The invention of the electric light by Edison failed several times

Edison's invention of the electric light took about 1,600 times to succeed. On October 21, 1879, the electric light was developed. To do this, Edison experimented with nearly 1,600 materials.

After 45 hours of continuous use, the filament of this lamp was burned off. This is the first lamp of mankind with a wide range of practical value. This type of electric lamp has various names such as "high-resistance incandescent lamp" and "carbonized cotton filament lamp", and is made of carbonized cotton silk.

The twists and turns of Edison's invention of the electric light:

In 1874, two Canadian electrical technicians applied for a patent for an electric lamp: filling a glass bubble with nitrogen to emit light on a charged carbon electrode, but the electrical technicians did not have enough money to continue perfecting the invention, so they sold the patent to Edison in 1875. Edison bought a patent and tried to improve this filament.

Eventually, in 1880, Edison produced a carbonized bamboo filament lamp that lasted 1,200 hours. However, the U.S. Patent Office ruled that Edison's invention of carbon fiber incandescent lamps was invalid. After years of litigation, Henri Goebbels won the patent, which Edison eventually bought from Goebbels' impoverished widow.

In the United Kingdom, Swan sued Edison for patent infringement. Later, it was reconciled outside of the court and a joint venture was formed in 1883. Swan later sold his shares and patents to Edison.

Edison's frustrations in inventing the light bulb were:

1. I can't find a suitable material to make a tease sun filament.

2. Research funds are not guaranteed.

In order to invent the electric light, Edison established the world's first technology laboratory, which put the creation and invention of technology on the basis of science. In the technical laboratory, he made filaments from charcoal strips, nails, lattices, platinum, etc., and he experimented with more than 1,600 materials, but all failed.

For this reason, many experts believe that the future of the electric light that Edison wanted to study is bleak. Some people also ridiculed Edison's research as "meaningless" and "doing something stupid."

Edison experienced tens of thousands of failures in the development of electric lights, and the exact number of times cannot be calculated. On October 21, 1879, Edison's electric lamp was finally successfully developed, Edison tried nearly 1,600 kinds of materials for testing, only to find a material that can be used continuously for 45 hours, this is the first electric lamp with extensive practical value, this electric lamp has a variety of names for high-resistance incandescent lamp and carbonized cotton filament lamp, made of carbonized cotton silk.

In 1880, Edison sent assistants and experts to search for suitable bamboo around the world, there are about 6,000 kinds, among which the carbon filament made of Japanese bamboo is the most practical, which can be lit for more than 1,000 hours, to achieve the purpose of durability, this lamp is called carbonized bamboo wire lamp. At the beginning of the 20th century, the carbonized filament was replaced by tungsten filament, and tungsten incandescent lamps are still used today.