Film in 1895
Aspirin in p>1897
Blood transfusion in p>19
Atomic nucleus in p>191
Radio fax machine in p>192
Aircraft stainless steel in p>193
Watch in p>194
Copier plastic in p>197
. 192 credit card
1923 8-line image device (early TV)
TV set in p>1927
penicillin in p>1928
penicillin in p>1929
radar in p>1935
nuclear energy in p>1939
color film in p>194
nuclear weapon in p>1942
computer in p>1943
artificial kidney contact lens in p>1945
. Medicine
1957 satellite
1958 cardiac recorder
196 laser
1964 soft contact lens
1967 organ transplant Internet
1978 IVF
1983 robot
1997 cloning technology
1923 jet.
The film became an entertainment on December 28th, 1895. The first popular audio film
Jazz Singer was released in new york in October l927, the first color film
Vanity City was released in Britain and America in 1935, and the first wide-screen film was released in 1953.
aspirin In 1897, felix hoffman, a German, synthesized acetylsalicylic acid. Two years later, it was registered as aspirin, and it became the most popular medicine a century later.
blood transfusion in 19, Karl Rand discovered human blood type, which made blood transfusion possible.
In p>19, the German scientist Planck discovered that when atoms split, they would release huge energy, which he called "Quart". This discovery was hailed as a century-long discovery.
airplane on August 14th, 191, the first powered airplane began to fly. In 1933, the first regular air route in the world was opened, which greatly expanded the space for human activities.
in p>191, in the early 2th century, almost no one could imagine that an electromagnetic wave could travel any meaningful distance without any metal wires or cables as conductors. So how can a radio signal travel along the surface of the earth? Of course, it can shoot off the horizon in a straight line. But Guglielmo Marconi believes that radio waves can travel along the surface of the earth if some conditions are provided. In 1895, in Italy, where he was born, he sent a radio signal, which traveled 1? 5 miles; Six years later, on December 12, 191, Marconi, who was only 27 years old, created a miracle. He tied the radio antenna firmly to a flying kite and launched a Morse code "S". It traveled about 2 miles across the Atlantic Ocean. This signal was sent from Huzhen, Polder, Cornwall, England, and reached St. John's in Newfoundland in less than one 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 cellular phones-so this is a discovery that will open our imagination.
Radio In 191, the Italian Marconi successfully conducted the first radio communication.
In p>1948, transistor radio was invented.
fax was first transmitted in 192, and it was used in business in 1926.
193 stainless steel, before, steel was not only easy to rust, but also easy to be corroded. From 193 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 medical treatment and human body
On December 17th, 193, Orville Wright and Wilbur Wright were able to make their plane made of wood, wires and cloth fly for 59 seconds before the sun went down. However, few newspapers are willing to comment on this matter, because the idea that human beings fly into the sky to become contemporary Daedalus and Icarus is considered ridiculous by most sober people. But once successful, the development of this cause is extremely rapid. In fact, only 15 years later, if not all the components of all modern aircraft have been made, then at least the idea about them has been born.
wristwatches, one of the inventions with many changes in human history, appeared in 194 as a more comfortable wristwatch.
Copier In 197, the world's earliest photographic copier appeared in new york, USA.
In p>1959, after the Xerox 914 electrostatic copier came into the market, it began to be widely used.
Plastic, which did not exist before this century, has become an indispensable thing in our century.
It started with the manufacturing method of phenolic plastic invented by American L. Baekeland in 199.
Plastics in p>197: After learning about the invention of plastics, the world was happiest than elephants. For hundreds of years, everything from the handle of a knife to billiards has been made of ivory. In the 198s, the gradual decrease of ivory supply and the rise of billiards triggered a crisis. Phelan and Cowland, the largest billiards producers in the United States, can't wait to offer a reward of $1, worth of gold-a considerable reward-to recruit any "invention genius" who can provide synthetic products instead of ivory.
Until 197, Leo Baekeland, a Belgian inventor 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 does it benefit billiards, but one of the great benefits of plastic lies in its versatility. From telephones to toilets, from ashtrays to airplane parts, everything uses 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, the emperor of China wanted to get the ice from the mountains in summer. In 1911, American W.
Carrier invented air-conditioning, and man began to conquer nature.
automobiles in 1913, Henry Ford, an American automobile manufacturer, officially started his automobile assembly
assembly line, which reduced the cost and improved the efficiency, and made automobiles enter the homes of ordinary people, which became a major event with decisive influence in this
century.
electric light in 1913. After the patent of tungsten wire was obtained, electric light began to shine
In the history of credit card money in p>192, the appearance of credit card was the biggest revolution since the appearance of money. The first
credit cards were issued in the 192s, and the commonly used credit cards were issued in 195.
Satellite TV: The inventor of TV set is john baird, a British electronic engineer. In 1923, he applied for a patent for his device which can produce 8-line images. The first TV set was sold at the end of 193. In 1932, the BBC broadcast the world's first standardized TV program. From then on, mankind began to step into the television era. Today, people use satellites and other channels to spread TV signals to every corner of the earth.
Television The per capita possession of television in the world today is extremely high (one for every 1 people on average)
It started in 1927 and was started by Americans.
