Write a few story names about class inventions.

In the early 20th century, few people could imagine that electromagnetic waves could travel any meaningful distance without any metal wires or cables as conductors. So how do radio signals travel along the surface of the earth? Of course, it can shoot straight off the horizon. But Guillermo Marconi believes that radio waves can travel along the surface of the earth if some conditions are provided. 1895, in his birthplace of Italy, he sent out a radio signal, which passed 1? 5 miles; Six years later, that is, 190 1 year 12 February 12 year, Marconi, who was only 27 years old, created a miracle. He tied the radio antenna firmly to a flying kite and sent a Morse code "S". It flew about 2000 miles across the Atlantic. This signal was sent from Huzhen, Polder, Cornwall, England, and reached St. John's in Newfoundland in less than 1 second. Marconi heard three faint ticks. This is the voice of the birth of the communication industry and the first shock wave of the arrival of the electronic age. This era includes radio broadcasting, television and mobile phones-so this is a discovery that will open our imagination.

1903 aircraft

Orville Wright and wilbur wright were able to fly their plane made of wood, wires and cloth for 59 seconds before sunset. However, few newspapers are willing to comment on this matter, because the idea that humans fly into the sky to become contemporary Daedalus and Icarus is considered absurd by most sober people. But once successful, the development of this undertaking is extremely rapid. In fact, it was only after 15 years that various parts of modern aircraft were manufactured, if not all, then at least ideas about them had been born.

1907 plastics

After learning about the invention of plastic, the happiest thing in the world is the elephant. For hundreds of years, everything from the handle to billiards has been made of ivory. 19 In the 1980s, the supply of ivory gradually decreased and billiards rose, which once triggered a crisis. Phelan and Cowland, the largest billiards producers in the United States, can't wait to offer a gold prize worth $65,438+0,000 pounds-a considerable prize-to recruit any "invention genius" who can provide synthetic products instead of ivory.

Until 1907, the Belgian inventor Leo Baekeland, who had made huge profits by inventing photographic paper for taking fast-moving photos, accidentally invented the compound of phenol and formaldehyde. This innovative pure synthetic plastic-phenolic plastic has the functions of heat protection, electricity protection and corrosion protection. Not only is it good for billiards, but one of the great benefits of plastic is its versatility. Everything from telephones to toilets, ashtrays to airplane parts is made of plastic. By 1968, if young graduates want to find a job in a promising and successful industry, they must listen to one word-plastic.

1923 TV set

The inventor of TV set is john baird, a British electronic engineer. In 1923, he applied for a patent for a device that can generate 8 lines of images. The first TV set was sold at the end of 1930. 1932, BBC broadcast the first standardized TV program in the world. Since then, mankind has begun to step into the television era. Today, people use satellites and other channels to spread TV signals to every corner of the earth.

1928 penicillin

People call penicillin the most contribution medicine in this century, and its inventor is British bacteriologist alexander fleming. 1928, in a bacterial culture experiment, the inventor happened to find that a mold later called penicillin was devouring the bacteria he cultivated in a Petri dish. According to Fleming's research results, after ten years' efforts, researchers at Oxford University in England finally found a way to refine this mold and put it into medical experiments. 1943, in order to treat soldiers injured in World War II, the Allies began to put penicillin into industrial production. For more than half a century, penicillin has saved countless lives, prompting people to pay attention to the research and development of antibiotic family.

1942 nuclear weapons

The atomic age began at 1942. In order to defeat the Axis fascism, the highest authorities in the United States decided to launch the Manhattan Project aimed at developing atomic weapons. At the end of the year, as part of the Manhattan Project, the first nuclear reactor was built and put into operation under a sports facility of the University of Chicago. 1On July 6th, 945, a mushroom cloud rose from the Atomic Energy Research Center in Los Alamos, New Mexico, USA, and the world's first atomic bomb exploded successfully. On August 6th and 9th of that year, the United States dropped two atomic bombs named "Fat Man" and "Little Boy" in Hiroshima and Nagasaki, Japan. The Japanese emperor then announced his unconditional surrender. The atomic bomb seems to have made great contributions to the victory of World War II, but mankind has lived in the shadow of terrible atomic weapons ever since.

1943 computer

Computer is the foundation of human society entering the information age, but it was born because of war. 1943, in order to decipher the German code, the British mathematician alan turing designed the first electromechanical computer named "Giant". Although it is only an imaginary computer for decoding, it initiated the development of computer technology, which is changing with each passing day. 1947, the transistor computer came out; 1959, the integrated circuit computer was born; 1970, computer produced large-scale integrated circuits; Since 1980s, a new generation of microcomputers have mushroomed. On this basis, mankind has ushered in a new network era.

