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2.1. CULTURAL NOTES
The Second Industrial Revolution
The Second Industrial Revolution, also known as the Technological Revolution, was a phase of rapid industrialization in the final third of the 19th century and the beginning of the 20th. The First Industrial Revolution, which ended in the early-mid 1800s, was punctuated by a slowdown in macroinventions before the Second Industrial Revolution in 1870. Though a number of its characteristic events can be traced to earlier innovations in manufacturing, such as the establishment of a machine tool industry, the development of methods for manufacturing interchangeable parts, the Second Industrial Revolution is generally dated between 1870 and 1914 up to the start of World War I.
Advancements in manufacturing and production technology enabled the widespread adoption of preexisting technological systems such as telegraph and railroad networks, gas and water supply, and sewage systems, which had earlier been concentrated to a few select cities. The enormous expansion of rail and telegraph lines after 1870 allowed unprecedented movement of people and ideas, which culminated in a new wave of globalization. In the same period new systems were introduced, most significantly electrical power and telephones. The Second Industrial Revolution continued into the 20th century with early factory electrification and the production line, and ended at the start of the First World War.
The Second Industrial Revolution was a period of rapid industrial development, primarily in Britain, Germany and the United States, but also in France, the Low Countries, Italy and Japan. It followed on from the First Industrial Revolution that began in Britain in the late 18th century that then spread throughout Western Europe and North America. It was characterized by the build out of railroads, large-scale iron and steel production, widespread use of machinery in manufacturing, greatly increased use of steam power, widespread use of the telegraph, use of petroleum and the beginning of electrification. It also was the period during which modern organizational methods for operating large scale businesses over vast areas came into use.
Read more on http://www.history.com/topics
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Electrification
The theoretical and practical basis for the harnessing of electric power was laid by the scientist and experimentalist Michael Faraday. His inventions of electromagnetic rotary devices were the foundation of the practical use of electricity in technology.
In 1881, Sir Joseph Swan, inventor of the first feasible incandescent light bulb, supplied about 1,200 Swan incandescent lamps to the Savoy Theatre in the City of Westminster, London, which was the first theatre, and the first public building in the world, to be lit entirely by electricity. Swan’s light bulb had already been used in 1879 to light Mosley Street, in Newcastle upon Tyne, the first electrical street lighting installation in the world. This set the stage for the electrification of industry and the home. The first large scale central distribution supply plant was opened at Holborn Viaduct in London in 1882 and later at Pearl Street Station in New York City.
The first modern power station in the world was built by the English electrical engineer Sebastian de Ferranti at Deptford. Built on an unprecedented scale and pioneering the use of high voltage alternating current, it generated 800 kilowatts and supplied central London. On its completion in 1891 it supplied high-voltage AC power that was then «stepped down» with transformers for consumer use on each street. Electrification allowed the final major developments in manufacturing methods of the Second Industrial Revolution, namely the assembly line and mass production.
Electrification was called «the most important engineering achievement of the 20th century» by the National Academy of Engineering. Electric lighting in factories greatly improved working conditions, eliminating the heat and pollution caused by gas lighting, and reducing the fire hazard to the extent that the cost of electricity for lighting was often offset by the reduction in fire insurance premiums. Frank J. Sprague developed the first successful DC motor in 1886. By 1889 110 electric street railways were either using his equipment or in planning. The electric street railway became a major infrastructure before 1920. The AC (Induction motor) was developed in the 1890s and soon began to be used in the electrification of industry. Household electrification did not become common until the 1920s, and then only in cities. Fluorescent lighting was commercially introduced at the 1939 World’s Fair.
Read more on https://en.wikipedia.org/wiki/Second_Industrial_Revolution
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