Edison made outstanding contributions to mankind by inventing the electric light. What other inventions did he make?

Speaking of the inventor Edison, everyone is no stranger. He is a very famous inventor and entrepreneur in the United States, and has many invention patents. At the same time, he was also the first person in human history to invent using the principle of mass production. He had a profound impact on the entire world. Edison invented many things in his life. The most impressive thing is the invention of the electric light. The invention of the electric light changed the world. In 1879, Edison began to study electric lights. At that time, due to economic problems, he sought financial support and established a joint-stock company. Until Edison's electric light was successfully developed in 1879, he used nearly 1,600 kinds of materials before he succeeded. Other inventions

In addition to the electric light, Edison also had many other inventions, such as the phonograph. In 1877, Edison invented the phenomenon of a telephone microphone that vibrated when he spoke. On August 15, 1877, Edison drew the phonograph. In terms of movies, Edison invented the movable movie camera. Edison not only invented many things, but also transformed some things. Voting counters, common printing presses and mimeograph machines, electric meters, and talkies were all invented by Edison. The original inventor of the electric light was David

Many people think that Edison was the original inventor of the electric light, which is contrary to people's understanding. The original inventor of the electric light was a British chemist named David. In the laboratory, he used platinum wire to energize and then emit light. In 1810, he used carbon rods for illumination, which was the earliest prototype of the light bulb. In addition to David, British engineer Swan also conducted research and invented the vacuum light bulb in 1878. By 1879, Edison was inspired by reports about light bulbs and tried many different materials as filaments. Because we successfully found the right company, we put it into production in large quantities.

Edison's life was very brilliant. He was constantly inventing and entrepreneurship, and made great contributions to the world. At the same time, he was also quite controversial. For example, he proved that alternating current was dangerous and even invented the electric chair to shock death row prisoners.