Who invented the electric light? Who invented the electric light?

Who invented the electric light? Theory: In 1845, Starr, an American, proposed that carbon filaments could be used in vacuum bubbles.

Successful practice: Swan of England followed this line of thinking and invented the incandescent lamp. Development and improvement:

Edison extended the life of incandescent lamps and obtained this patent. Reference: It is generally believed that the inventor of the electric light was the inventor of the great inventor Edison, but in fact, experimental research in this area began before Edison.

In an 1845 U.S. patent file, Starr of Cincinnati proposed that carbon filaments could be used in vacuum bubbles. According to this line of thinking, Swan in England used strips of carbonized paper as filaments in an attempt to make the current pass through it to emit light, but because the vacuum technology was still very poor at that time, the residual air in the bulb caused the filament to burn out quickly. As a result, the lamp has a very short lifespan, only a few hours, and has no practical value.

In 1878, the advent of the vacuum pump allowed Swan to re-engage in research on incandescent lamps. In January 1879, he successfully experimented with the incandescent lamp in public and received praise. In 1879, Edison also began to invest in the study of electric lamps, he believed that the key to extending the life of incandescent lamps is to improve the vacuum of the bulb and the use of less electricity, strong luminescence, and the most cheap heat-resistant materials as filament, Edison has tried more than 1,600 kinds of heat-resistant materials, the results are not ideal, on October 21, 1879, he used the use of carbide cotton thread as filament, put it into the glass ball, and then start the gas machine to pump the ball into a vacuum.

As a result, the light emitted by the carbide cotton filament was bright and stable for more than 10 hours. In this way, the carbonized cotton silk incandescent lamp was born, for which Edison obtained a patent.

Edison wanted to invent the electric light, used more than 6,000 kinds of materials, experimented and talked about training more than 7,000 times, and did not give up after repeated failures, and finally developed the bamboo wire electric lamp.

The person who invented the electric light was Edison, and everyone knows it. And who knows how much effort he put in? At the beginning of the 19th century, people used oil lamps and candles to illuminate the light, but if you are not careful, a fire can break out.

In order to liberate mankind from the constraints of night, Edison decided to make electric lights to bring light to mankind.

Edison invented the electric light and did more than 1,500 experiments, but he did not find a suitable material for the filament of the electric light. It took 1,600 experiments with heat-resistant materials and more than 600 plant fibers to create the first carbon light bulb that could burn for 45 hours at a time. Later, he continued to improve the production method on this basis, and finally invented a bamboo light bulb that could light for 1,200 hours, which took 30 years.

I don't think my relatives are new to the name Edison. After all, he has always been active in the textbooks of our elementary school students, studying his quotes.

Most importantly, the historical story tells us that Edison invented the light bulb.

But in fact, was the light bulb really invented by Edison?

According to historical stories, on October 21, 1879, Edison made the world's first electric light bulb in his laboratory after thousands of experiments using carbonized winding cotton thread as a filament.

This bulb emits the light of about 10 kerosene lamps, allowing people to really see the world in the dark.

So the name Edison is associated with the light bulb.

But is the story true? It's a pity that this story is just a story, not true.

In fact, as early as 1801, an English chemist named David completed the electrification of platinum wire, and 9 years later, he invented the electric candle, which uses the electric arc between two carbon rods to complete the lighting.

Of course, according to the lighting logic of the "bulb", this is not really a light bulb.

So we pulled the timeline to 1854, the American scientist Goebbels used carbonized bamboo silk and put it in a vacuum glass bottle to emit electricity. At that time, the light bulb of Goebbels' experiment could already emit light for 400 hours continuously.

It was the first real light bulb in history, but Goebbels did not patent it at the time.

In 1874, two electricians in Canada invented a technology. They filled the glass bubble with nitrogen to make the charged carbon rods glow, which was equivalent to taking Goebbels's technology one step further.

Unsurprisingly, these two men would be the first inventors of the light bulb, but unfortunately, they lacked follow-up funds at the time, that is, they had no money. Doing research itself was a super expensive thing, so they sold the technology to Edison, as we know it, in 1875.

After Edison got this technology, he began to study light bulbs, but unfortunately Edison was too slow.

Although the molding technology was obtained, in 1878, an Englishman named Wilson also completed the "light bulb powered by carbon filament in a vacuum" and immediately applied for a patent.

The following year, after thousands of researches, Edison finally discovered the material of carbonized cotton silk. He was thrilled and thought he had taken a big step forward in leading humanity to the New World.

But what he didn't know was that as early as 1860, Wilson discovered that carbonized cotton silk could be used as a filament.