Penicillin in p>1928: It is said that penicillin is the most contribution medicine in this century, and its inventor was British bacteriologist alexander fleming. In 1928, the inventor accidentally discovered in a bacterial culture experiment that a mold later called penicillin was devouring the bacteria he had cultivated in a Petri dish. According to the results of Fleming's research, researchers at Oxford University in England have finally found a way to refine this mold after ten years of hard work, and put it into medical treatment experiments. In 1943, in order to treat soldiers wounded in World War II, the Allies began to put penicillin into industrial production. In more than half a century, penicillin has saved countless lives and prompted people to pay attention to the research and development of antibiotic family.
penicillin (penicillin) was first developed by Fleming in Britain in 1929, and was used in soldiers injured in World War II in 1941. It is regarded as the invention second only to the atomic bomb.
radar since 1935, people began to use extremely short radio waves to detect distant or
invisible targets.
nuclear energy was realized in 1939 and was used for power generation in 1956.
color photographs have the principle of color photography since the last century, but it was not until 194
this century that the first batch of color films appeared, and color photographs have gone through a long cross-century road.
nuclear weapons in 1942: the atomic age began in 1942. In order to defeat the Axis fascism, the highest authorities in the United States decided to start the Manhattan Project aimed at developing atomic weapons. At the end of the year, as part of "Manhattan Project", the first nuclear reactor was built and put into operation under a sports facility of the University of Chicago. On July 16th, 1945, a mushroom cloud rose from the Los Alamos Atomic Energy Research Center in 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" on Hiroshima and Nagasaki in Japan. The Japanese emperor then announced his unconditional surrender. The atomic bomb seemed to have made great contributions to the victory of World War II, but mankind has since lived in the shadow of terrible atomic weapons.
Computer in p>1943: The computer was the foundation for human society to enter the information age, but it was born because of the war. In 1943, in order to decipher the German code, the British mathematician alan turing designed the first electromechanical computer named "Giant". Although it was only an imaginary computer for decoding, it pioneered the development of computer technology, and the development of computer technology changed with each passing day. In 1947, the transistor computer came out; In 1959, the integrated circuit computer was born; In 197, large-scale integrated circuits were produced by computers; Since the 198s, a new generation of microcomputers has sprung up. On this basis, mankind has ushered in a new era of network.
Artificial Kidney Willem Koff designed the first artificial kidney in 1945. This hemodialysis device
prolonged the lives of countless people with renal failure.
contact lenses were invented in medieval glasses, and substantial progress was not made until the appearance of contact lenses in 1945. In 1964, soft contact lenses were invented.
On February 28th, 1953, francis crick, a famous British geneticist, announced that he had "discovered the secret of life". Crick and his American colleague, james watson, have been devoted 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 2 years of the next century, it is possible for human beings to eliminate genetic defects by gene therapy, and then overcome cancer, heart disease, hemophilia, diabetes and other fatal dysfunction. Undoubtedly, the achievements of human research on the molecular structure of DNA play a great role in human research on life and treatment of diseases, but it also makes people face the moral crisis caused by it. For example, the development of cloning technology has given human beings a difficult problem.
In p>1954, American doctor gregory pincus invented the contraceptive pill, which is a mixture of two hormones that inhibit ovulation in women. The reason why the contraceptive pill is listed as one of the greatest scientific achievements in the 2th century is that it liberates women from passive fertility. From then on, women can control their fertility independently, 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 them the right to go out of the family to participate in social work, and finally expands women's influence in social politics, economy and culture.
1957 artificial satellite: On October 4th, the Soviet Union launched the first artificial earth satellite in human history to commemorate the 4th anniversary of the victory of the October Revolution, marking the beginning of the space age. On April 2, 1961, Soviet astronaut Gagarin went into space by spaceship and became the first person to go into space. On July 2, 1969, 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, humans have put many probes on the main planets of the solar system, and a grand plan to establish an international space station is also in the pipeline.
heart recorder In 1958, Swedish Oksen Ning invented the heart recorder, which was applied in the 6
generation. Up to now, countless lives have been saved by it.
The first laser was born in 196
Organ transplantation was carried out in 1967. In 1967, Christian Barnard, a South African surgeon, successfully performed the first heart transplant. Since then, with the more and more advanced medicine and medical equipment, medical scientists have gradually solved the problems such as infection of transplanted organs and successfully transplanted limbs, liver, skin, retina and even testis. The medical community believes that the next frontier technology of organ transplantation is brain cell transplantation, which can cure medical stubborn diseases 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.
The world's largest computer network, which was invented by the Internet in p>1969 in this century, was interconnected by many networks. Together with TV sets, the world news that happened every day spread to every corner of the earth in time, which opened the curtain of the information age.
1978 IVF: British girl Louise Brown was the first IVF in the world, and now she is 31 years old. At that time, her mother's egg and her father's sperm were successfully mated in a test tube, which gave birth to her. Since then, the technology of in vitro pregnancy has been continuously developed and perfected. In 1984, the experiment of embryo freezing technology was successful. In 199, 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 worries about a moral issue. For example, if a woman gives birth to a child through IVF in her fifties or even sixties, it is possible that the old man will die while the child is still underage, so who will?