The discoveries and inventions of the 20th century were simple.

1895 movie

1897 aspirin

1900 blood transfusion

190 1 year nuclear

1902 radio fax machine

1903 aircraft stainless steel

1904 watch

1907 copier plastics

19 1 1 year air conditioner

19 13 automobile assembly line tungsten lamp

1920 credit card

1923 8-line image equipment (early TV)

1927 TV set

1928 penicillin

1929 penicillin

1935 radar

1939 nuclear energy

1940 color film

1942 nuclear weapons

1943 computer

1945 artificial kidney contact lens

1948 transistor radio

1953 DNA

1954 contraceptives

1957 artificial satellite

1958 heart recorder

1960 laser

1964 soft contact lenses

1967 organ transplant internet

1978 IVF

1983 robot

1997 cloning technology

1923 jet engine

Details:

X-ray has existed since 1895, and it was not applied to medical treatment until 10 years ago this century.

It exerts great energy.

Movies from 1895 to 65438+February 28th became an entertainment and the earliest popular audio.

The film Jazz Singer was released in new york on June 1927, which was also the first color film "City of Vanity".

City 1935 was released in Britain and America at the same time, and the first wide-screen movie 1953 came out.

Aspirin 1897, synthesis of acetylsalicylic acid by Felix Hoffman, Germany, two

A few years later, it was registered as aspirin, and a century later, it became the most popular drug.

Blood transfusion 1900 Karl Rand discovered human blood type, which made blood transfusion possible.

1900, the German scientist Planck discovered that when atoms split, they would release enormous energy, which he called "Quart", which was hailed as the great discovery of the century.

Aircraft190 14 August 200414, the first powered aircraft began to fly. 1933, in the world

The opening of the first regular air route has greatly expanded the space for human activities.

190 1 year radio, at the beginning of the 20th century, almost no one 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.

Radio 190 1 Italian Marconi successfully conducted the first radio communication.

Transistor radio was invented in 1948.

Fax 1902, the fax is sent for the first time, and the fax is used for business from 1926.

1903 stainless steel, before, steel was not only easy to rust, but also easy to be corroded. From 1903 to 19 12, stainless steel became an outstanding industrial metal as soon as it appeared. Nowadays, stainless steel is not only used in industry, but also widely used in medical treatment and human body.

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.

Watches are one of the inventions that have been changed many times in human history, and they are very comfortable to wear.

The watch appears in 1904.

Copier 1907, the world's earliest photographic copier appeared in new york, USA.

1959, Xerox 9 14 electrostatic copiers were widely used.

Plastic did not exist before this century, but has become an indispensable thing in our century.

It started with the manufacturing method of phenolic plastics invented by American L. Baekeland in 1909.

1907 plastics: after learning about the invention of plastics, 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.

Before air conditioning appeared, the emperor of China needed to get ice from the mountains in summer. 19 1 1 year, W.

Carrier invented air conditioning, and people began to conquer nature.

Automobile 19 13, American automobile manufacturer Henry Ford officially started his automobile assembly.

The assembly line reduced the cost, improved the efficiency, and made cars enter the homes of ordinary people, which became this.

A decisive event in the last century.

Electric light 19 13. After the patent of tungsten wire was obtained, the electric light began to light up.

In the history of credit card currency from 65438 to 0920, the emergence of credit card is the biggest revolution since the emergence of money. first

This credit card was issued in the 1920s, and the commonly used credit card is 1950.

Satellite TV: The inventor of TV 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.

Television Nowadays, the number of televisions per capita in the world is extremely high (one per 10 population on average).

It started at 1927 and started in the hands of Americans.

Penicillin (1928): People say that penicillin is 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.

Penicillin (penicillin) was first invented by Fleming in England in 1929, and was used in the second world in 194 1 year.

Soldiers injured in World War II are considered to be second only to the invention of atomic bombs.

Radar Since 1935, people began to use extremely short radio waves to measure long-distance or

An invisible target.

Nuclear energy was realized in 1939 and used for power generation in 1956.

Color photos have the principle of color photography since the last century, but it was not until this century 1940.

Only with the first batch of color films, color photos have gone through a long cross-century road.

1942 nuclear weapons: the atomic age began at 1942. In order to defeat the Axis fascism, the highest authorities of 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: the computer is the foundation for human society to enter 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.

Artificial kidney Willem Koff designed the first artificial kidney in 1945. This hemodialysis device

Resettlement has prolonged the lives of countless patients with renal failure.

Contact lenses were invented by medieval glasses until 1945 when contact lenses appeared.

1964 made substantial progress and invented soft contact lenses.

1953DNA, 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 the contraceptive invented by American doctor gregory pincus 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 Sputnik: 10/On October 4th, the Soviet Union launched the first Sputnik in human history, 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.

Heart recorder 1958, 60 years since Oksenning, Sweden invented the heart recorder.

Generation began to apply, so far, it has saved countless lives.

Laser 1960 The first laser was born.

1967 organ transplantation, 1967, South African surgeon Christiaan Barnard successfully performed the first heart transplant operation. 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.

1969 the internet is the largest computer interconnected by many networks in the world in this century.

Computer network and television together make the world news that happens every day spread to the earth in time.

Every corner has opened the curtain of the information age.

1978 IVF: British girl Louise Brown is the first IVF in the world, and now she is 3 1 year old. At that time, 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 a test-tube baby in her fifties or sixties, the old man may die while the child is still underage. So who will raise the orphan?

Robot 1983 is manufactured by Volkswagen in Wolfsburg, Federal Republic of Germany.

Made the first robot.

Cloning technology 1997, British scientists successfully bred cloned sheep "Dolly".

Before that, the only shortcoming of all imaginative creations of human beings was that "people can't make them".

People ",so humans have long attributed this most magical manufacturing to being invisible and intangible.

The mysterious power of. The birth of cloning technology broke the last myth of the 20th century.