In 1880, Edison again discovered that carbonized bamboo silk was better than carbonized cotton silk, but Wilson actually discovered this in 1854.

It can be seen that Wilson was actually twenty or thirty years earlier than Edison, which Edison did not know.

In 1854, Henry Goebel, a German watchmaker who immigrated to the United States, made the first practical electric lamp from a carbonized bamboo wire placed in a vacuum glass bottle, which lasted for 400 hours, but he did not apply for a patent in time.

In 1860, the Englishman Joseph Swan also made a carbon filament electric lamp, but he failed to obtain a good vacuum environment that allowed the carbon filament to work for a long time. It was not until 1878, when British vacuum technology developed to the extent that it was necessary that he invented a light bulb powered by carbon filament under vacuum, and obtained a British patent. Swan's own house was the first private home in Britain to be electrically illuminated.

Question one: Who invented the electric light Edison.

On October 21, 1879, an American inventor finally lit the world's first practical electric light through a long period of trial and error. Since then, the name of this inventor, just like the lantern he invented, has entered thousands of households. He is Edison, who was praised as the "King of Invention" by later generations.

But Edison was not the first to invent the electric light, and it was the British scientist Swann who first invented the electric light. However, because of his invention of the electric lamp--- carbon filament to hold the high lamp is inconvenient, after Edison's invention of the practical carbon filament white woven lamp, finally succeeded.

Question 3: Who is the inventor of the electric lamp In 154, Heinrich Gepeier filament was tested in a vacuum and the filament lasted for a full 40 hours in this test, on October 22, 1879, Edison lit the lamp, the first electric lamp that really had a wide range of practical value.

Question 4: Who invented the electric light? In 1854, the American Henry Goebbels used a carbonized bamboo wire, placed it under a glass bottle in a vacuum, and then turned on the power to glow. His invention was the first actual incandescent electric lamp. However, no patent has been filed.

In 1858, the Englishman Joseph Erson Swan made the world's first carbon filament electric lamp. But **expensive, ordinary people can't afford it.

In 1879, the American inventor "Edison" finally lit the world's first practical electric light through a long period of trial and error. This electric light made it affordable for countless ordinary people, so Edison is widely regarded as the inventor of the electric light. The name of this inventor, like the electric light he invented, has entered thousands of households.

Question 5: Who first invented the light bulb? Now that people are so accustomed to electric lights, we can't imagine how dark and unbearable the night would be without lights. So, who exactly invented the electric light?

The first electric light was not invented by Edison.

In fact, electric light first appeared in the early 19th century. At the beginning of the 19th century, a British chemist used 2,000 batteries and two charcoal rods to make the world's first arc lamp. But this light is too strong to be installed on streets or squares, and cannot be used by ordinary households.

Countless scientists have racked their brains to create an inexpensive, high-quality, and long-lasting household electric light.

It was not until October 21, 1879 that the famous American scientist Thomas Alva Edison invented the world's first electric light bulb the size of a plowhole, and mankind entered the era of electric lighting.

The earliest practical electric lamp was the incandescent lamp, but long before the birth of the incandescent lamp, the Englishman Humphrey David used 2000 batteries and two carbon rods to make the arc lamp, but the arc lamp was too bright, produced too much heat and was not durable, and it could not be used in ordinary places.

At the beginning of the 18th century, people began to use gas lamps (gas lamps), but the gas was supplied by pipes, and once the gas leaked or blocked, it was very easy to cause accidents, and people were very eager to reform lighting. In fact, Edison set himself the impossible task: to create a system to supply electricity, in addition to improving the lighting.

So he and his friends worked tirelessly to do more than 1,600 experiments on heat-resistant materials and more than 600 kinds of plant fibers before making the first carbon light bulb, which can burn for 45 hours at a time. Later, he continued to improve the manufacturing method on this basis, and finally launched a bamboo light bulb that can ignite for 1,200 hours.

In the mid-eighties of the eighteenth century, Edison's electric light business was a success, a success that brought him more fame than any previous achievement. Before the mid-80s, he made few mistakes, and after the mid-80s, although he also achieved a lot, failures were not uncommon. One of Edison's most uncommendable acts was his criticism of alternating current, saying that it had *** and could cause death and injury, but he did not specify it.

That's why someone said, "It's a contradiction that a man like him, who has made many inventions himself, should attack other people's new inventions." He opposed the use of alternating current in favor of direct current, and was defeated in a fierce and stubborn polemic. In this respect, it reflects the stubborn conservatism that gradually developed after Edison became a celebrity.