Railroads, Telegraph, And Electricity

355 Words2 Pages
Railroads, Telegraph, and Electricity • Railroads When the first transcontinental railroad was completed in the spring of 1869, it was celebrated as a marvel of engineering and an invaluable new link between people and places. The outposts of the American West were connected to the population centers back east. People and goods could flow freely and quickly across the continent, as the overland journey had been reduced from one measured in months to one measured in mere days. Many contemporary observers remarked that the country seemed to grow smaller as it became better connected. • Telegraph A telegraph is any system that transmits encoded information by signal across a distance. Although it is associated with sending messages via an electric current, the word telegraph was coined to describe an optical system of sending coded messages. From its invention until the telephone became a viable system, the telegraph was the standard means of communicating both between and within metropolitan areas in both Europe and the United States. Telephones did not make the telegraph obsolete but rather complemented it for many decades. Telegrams and telexes used telegraphy but are rapidly being replaced by facsimile (fax) transmissions through telephone lines. Satellite transmission and high-frequency radio bands are used for international telegraphy. • Electricity Ever since the discovery of electricity, many advances in technology have changed the very way we conduct our lifestyles. Without electricity, technology as we know it today would be non-existent. The use of electrical impulse in medicine and electrical charge technologies are still being perfected to this day. The development of the electric light bulb to the point where it was commercially viable catalyzed the spread of electric power in the United States. Once the bulb became available, people were more
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