X-ray invented in the 20th century in 1895

Movies in 1895

Aspirin in 1897

Blood transfusion in 1900

1901 Atomic Nucleus

1902 Radio Fax Machine

1903 Aircraft Stainless Steel

1904 Watch

1907 Copier Plastic

1911 Air conditioning

1913 Car assembly line tungsten lamp

1920 Credit card

1923 8-line image device (early television )

1927 Television

1928 Penicillin

1929 Penicillin

1935 Radar

1939 Nuclear energy in 1940

Color film in 1940

Nuclear weapons in 1942

Computers in 1943

Artificial kidney contact lenses in 1945

Semiconductor radio in 1948

DNA in 1953

The birth control pill in 1954

Sputnik in 1957

Heartbeat record in 1958 Devices

Lasers in 1960

Soft contact lenses in 1964

Organ transplantation Internet in 1967

In vitro fertilization in 1978

Robots 1983

Cloning 1997

Jet Engine 1923

Details:

X-rays from 1895 The existing X-rays were not used in medical treatment until the first decade of this century, and they exerted their huge power.

Movies became a form of entertainment on December 28, 1895. The earliest popular sound film was "The Jazz Singer", which was released in New York in October 1927. The first The color film "City of the Vanities" was released simultaneously in the United Kingdom and the United States in 1935, and the first wide-screen film came out in 1953.

Aspirin In 1897, the German Felix Hofmann synthesized acetylsalicylic acid. Two years later, the trade name was registered as aspirin. A century later, it became the most popular drug. drug.

Blood transfusion In 1900, Carl Rand discovered human blood types, which made blood transfusion possible.

In 1900, German scientist Max Planck discovered that when atoms fission, they release huge amounts of energy. He called this energy "quart". This discovery was hailed as the landmark of the century. Discover.

Aircraft On August 14, 1901, the first powered aircraft began to fly. In 1933, the world's first regular air route was opened, which greatly expanded the space for human activities.

Radio in 1901 In the early 20th century, few could imagine that an electromagnetic wave could travel any meaningful distance without any metal wires or cables as conductors. So how is it possible for a radio signal to travel along the surface of the Earth? Of course it can travel in a straight line off the horizon. But Guglielmo Marconi believed that radio waves could travel along the Earth's surface if certain conditions were provided. In 1895, in Italy, his birthplace, he launched a radio signal that traveled 1.5 miles; 6 years later, on December 12, 1901, Marconi, who was only 27 years old, created a miracle. The radio antenna, securely attached to the high-flying kite, transmitted a Morse code "S." It traveled approximately 2,000 miles and crossed the Atlantic Ocean. The signal was sent from the town of Pordehu in Cornwall, England, and arrived in St. John's, Newfoundland, where it was received, in less than a second. Marconi heard three faint ticks. This is the sound announcing the birth of the communications industry and the first shock wave of the arrival of the electronic age.

This era included radio broadcasting, television and cellular telephones - so this is a discovery that will open up our imaginations.

Radio In 1901, Italian Marconi successfully conducted the first radio communication.

In 1948, the semiconductor radio was invented.

Fax In 1902, the fax was transmitted for the first time, and its use in business began in 1926.

1903 stainless steel, before, steel was not only easy to rust, but also easy to be corroded. From 1903 to 1912, 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 medicine and human body

On December 17, 1903, before the sun went down, Orville Wright and Wilbur Wright were able to make stainless steel stainless steel. Their plane made of wood, wire and fabric flew for 59 seconds. But few newspapers are willing to comment on this matter, because the idea of ??humans flying into the sky and becoming the contemporary Daedalus and Icarus is considered ridiculous by most sane people. But once it succeeds, the development of this business will be extremely rapid. In fact, just 15 years later, if not all the components of a modern aircraft, then at least the idea for them had been born.

The watch is one of the most changed inventions in human history. It is the most comfortable watch to wear.

The watch appeared in 1904.

Copier In 1907, the world's earliest photocopier appeared in New York, USA.

In 1959, after the Xerox 914 electrostatic copier was launched, copiers began to be widely used.

Plastics that did not exist before this century have become indispensable in our century.

It began with the invention of phenolic plastics by American L. Baekeland in 1909. Production method.

