/kloc-A merchant in Venice in the 5th century often went out to do business, but he was worried that his wife would go out to have an affair. On a rainy day, he walked in the street, with a lot of mud on his heels and difficult steps. Businessmen were inspired by this. Because Venice is a water city and boats are the main means of transportation, he thought that his wife would not walk on the springboard in high heels, so she might be trapped at home.
Unexpectedly, his wife felt very novel when she put on these shoes, and accompanied by the servant, she got on and off and played around. High-heeled shoes made her more graceful, and fashion celebrities followed suit, so high-heeled shoes quickly became popular.
raincoat
1747, French engineer Franois Fraineau made the world's earliest raincoat.
He used latex obtained from rubber wood to dip cloth shoes and coats in this latex solution, which can play a waterproof role.
McIntosh, who works in a rubber factory in Scotland, can't afford to buy rain gear, so he has to go to work in the rain every rainy day. One day, he accidentally spilled rubber juice on his clothes and could not wipe it off, so he had to wear it home. When it was raining outside, McIntosh was surprised to find that his clothes were not wet at all, so he simply coated all his clothes with rubber juice. This is the first tape raincoat in the world.
barber
1828 sheffield made a single-sided protection blade, which is the predecessor of the safety blade.
1895, an American salesman, Gillette, happened to meet the inventor painter, hoping to make a lot of money and invent something that was needed in all aspects and used once.
One day, Gillette shaved and found that the razor blade was just right for this idea. He designed a safe razor handle, but he couldn't find a manufacturer who could make thin blades. 190 1 year, he met Carson, the mechanic, solved the technical problem, integrated the hoe-shaped tool rest with the double-edged replaceable blade, and applied for a patent.
As early as 1900, the electric shaver was patented in the United States, but the first electric shaver suitable for commercial manufacture was designed by retired American army colonel Hick and patented in 1928.
Jingzi
Our ancestors made beautiful "transparent mirrors" more than 2000 years ago. At the beginning of the 4th century, Venetians made mirrors with tin foil and mercury on the back of glass, which looked very clear. In the 5th century, Nuremberg made a convex lens, and when making glass, it was made by coating it with a layer of mercury.
Modern mirrors are made by the method invented by German chemist Libiger in 1835. Silver nitrate is mixed with reducing agent to precipitate silver and attach it to the glass.
Traction chain
Zipper was first invented by Chicago mechanic Judson in 189 1 year.
In order to relieve the trouble of tying shoelaces every day, Judson invented a zipper which can replace shoelaces. This zipper consists of a row of hooks and a row of buttonholes. Pull an iron slider from bottom to top, and the hook and buttonhole can be fastened one by one. Judson sent the sample to Columbia Expo on 1893, which was well received and patented.
Nowadays, there are more and more kinds of zippers, and their applications are not limited to daily necessities, but also enter the fields of scientific research, medical care, military and so on, and are praised by some as one of the great civilizations of the 20th century 10.
fridge
The first artificially refrigerated compressed poplar was invented by Harrison at 185 1. Harrison is the owner of Quilen advertising company. When he cleaned the type with ether, he found that the ether coated on the metal had a strong cooling effect.
Ether is a liquid with low boiling point, which is easy to evaporate and absorb heat. Harrison developed a refrigerator using ether and pressure pump through research, and applied it to a brewery in Victoria, Australia, for refrigeration and cooling during brewing.
The first refrigerator with motor-driven compressor was invented by Swedish engineers Brighton and Mendes in 1923. Later, an American company bought their patent and produced the first batch of household refrigerators at 1925.
Edison, the king of invention
Telegraph, telephone and electric light are so common and common in today's advanced technology that no one will be surprised. But do you know how important these things were to people at that time and how ecstatic they were? Humans thus remembered their inventor-Edison.
Edison, known as the "King of Invention", is a famous American scientist and inventor. In his life, there were 1328 inventions registered in the patent office alone. How can a person who has only studied for three months have so many inventions? I think if you have heard the story of Edison incubating chickens, you will understand that his success stems from strong curiosity.
