The story of a scientist should be shorter, less than 50 words.

In order to develop electric lights, Edison often worked more than ten hours a day in the laboratory, sometimes testing for several days in a row. After he invented carbon filament as a filament, he successively tested more than 6,000 plant fibers, and finally Bamboo filaments are selected, burned in a high-temperature sealed furnace, and then processed to obtain carbonized bamboo filaments, which are then installed into the light bulb, thus increasing the vacuum degree of the light bulb again. The light can be continuously lit for 1,200 hours. The invention of the electric light caused the gas stock price to plummet 12% in three days.

Following Edison, in 1909, the American James Curry invented the use of tungsten filament instead of carbon filament, which greatly increased the efficiency of electric lamps. Since then, electric lights have leapt to a new level, and various lamps such as fluorescent lamps and iodine-tungsten lamps have sprung up on the lighting stage.

Lamps turn darkness into light, making the world more dazzling and colorful.