Plastic in 1907: After learning about the invention of plastic, the happiest person in the world was the elephant. For hundreds of years, ivory has been the standard ingredient in everything from knife handles to billiard balls. In the 1880s, the dwindling supply of ivory and the rise of billiards triggered a crisis. Phelan & Cowland, the largest billiard ball manufacturer in the United States, eagerly offered a gold reward worth $10,000—a considerable reward—to any “inventive genius” who could provide a synthetic substitute for ivory. .

It was not until 1907 that Leo Baekeland, a Belgian inventor who had made huge profits for inventing photographic paper for taking fast-moving photos, accidentally invented phenol and formaldehyde. compound. This first pure synthetic plastic - phenolic plastic, has the functions of heat protection, electricity protection and corrosion protection. It doesn't just benefit the game of pool. One of the great things about plastic is its versatility. It's used in everything from telephones to toilets, ashtrays to airplane parts. By 1968, young graduates looking for a job in a promising and successful industry had to listen to one word - plastic.

Before air conditioning, Chinese emperors used mountain ice to cool down in summer. In 1911, American W.

invented air conditioning, and man began to conquer the sky.

Cars In 1913, American car manufacturer Henry Ford officially launched his car assembly line.

The assembly line reduced costs and improved efficiency, bringing cars into the homes of ordinary people. This

event has a decisive impact on this century.

Electric light 1913. After the tungsten wire was patented, electric lights began to shine

In the history of credit card money in 1920, the emergence of credit cards was the biggest revolution since the emergence of currency. The first credit cards were issued in the 1920s, and the most commonly used credit cards were issued in 1950.

Satellite TV: The inventor of television was British electronic engineer John Baird. In 1923, he applied for a patent for a device he invented that could produce 8-line images. The first television set was sold at the end of 1930. In 1932, the British Broadcasting Corporation broadcast the world's first regulated television program. Since then, mankind has entered the television era. Today, people use satellites and other means to spread television signals to every corner of the earth.

Television has a very high per capita ownership of television in the world today (every 10 people own one on average)

It started in 1927 and was made by Americans.

Penicillin in 1928: People say that penicillin is the most contributed drug of this century. Its inventor is the British bacteriologist Alexander Fleming. In 1928, during a bacterial culture experiment, the inventor accidentally discovered that a mold later known as penicillin was devouring the bacteria he was cultivating in a petri dish. Based on the results of Fleming's research, after ten years of hard work, researchers at the University of Oxford in the UK finally found a way to extract this mold and put it into medical treatment trials. In 1943, in order to treat soldiers injured in World War II, the Allied forces began to put penicillin into industrial production. For more than half a century, penicillin saved countless lives and prompted people to pay attention to the research and development of the antibiotic family.

Penicillin (penicillin) was first developed by Fleming in the UK in 1929 and used in World War II in 1941. for the invention of the atomic bomb.

Radar Since 1935, people have begun to use extremely short radio waves to determine long-distance or

invisible targets.

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

Color photos The principle of color photography has been around in the last century, but it was not until 1940 of this century that the first batch of color films were produced. Color photos have gone through a long span. Road of the century.

Nuclear Weapons 1942: The Atomic Age began in 1942. In order to defeat the Axis fascists, the highest authorities in the United States decided to launch the "Manhattan Project" aimed at developing atomic weapons. By the end of the year, as part of the Manhattan Project, the first nuclear reactor was built and started operating beneath an athletic facility at the University of Chicago. On July 16, 1945, a mushroom cloud soared from the Los Alamos Atomic Energy Research Center in New Mexico, USA, and the world's first atomic bomb exploded successfully. On August 6 and 9 of that year, the United States dropped two atomic bombs named "Fat Man" and "Little Boy" on Hiroshima and Nagasaki, Japan. The Emperor of Japan subsequently announced an unconditional surrender. The atomic bomb seemed to have contributed greatly to the victory of World War II, but mankind has been living in the shadow of terrible atomic weapons ever since.

Computer in 1943: Computer is the foundation for human society to enter the information age, but it was born because of war. In 1943, in order to decipher the German code, the British mathematician Alan Turing designed the first electromechanical computer called "Giant". Although this was only a hypothetical computer for decoding, it pioneered computer technology. The first of its kind, computer technology has developed rapidly since then. In 1947, the transistor computer was born; in 1959, the integrated circuit computer was born; in 1970, the large-scale integrated circuit computer was produced; starting in the 1980s, a new generation of microcomputers emerged. On this basis, mankind has ushered in a new era of the Internet.