From 65438 to 0847, Edison was born into a merchant family in Milan, Ohio, USA. Edison showed great curiosity at an early age. Whenever he saw something he didn't understand, he grabbed the clothes of adults and kept asking questions, insisting on asking ugly questions.
One day, he pointed to the hen that was hatching eggs and asked his mother, "Why is the hen sitting under her ass?" Mother said, "Oh, that's a chicken!" " "In the afternoon, Edison suddenly disappeared, and the family was anxious to look around and finally found him in the henhouse. It turned out that he was squatting in the henhouse with a lot of eggs under his ass to hatch chickens! His parents saw it and couldn't help pulling him out to wash his face and clothes. Another time, he saw birds flying freely in the sky and thought, since birds can fly, why can't people fly? So, he found a kind of powder for his friends to eat, in order to let them fly into the sky. As a result, his little friend almost died, and Edison was severely beaten by his father.
Finally, Eddie grew up to 8 years old, and his parents sent him to a rural primary school, thinking that he could study with peace of mind from now on. Who knows, he still loves to get to the bottom of it, and often makes the teacher dumbfounded and embarrassed. Once in an arithmetic class, the teacher wrote "2+2=4" on the blackboard. Edison immediately stood up and asked, "Teacher, 2 plus 2" puzzled the teacher. He thinks Edison is a troublemaker and always disagrees with his teacher. So Edison attended classes for three months and was driven home by the teacher.
Edison's mother is a great mother. She didn't blame her only son for being driven back. Instead, she decided to educate her children well. When she found Edison curious and particularly interested in physics and chemistry, she bought him books about physics and chemistry experiments. Edison followed the book and started the experiment alone. It can be said that this is Edison's enlightenment education in scientific invention.
When he grew up, Edison learned radio transceiver technology. He got a job as a night shift operator at Stratford Railway Sub-bureau. According to the regulations, the night operator must send a signal to the train service director every hour after 9 pm. In order to have a good rest at night and study and invent during the day, Edison designed a telegraph that automatically sends signals on time. This is the prototype of the telegram.
Soon after, he improved the telegraph. After many experiments, a new type of telegraph was successfully trial-produced. Edison looked at the machine he invented and smiled with relief.
It should be said that every invention of Edison is closely related to his curiosity. After inventing the telegraph, he began to do telephone experiments. He found that the diaphragm in the teleprompter could vibrate with the sound, so he observed it carefully and made a detailed record in his notebook. Thus, a "talking machine" was made. When people heard the news, they all came to watch it and called him "the greatest inventor"
Not only famous scientists need curiosity, but we ordinary people also need curiosity to learn knowledge and achieve something. In July, the Science and Technology Department of Guangming Daily conducted a questionnaire survey on 1 18 middle school students who won the National Youth Science and Technology Invention Competition. In the column "Your main psychological characteristics", 92% of the students wrote. Is the big head first out of the matrix or the small head first out of the matrix In order to find out this problem, he rushed home immediately after school every day, squatted next to the chicken coop, and sometimes even forgot to eat dinner. After more than two months, He Ji finally found that the egg came out of the mother's body first. To this end, he wrote a paper, which was praised by many biologists. His discovery is actually a new discovery that has not been recorded in the bird literature.
Being a talent requires curiosity, but curiosity does not mean that you can become a talent. If you want to achieve something, you need to work hard. Curiosity is like a seed. Without seeds, towering trees can't grow, and people without curiosity can't invent anything. After the seeds are planted in black soil, they will gradually break through the soil and grow from seedlings into columns. With curiosity, sweat and hard work, Dr. Li Zhengdao, a famous contemporary physicist, said: "Curiosity is very important and indispensable to science. There is a simple reason. Only curiosity can ask questions and solve problems. The terrible thing is that you won't ask questions and take the first step. " Because curiosity is so important, many people call it the first virtue of success. For an ambitious and eager teenager, curiosity.
Both the story of Edison, a great inventor, and the story of He Ji, a middle school student, have proved a truth to us: curiosity-the inventor's heart.