1953DNA

1953 On February 28th, the famous British geneticist francis crick announced that he had "discovered the secret of life". Crick and his American colleague james watson devoted themselves to the research of life science for many years, and finally found the molecular structure of DNA double helix which determines the inheritance of life from the nucleus, and deciphered the genetic codes of human beings, plants and animals. This discovery initially revealed the secret of life, promoted the research and treatment of various diseases, and also promoted human research on improving food structure. In the first 20 years of the next century, it is possible for human beings to eliminate gene defects through gene therapy, and then overcome fatal sexual dysfunction such as cancer, heart disease, hemophilia and diabetes. Undoubtedly, the research results of DNA molecular structure have played a great role in studying life and treating diseases, but it also makes people face the moral crisis caused by it. For example, the development of cloning technology has given mankind a difficult problem.

1954 contraceptives

1954, American doctor gregory pincus invented the contraceptive pill, which is a mixture of two hormones that inhibit ovulation in women. Contraceptive pill is listed as one of the greatest scientific achievements in the 20th century because it liberates women from passive childbearing. From then on, women can control their own fertility, decide whether to have children according to their own wishes, and decide when to get pregnant according to their own situation. More importantly, it breaks the shackles that imprison women's sexual freedom, gives women the right to go out of the family and participate in social work, and finally expands women's influence in social politics, economy and culture.

1957 artificial satellite

1957 10 10 On 4 October, the Soviet Union launched the first artificial earth satellite in human history to commemorate the 40th anniversary of the victory of the October Revolution, marking the beginning of the space age. 1961April 2, Soviet astronaut Gagarin went into space in a spaceship and became the first person to go into space. 1969 On July 20th, two American astronauts landed on the moon in a spaceship. Satellites can transmit TV and radio program signals, and also provide services for aviation, Hainan Airlines, weather forecast and scientific and technological information, thus greatly "shrinking" the earth. In order to further explore the mysteries of the universe, human beings have placed many detectors on the main planets of the solar system, and grand plans to build an international space station are also in the pipeline.

1967 organ transplantation

From 65438 to 0967, South African surgeon Christiaan Barnard successfully performed the first heart transplant. Since then, with the development of medicine and medical equipment, medical scientists have gradually solved the problems of organ infection and successfully transplanted limbs, liver, skin, retina and even testicles. The medical community believes that the next frontier technology of organ transplantation is brain cell transplantation, which can cure medical ills such as Alzheimer's disease and Parkinson's disease. In the next century, medical scientists will devote themselves to solving the problem of xenotransplantation and transplanting organs from other animals into human bodies.

1978 IVF

Luis brown, a British girl, became the world's first test-tube baby at the age of 33. 1978, her mother's egg and her father's sperm successfully mated in a test tube and gave birth to her. Since then, in vitro pregnancy technology has been continuously developed and perfected, and 1984 embryo freezing technology has been successfully tested; From 65438 to 0990, the experiment of embryo transfer technology was successful. The successful cultivation of IVF has given great hope to infertile couples, but it has also aroused people's concern about a moral issue. For example, if a woman gives birth to a child through in vitro pregnancy when she is in her fifties or even sixties, it is possible that the child will die before she is a minor, so who will raise the orphan?

Four great inventions of China

compass

Compass is a simple tool to judge the direction. Originally known as Sina. The main component is a magnetic needle (commonly known as a magnet) that can rotate freely on the shaft. The magnetic needle can be kept in the tangential direction of magnetic meridian under the action of geomagnetic field. The north pole of the magnetic needle points to the geographical south pole, which can be used to identify the direction. It is often used in navigation, geodesy, tourism and military affairs. N of the compass refers to the north, e to the east, w to the west and s to the south. Compass is a kind of pointing instrument made by using the north-south polarity of magnets in the earth's magnetic field, and it has many shapes. As early as the Warring States Period, the ancestors of China had made Sina spoons with natural magnets to indicate the direction. During the Three Kingdoms and Wei Dynasties, Ma Jun made a mechanical device with magnets and differential gears to indicate the direction-the south guide car. Shen Kuo, a scientist in the Song Dynasty, recorded the method of making magnetic needles in his "Meng Qian Bi Tan". Later, it developed into a compass with a magnetic needle and an azimuth disk. At the latest in the late Northern Song Dynasty, the compass has been used for navigation; In the Southern Song Dynasty, the dial was used to guide exhibitions and economic and cultural exchanges, which played a great role.

make paper

(Also known as Cai Houzhi) About 3,500 years ago, Cai Lun improved the Shang Dynasty, and China had written characters carved on tortoise shell bones. In the Spring and Autumn Period, when Oracle Bone Inscriptions replaced tortoise shell bones with bamboo pieces, they were called bamboo slips and wooden slips. Oracle Bone Inscriptions and bamboo slips are very heavy. During the Warring States Period, Hui Shi, a thinker, liked reading. Every time he goes out to study, he is followed by five carts full of bamboo slips, so there is an allusion to learning to be rich and having five cars.

