One snowy night, Edison's mother suddenly fell ill, and his father hurriedly called for a doctor. The doctor said: "Your mother has acute appendicitis and needs surgery." At that time, there were only oil lamps and no electric lamps. The light of the oil lamp was very dim, and you would accidentally perform the wrong surgery. Edison suddenly thought of a good idea. He took out all the oil lamps in the house and put a mirror behind the oil lamps, so that the doctor could complete the operation smoothly. The doctor said: "My child, you saved your mother with your wisdom and cleverness." Edison took his mother's hand and said: "Mom, I want to make a sun at night."
In 1868, Edison Came to Boston as a telegraph operator. In the same year, he received his first invention patent. This is a device that automatically records votes. Edison thought the device would speed up the work of Congress and that it would be welcomed. However, one MP told him that they had no intention of speeding up the agenda and that sometimes voting slowly was politically necessary. From then on, Edison decided not to make any inventions that people didn't need.
In early June 1869, he came to New York (new
york) to look for work. While he was waiting to be summoned at a broker's office, a telegraph machine broke down. Edison was the only one there who could fix the telegraph, and he got a better job than he expected. In October, he and Pope jointly established a "Pop-Edison Company" to specialize in scientific instruments for electrical engineering. Here, he invented the "Edison Printing Press." He dedicated the printing press to the manager of a large Wall Street company. He wanted to ask for $5,000, but he lacked the courage to say it. So he asked the manager to give him a price, and the manager gave him $40,000.
While inventing the phonograph, Edison finally made a breakthrough in the research on electric lights after numerous failures. On October 22, 1879, Edison ignited the first electric light with widespread practical value. In order to extend the life of the filament, he tried again and tried more than 6,000 fiber materials before he found a new luminous body - Japanese bamboo filament, which can last for more than 1,000 hours, achieving the purpose of durability. In a way, this invention was the pinnacle achievement of Edison's life. He then created a power supply system that allowed distant lamps to distribute power from a central power station, a major technological achievement.