WESTWARD EXPANSION INDUSTRIALIZATION URBANIZATION 1870 1900
SECOND INDUSTRIAL REVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Airplanes
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Skyscrapers
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The Telegraph system
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Refrigerated Railroad Cars
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Detailed explanation-1: -The Bessemer process greatly reduced the cost of producing steel. Steel, which is lighter and stronger than iron, became an important material as America industrialized. It was used extensively in rails, bridges, and skyscrapers.
Detailed explanation-2: -Englishmen, Sir Henry Bessemer (1813-1898) invented the first process for mass-producing steel inexpensively, essential to the development of skyscrapers.
Detailed explanation-3: -Mass-Produced Steel Allows for Construction of Skyscrapers In 1855, Bessemer patented his own “decarbonization process, utilizing a blast of air.” This breakthrough in the production of steel opened the door for builders to start making taller and taller structures.
Detailed explanation-4: -From a small-scale output of pig-iron, major developments in steel production took place during the second half of the 19th century. The Bessemer process (1855) made it possible to produce steel as ingots.