known as the Stourbridge Lion. Steam engines, also used in boats, were run by water and fire. Steam built up pressure within the engine, lifting the pistons and causing the wheels to turn. A worker constantly had to add wood and the train stopped at stations to fuel up with water. In the beginning the speed of locomotives was slow, sometimes only reaching 5 mph but quickly increased to around 20 mph. The weight of the Stourbridge was 7.5 tons, making it impossible to add passengers because the weight already exceeded what the tracks were built to hold, 4.5 tons. A little over a year from the first traveling train, a passenger train was built carrying 36 men on the first run. Most passenger trains were opened up, allowing the air to run through the walls. Over time trains were built lighter, tracks were built heavier and steam engines became electric or ran on diesel fuel.
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