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

has prolonged the lives of countless patients with renal failure.

Contact lenses were invented as glasses in the Middle Ages. It was not until the emergence of contact lenses in 1945 that substantial progress was made. In 1964, soft contact lenses were invented.

1953DNA, on February 28, the famous British geneticist Francis Crick announced that he had "discovered the secret of life." Crick and his American colleague James Watson have been devoted to the research of life sciences for many years. They finally discovered the double helix molecular structure of DNA that determines the inheritance of life from the cell nucleus and deciphered the genetic code of humans, plants and animals. . This discovery initially revealed the secrets of life, promoted research and treatment of various diseases, and also promoted human research on improving food structure. In the first two decades of the next century, it will be possible to use gene therapy to eliminate genetic defects and conquer cancer, heart disease, hemophilia, diabetes and other fatal disorders.

The results of human research on the molecular structure of DNA are undoubtedly of great significance to human research on life and treatment of diseases, but they also make people face the moral crisis caused by it. For example, the development of cloning technology has created a problem for human beings. problem.

The birth control pill was invented by American physician Gregory Pincus in 1954. It is a mixture of two hormones that inhibit female ovulation. The reason why the contraceptive pill is listed as one of the greatest scientific achievements of the twentieth century is that it liberates women from passive reproduction. From then on, women can independently control their fertility and decide whether to have children according to their own wishes. According to Your own situation determines when to get pregnant. More importantly, it breaks the shackles that restrict women's sexual freedom, empowers them to go out of the family and participate in social work, and ultimately expands women's influence in social politics, economy, culture and other aspects.

1957 Artificial Satellite: On October 4, in order to commemorate the 40th anniversary of the victory of the October Revolution, the Soviet Union launched the first artificial earth satellite in human history, marking the beginning of the space era. On April 2, 1961, Soviet cosmonaut Gagarin entered space in a spacecraft and became the first person to enter space. On July 20, 1969, two American astronauts landed on the moon in a spacecraft. Satellites can transmit television and radio program signals, and can also provide services for aviation, maritime navigation, weather forecasting, scientific and technological information, etc., thereby greatly "shrinking" the earth. In order to further explore the mysteries of the universe, humans have placed many probes on the main planets of the solar system, and a grand plan to establish an international space station is also brewing.

Cardiac recorder In 1958, the Swede Oak Senning invented the cardiac recorder, which began to be used in the 1960s. To date, it has saved countless lives.

Laser The first laser was born in 1960

1967 Organ transplantation. In 1967, South African surgeon Christian. Barnard performed the first successful heart transplant. Since then, as medicines and medical equipment have become more and more advanced, medical scientists have gradually solved problems such as infection of transplanted organs, and successfully performed transplants of limbs, livers, skin, retinas and even testicles. The medical community believes that the next frontier of organ transplantation is brain cell transplantation to cure medically intractable diseases such as Alzheimer's disease and Parkinson's disease. In the next century, medical scientists will work hard to overcome the problem of xenogeneic organ transplantation and transplant organs from other animals into humans.

In 1969, the Internet was invented in this century. It is the world's largest computer network consisting of many interconnected networks.

Computer networks, together with televisions, allow timely dissemination of world news that occurs every day. to every corner of the earth

and opened the curtain of the information age.

1978 IVF: British girl Louise. Brown is the world's first test-tube baby and is now 31 years old. That year, 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 continued to develop and improve. In 1984, the embryo freezing technology was successfully tested; in 1990, the embryo transfer technology was successfully tested. The success of in vitro fertilization has given great hope to infertile couples, but it has also caused people to worry about a moral issue. For example, a woman in her 50s or even 60s should give birth to a child through in vitro pregnancy technology. , it is possible that the old man will die when the child is still underage, so who will raise the orphan?

The robot was manufactured by Volkswagen AG in Wolfsburg, Federal Republic of Germany in 1983

The first robot.

Cloning technology In 1997, British scientists successfully created the cloned sheep "Dolly".

Prior to this, among all the imaginative creations of mankind, the only flaw was that "man cannot create

man." Therefore, mankind has long attributed this most miraculous creation to To the mysterious power that is invisible and intangible

. The birth of cloning technology began to disintegrate the last myth of the 20th century.