Since then, people have entered the electrical age, especially Edison in the United States. After he invented the ticket vending machine in 1869 and won a prize of $40,000, he founded Edison Company, and established a laboratory in New Jersey in 1876, and made numerous breakthroughs in the field of electricity by using experimental methods, among which incandescent lamp was the result of many experiments in 1000. Later, he also improved the typewriter, phonograph, film machine and other electrical equipment, and obtained more than 1000 patents.
With the application of these new appliances, the demand for electricity is increasing. 1882, Edison built the first thermal power station in new york, but the transmission line at this time was DC circuit, which was not popular at that time because of the high cost and extremely unstable network.
The following year, Tesla built an AC motor, which improved some shortcomings of Edison's DC, and could be transported over a long distance, making industrial electricity gradually popular. Later, with the support of Westinghouse, Tesla designed a large AC motor, and since then, AC equipment has become the main industrial electrical equipment.
The wide application of electric power not only provides cheap energy for industry, but also promotes the development of a series of electrical equipment. For example, power generation equipment related to power generation, transmission and distribution, and power transmission equipment such as transformers, wires and cables.
The first industrial revolution was the steam engine era, which successfully crossed the Malthusian trap in Britain at that time, realized the explosive growth of population, realized industrialization and promoted the growth of urban population. This electrical revolution has greatly improved people's urban life.
At the same time, the electrical revolution also gave birth to the development of communication technology. 1837, Morse made the first telegraph, and the United States laid the first telegraph line from Washington to Baltimore. 1876, Bell and his assistant made a long-distance call for the first time. Four years later, Bell established his own telephone company. In less than a few years, the number of telephones in the United States reached more than 200,000, making it the most popular country in the world at that time.