USA HISTORY

Detailed explanation-1: -The most important inventions in the Second Industrial Revolution include the telegraph, the telephone, the modern lightbulb, the assembly line, the automobile, aircraft, and the construction of the transcontinental railroad in the United States.

Detailed explanation-2: -While the First Industrial Revolution centered on textile manufacturing and the innovation of the steam engine, the Second Industrial Revolution focused instead on steel production, the automobile and advances in electricity. Discoveries in the field of electricity improved communication technologies.

Detailed explanation-3: -The steam engine was one of the most important inventions of the Industrial Revolution. Steam engines were used in all sorts of applications including factories, mines, locomotives, and steamboats.

Detailed explanation-4: -Major Technological Advances of the Second Industrial Revolution. 1870s. Automatic signals, air brakes, and knuckle couplers on the railroads; the Bessemer and then the open-hearth process in the steel mills; the telephone, electric light, and typewriter.