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Anonymous users2024-02-12Edison was born on February 11, 1847 in the town of Milan, Ohio, USA. He felt that the most common lighting tools used by people were kerosene lamps or gas lamps.
This kind of lamp burns kerosene or gas, so it has a strong black smoke and pungent odor, and it is very inconvenient to add fuel and scrub the lampshade frequently. So in order to develop electric lights, Edison often worked more than ten hours a day in the laboratory, sometimes for several days of experiments, after the invention of carbon filament as filament, he successively tested more than 6,000 kinds of plant fibers, but he never gave up, and finally selected bamboo wire, through the high-temperature closed furnace coke, reprocessing, to obtain carbonized bamboo wire, installed in the bulb lead, once again improve the vacuum degree of the bulb, the lamp can be lit continuously for 1200 hours. "Hard work pays off", and finally on October 21, 1879, the electric light was invented.
Common. Gauss, a famous German mathematician, has been very fond of mathematics since he was a child, and once the teacher came up with a geometry problem and said that so far, there is no correct answer in the world. Gauss was eager to try, and from then on he studied day and night, going to the library every Sunday, and munching on two loaves of bread when he was hungry, and there was no one in the library who did not know him.
In this way, Gauss consulted a lot of information, and the calculus paper alone filled most of the room, and it only took him three years to solve the math problem. He is known as the "Prince of Mathematics".
Where there is a will, there is a way".Every successful person has put in a huge amount of labor. "Hard-working people, the sky does not pay", as long as you have made efforts, the iron pillar can also be sharpened into a needle.
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Anonymous users2024-02-11In order to make it more convenient for people to use electric lights, Edison decided to invent a lamp with soft light and can be used by thousands of households, so he began to experiment, but tested more than 1,600 kinds of materials, he did not succeed, I failed again and again, many experts think that the future of electric lights is bleak, some famous experts in Britain even ridiculed, Edison's research is meaningless, some reporters also reported that Edison's ideal has come to naught, Edison's old friend Kenji came to visit him, they chatted while Edison saw his old friend's beard and said I want to try your beard, and the bearded Kenji was also unceremoniously cut off a handful and handed it to Edison, Edison confidently picked a few thick slag mustaches, but the result was conceivably unsuccessful, and the chicken gnawed and said My hair, what if it can be used? Edison was deeply moved by the spirit of his old friend, but he didn't use his hair anymore, because the material of the hair and beard is the same, when he sent off the old friend, he saw the cotton clothes on his body, and said that I want to use your cotton thread, Kenji didn't say a word, picked up the scissors and cut out a pinch of cotton thread and wrapped it together and handed it to him, and finally, with the help of his assistant, Edison successfully invented the electric light.
Edison was a world-famous inventor, he was an American, when he was a child, because his family was poor, he only went to school for three months, and he started selling newspapers at the age of eleven or twelve, and he loved science, and he often saved money, and bought scientific books and chemicals, and the equipment he used for experiments, was some bottles and cans from the garbage heap, and when Edison was 12 years old, he sold newspapers on the train, and there was a special car for passengers to smoke, and the captain agreed that he would occupy a corner there, and he moved the chemicals and the bottles and cans there, and sold out of newspapers. So I did all kinds of interesting experiments Once, when the train was moving, it shook a bottle of white phosphorus down, and the phosphorus burned as soon as it came into the air, and a lot of people came and put out the fire with Edison, and the captain was so angry that he threw out all the things that Edison was experimenting with, and slapped him hard, and deafed one of his ears, and Edison's determination to delve into science didn't waver, and he saved money and started doing chemistry experiments again, and once, sulfuric acid burned his clothes; Another time, nitric acid almost blinded him, and he was not intimidated by the danger, but he still did the experiment tenaciously Edison tried to make electric lights, and in order to find a cheap, long-lasting filament, he did many experiments He used to work in the laboratory for dozens of hours in a row, and he was so tired that he lay down on the bench and slept for a while, and he worked so tirelessly that he finally found the right filament, and invented the electric light, and later, Edison invented the motion picture and the gramophone. There were more than 1,000 things he invented in his lifetime, and Edison devoted his whole life to great causes that benefit all mankind; And when it comes to clothing, I don't think too much about it
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