In the Western Han Dynasty, among the court nobles, they wrote with silk or cotton paper. Silk is the general name of silk. Writing on silk is easy. It is not only much more than bamboo slips, but also can be painted on them, but it is expensive and can only be used by a few royal nobles. In the 2nd century BC, there was paper in the early Western Han Dynasty, but Cai Lun only modified it.

Papermaking was introduced to Japan through Korea in the 7th century. It spread to the United Arab Emirates in the middle of the 8th century. It was not until the12nd century that Europe began to imitate China's method and set up factories in the Eastern Han Dynasty and the first year of Yuan Xing (A.D. 105). On the basis of summarizing predecessors' experience in making silk-woven crystals, Cai Lun made plant fiber paper suitable for writing with bark, broken fishing nets, rags and hemp heads as raw materials, and improved the papermaking technology, making paper a widely used writing material. It is called "Cai Hou Paper". Have a unified understanding of the concept of paper. What kind of article is called a "paper"? In ancient times, there were papyrus paper in Egypt, parchment paper in Europe, silk tissue paper, silk paper for writing and colorful monkey paper in China. Among them, only Cai Hou paper made of plant fiber has a far-reaching influence on the development of the world paper industry and the spread of human culture, and its basic technology is still in use today. According to the historical records and the research of later generations, the basic points of Cai Lun's papermaking can be summarized as follows: fiber sheets made from plant fibers by cutting, boiling, bleaching, tamping, curtain-making and drying. Fiber sheets that have not been treated by the basic steps of papermaking do not have the basic properties of paper, so they cannot be called paper in the traditional concept of ancient China. Egyptian papyrus is the earliest paper in the world, but parchment was widely used in medieval Europe. Because of the single raw material and limited room for improvement, these two kinds of paper were replaced by China paper which used various materials. There are still some places where papermaking is used to make paper.

be printed from type

Woodblock printing, which began in Sui Dynasty, was developed and perfected by Bi Sheng in Song Renzong, resulting in movable type printing, which was spread to Europe by Mongols, so Bi Sheng was later called the ancestor of printing. China's printing is the pioneer of modern human civilization, which has created conditions for the wide spread and exchange of knowledge. Engraving printing is to carve a protruding reverse writing on a piece of wood with a knife, and then ink it on paper. Every time a new book is printed, the board has to be engraved from scratch, which is very slow. If you make a mistake, you have to engrave it again. You can imagine the hard work.

The Diamond Sutra was printed in 868, the ninth year of Tang Xiantong, and it is the earliest printed matter engraved with time in the world. Bi Sheng, a civilian in Song Renzong in Qing Dynasty, invented movable type printing on the basis of the popularization of block printing. It is carved with clay, and every word is printed on it. After burning, it is printed. The characters are arranged and embedded on the iron plate, and then baked and pressed into a printing plate, which can be printed. The words on the printing plate can be removed and reused. This method of movable type printing already has the basic processes of modern printing-casting, typesetting and printing, which is 400 years earlier than the movable type printing process made by German J Gutenberg in the middle of15th century. Following clay movable type, China people have successively invented printing methods such as magnetic movable type, wood movable type, tin movable type and copper movable type. The invention and spread of printing greatly promoted the spread and development of human civilization.

gunpowder

As the first explosive mastered by human beings, gunpowder originated from alchemy in ancient China. The alchemical drugs used by ancient alchemists, such as nitrate and sulfur, were mastered as early as the Han Dynasty. After a long-term practice of alchemy, they invented gunpowder at the latest in Tang Xianzong Yuanhe three years ago (808), and used it to make gunpowder weapons for arson at the end of the Five Dynasties and the beginning of the Northern Song Dynasty. By the Song, Yuan and Ming Dynasties, all kinds of firearms such as rockets, fireballs (fire axes) and fire axes had reached the level of heating. The invention of gunpowder played an important role in the development of science and technology in the world. Modern black gunpowder was developed from ancient gunpowder in China.

Inventor in China

Bi Sheng-movable type printing

Cai Lun-papermaking

Shen Kuo (Song Dynasty) found a filament tied to the center of a magnetic needle (compass).

