1, atom
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.
2. Aircraft
Aircraft 1903 12 17, the first powered aircraft begins to fly. 1933, the world's first regular air route was opened, which greatly expanded the space for human activities.
3. Plastic
Plastics that did not exist before this century have become indispensable in our century. It started with the manufacturing method of phenolic plastics invented by American L. Baekeland in 1909.
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.
4. cars
19 13, the automobile assembly line of Henry Ford, an American automobile manufacturer, officially started, which reduced the cost, improved the efficiency, and made cars enter the homes of ordinary people, becoming a decisive event in this century.
5. electric light
1858, British Swan made the world's first carbon filament lamp. 1878, Edison invented a better light bulb, 1879, Edison invented an electric lamp that can continuously illuminate 1000 hours. 19 13, after the tungsten wire was patented, the electric light began to light up.
6. Satellite TV
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.
Nowadays, the per capita possession of TV in the world is extremely high (one per 10 people on average), which started at 1927 and started in the hands of Americans.
7. Computer
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.
Extended data
In addition to the above major inventions and discoveries, human beings have also made major inventions and discoveries in medicine.
1, penicillin
1928 Summer, British microbiologist Fleming accidentally discovered penicillin, which did not attract attention at that time. After the outbreak of World War II, due to the urgent need for the prevention and treatment of infectious diseases, antibacterial drugs have become the focus of medical attention. 1938, Frauli and Qian En studied penicillin again, and it took only one year to lay the foundation of penicillin therapeutics. The three of them won the Nobel Prize in Medical Physiology from 65438 to 0945.
2. Organ transplantation
Organ transplantation is another great progress in medicine in this century. 1936, the former Soviet Union performed kidney transplantation for the first time. 1954, an American woman who was only 2 1 year old transplanted the kidney of her identical twin sister. Now she is the mother of two children and has become the oldest person in the world after kidney transplantation. 1964, American scientists successfully transplanted their hearts for the first time. At present, there are more than 400 people who have survived heart transplantation in the world, and two of them have lived for 10 years.
3. Endoscopic surgery
From 65438 to 0987, French doctor Moritt performed the world's first endoscopic cholecystectomy with cystoscope for the first time, which was an epoch-making progress in the history of human surgery. In the early 1990s, endoscopic surgery, represented by laparoscopy, became popular all over the world. This kind of operation is widely recognized for its minimal trauma and quick recovery. At present, it has been applied to abdominal surgery and thoracic surgery. Obstetrics and gynecology and urology have been well applied.
Baidu Encyclopedia-Invention of the 20th Century