Who invented the light bulb?

First of all, the question you asked is very strange: everyone said it was Edison (full name: Thomas Alva Edison 1847~ 193 1), which is certain. This is history! -1878 Edison began to study electric lights when he was 3 1 in September. At that time, the gas lamp had replaced the kerosene lamp, but the flame flickered and when it was extinguished, it would produce harmful gas; Arc lamp has also been invented and used in public places, but it is not suitable for indoor use because it hisses when burning and is too bright. At that time, many European and American scientists were already exploring to make a new and stable luminous body. Edison studied the arc lamp and announced that he could invent a satisfactory lamp, but he needed money. At that time, he was a man with 170 invention patents, and his inventions brought huge profits to capitalists, so a consortium was willing to provide him with financial assistance. After thousands of failures, in April of 1879, he improved the rod-shaped and tubular lamps of his predecessors and made a glass ball. 1879 65438+1Oct. 2 1 He fixed a carbon-treated cotton thread in a glass bulb, pumped out air, sealed the mouth, applied current to make it glow, and a new lighting object appeared.