Ji Hansheng, a Modern Inventor

Huiyuan-(Yuan) milk powder, milk pimples, meat floss

Ancient alchemist-gunpowder (the world's earliest gunpowder formula: sulfur, saltpeter, saponin burning together)

Zhang Heng-Seismograph

Zhuge Liang-(Three Kingdoms) Steamed Bread, Wooden Cattle and Horses, Kongming Lantern)

Modern inventor Qu (1902) invented Yunnan Baiyao.

Modern Inventor Wang Xuan —— Laser Typesetting of Chinese Characters

Modern Inventor Yuan Longping —— Hybrid Rice

Modern inventor Yuejiu Xi-police riot catcher [1]

Modern inventor Ji Hansheng-(1953-) electronic stabilized energy-saving lamp, "loong pot" and "Ping An banquet" hip flask.

Modern Inventor-Yuejiu Xi

Foreign inventor

Birthday Commemoration of Edison, the "King of Invention in the World" [2]

Edison (1847 ~ 193 1) obtained more than 1000 invention patents for electric lights, movies, telegrams, telephones, phonographs and photocopiers.

Archimedes-(ancient Greece) Archimedes screw pump

Fleming penicillin

Penettos- safety glass

Biroz ballpoint pen

Siemens generator

Ben Ci-Automobile (internal combustion engine running)

Bell telephone

Marconi wireless telegraph company

Nobel-explosives

Baird-(1888-1946) British inventor. 1926, and made the world's first mechanical TV set.

Gilles personne de roberval-scale。

Igor ivanovich sikorsky-the first practical helicopter.

Robert Thomson-the first pneumatic tire

Fulton (1765— 18 15) was an American inventor. 1807, fulton made a steamboat.

Ben Ci (1844- 1929) is a German engineer. 1868, the world's first three-wheeled internal combustion engine car was built.

Volta (1745- 1829) is an Italian physicist. 1800, he made a voltaic pile, and soon invented a voltaic cell, which made people get a stable and continuous current for the first time.

Otto (1832- 189 1) is a German engineer. 1876, the first four-stroke cycle gas internal combustion engine was built. This made it possible for cars and subsequent planes to appear.

Daimler (1834- 1900) is a German mechanical engineer. 1883 made the first gasoline engine, and 1886 made the world's first four-wheel internal combustion engine car.

Parsons (1854— 193 1) is a British inventor. 1884, the first multi-stage reactive steam turbine was manufactured.

Dissel (1858- 19 13) is a German engineer. The first diesel engine was manufactured in 1897.

Bessemer (1813-1898) is a British engineer. Converter steelmaking was invented in 1856.

Edison was an American inventor. He completed 1093 inventions in his life, which had a great influence on mankind. 1897, he successfully developed the incandescent lamp.

Morse (1791-1872) was an American inventor. 1837, the invention of the telegraph, 1844, May 24th, the world's first telegraph was sent.

Bell is an American inventor. The telephone was invented in 1876.

Marconi (1874— 1937) is an Italian engineer. The wireless telegraph was invented in 1895. 1March 28th, 899, radio communication was successfully realized.

Nobel is a Swedish inventor. 1867 invented the safety explosive.

Nikola tesla (1856- 1943) was a Croatian inventor. Alternating current, Tesla coil, particle beam weapon, Tesla turbine engine, asynchronous motor, rotating magnetic field, ground fixed wave, double-wire coil, wireless technology.

Galileo (1564 ~ 1642) was an Italian inventor who invented the thermometer.

Bob-artificial blood vessel

Leland Clark-artificial blood

John von neumann (1903 ~1957)-computer.

Leibniz (1646-1716)-binary mathematics

Nikola Tesla

Tesla (1856— 1943) was originally named nikola tesla. He was born in Smithrian, Croatia, and later became an American citizen. In his early years, he worked in Edison Company in Paris, Europe, and was later transferred to Edison Electric Research Center in the United States to engage in creative work, working with Edison (1847-1931) * *. He invented the alternator. Later, he founded Tesla Electric Company, engaged in the production of alternators, motors and transformers, conducted research on high-frequency technology, and invented high-frequency generators and transformers. 1893, he gave a wonderful performance with alternating current at the World Expo held in Chicago, and proved the advantages and safety of alternating current with his Tesla coil. During the period of 1889, Tesla realized the high-voltage transmission experiment from colorado springs to new york. Since then, alternating current has entered the practical stage. Since then, he has also been engaged in the development of high-frequency electrothermal medical devices, radio broadcasting, microwave transmission of electric energy, television broadcasting and so on. In recognition of his achievements in realizing 57.6 m overhead 200 kV high-voltage transmission as early as 1896 ~ 1899, making the famous Tesla coil and his contribution to the AC system, the International Electrotechnical Association decided to use his name as the unit of magnetic induction intensity on his centenary birthday (1956).

I found so much. Let's adopt it. Love you, dear.