(2). Generally speaking, the world's first computer, in 1945 by the United States of America, the University of Pennsylvania, two professors - Mochrie and Eckert designed and developed, its English name ENIAC (Eniac), in fact, is the electronic literacy computer. But before that, people had been studying computers for a long time.
2, 1769, the French N.J. Günew (Cugnot) made the world's first steam-driven three-wheeled car. But people generally 1886 as the first year of the automobile, but also some scholars put Karl. Some scholars regard the year when Karl Benz made the first three-wheeled automobile (1885) as the birth year of the automobile. Benz and Daimler are honored as the originators of the automobile industry.
3. The first machine that could really be called a computer was born in 1946 in the United States, invented by Mauchly and Eckert, and called ENIAC. This computer used vacuum tubes to process signals, so it was huge (filling up a room), consumed a lot of power (the whole town knew when it was in use because the lights in every house were dimmed!) It is very large (it fills a room), consumes a lot of power (the whole town knows when it is in use because the lights in every house go dark! And we usually refer to such computers using vacuum tubes as first generation computers.
4. "Watson, help me!" This was the distress call made on March 10, 1876, by Alexander Graham Bell - the heralded inventor of the telephone - to his assistant. As the first recorded telephone call, it changed the world.
He applied for a patent for the telephone on February 14, 1876, at the U.S. Patent Office. In fact, just two hours after he filed his application, a man named E?6?1 Gray also applied for a patent for the telephone.
5. In 1924, Englishman Baird invented the most primitive television set, which transmitted images using electricity.
The U.S. RCA introduced the world's first black-and-white television set in 1939, and by 1953 set the national standard for color television as well as introducing the RCA color television set in 1954. Best Answer
19th Century:
In 1888, Dunlop, an Irish veterinarian, was inspired by the swelling of cows' stomachs, and glued the rubber tubes he used to water his garden into a round shape and pumped them up to mount them on bicycles, which was the beginning of the pneumatic tire. Pneumatic tires are an epoch-making innovation in the history of bicycle development not only fundamentally changed the riding performance of bicycles, but also perfected the use of bicycles. From 1791 to 1888, the invention and improvement of the bicycle, the originator of the motorcycle, experienced nearly 100 years of unremitting struggle by these inventors. We can't help but be impressed by the inventiveness of mankind.
1886 British mechanical engineer Staley, from the mechanical, kinematic point of view, designed a new style of bicycle, mounted fork and brake, front and rear wheels of the same size to maintain balance, and made of steel tubes with a diamond-shaped frame, but also the first use of rubber wheels. Staley not only improved the structure of the bicycle, but also adapted many machine tools for the production of bicycle parts, opening up a wide path for the mass production and popularization of bicycles, so he was called the "Father of the Bicycle" by later generations. The bicycles he designed are the same as the bicycles of today.
In 1845, the German von Martens invented the world's first rotary machine that could be swung 150°. In 1849 David Brust invented the stereoscopic camera and the two-lens stereoscopic viewer. 1861 physicist Maxwell invented the world's first color photograph.
The Egyptians were the first to use umbrellas as early as 1200 B.C., and Egyptian aristocrats often asked their slaves to hold parasols for them when they traveled. The Romans used umbrellas to shield themselves from the Mediterranean sun. In China, the umbrella was invented by Lu Ban's wife in 1000 B.C., and it was called a "movable house".
As early as 1831, the British scientist Faraday discovered the phenomenon of electromagnetic induction and put forward the theoretical basis of the generator. Scientists based on this discovery, from the 1860s and 1870s on electricity for in-depth exploration and research, a series of electrical inventions. 1866 German Siemens made a generator. 1870s, the actual use of the generator was introduced.
In 1882, the Frenchman De Poule discovered a way to send electricity over long distances, and the American scientist Thomas Edison set up the first thermal power station in the United States, linking transmission lines into a network. Electricity is an excellent and inexpensive new energy. Its wide application has promoted the rapid development of a series of new industries such as the electric power industry and electrical manufacturing industry. The history of mankind from the "steam age" into the "electrical age".
In 1876, settled in Boston, the United States, the Scottish Bell test telephone success, Edison and others in the Bell invention on the basis of an important improvement, so that the telephone communication soon popular in many countries around the world. 1877, the United States built the first telephone exchange.
In 1888, the German scientist Hertz discovered electromagnetic waves. The use of such electromagnetic waves, the Italian Marconi made a radio communication equipment. 1899, Marconi between Britain and France to send a successful newspaper; 1901, across the Atlantic Ocean to send a successful newspaper. The development of modern telecommunication has provided convenience for the rapid transmission of information. From then on, the economic, political and cultural ties around the world were further strengthened.
In the mid-80s of the century, German inventors Daimler and Karl Benz put forward the design of a light internal combustion engine, which is fueled by gasoline. 90's, German engineers Diesel designed a more efficient internal combustion engine, because it can use diesel fuel, also known as diesel engine. The invention of the internal combustion engine, on the one hand, solved the problem of the engine of transportation, caused a revolutionary change in the field of transportation. in the late 1800s, a new type of transportation - cars appeared. in the 80s, the German Karl Benz successfully made the first car driven by gasoline internal combustion engine. in 1896, American Henry Ford made his first four-wheeled car. At the same time, many countries began to establish automobile industries.
In 1903, the Wright Brothers made a successful test flight of an airplane, realizing mankind's dream of soaring into the sky and heralding the arrival of a new era of transportation.
The 20th century:
Laser technology: expanding the new field of scientific research
In 1960, Meiman developed the world's first practical application of the ruby laser. It marked the birth of laser technology.
In recent years, the speed of development of laser technology is very amazing, the scope of application continues to expand, such as laser preservation, laser breeding, laser medicine, laser beauty and so on, has become a popular field of scientific and technological research.
In the past, people are still at room temperature vegetables fresh brain, now the laser has easily solve this problem. For example, vegetables transported over long distances, before shipment with a laser scanning is enough, on the way to ten days eight days is still fresh as usual. The principle is very simple, when the laser energy is large, it inhibits the growth of vegetables. On the contrary, its energy is suitable for its growth conditions can be catalyzed, so laser breeding has been promoted. Laser irradiation of seeds can cause mutations in crop traits, which can improve crop yields.
Automobiles: Carrying the Age Forward
The automobile has changed the entire transportation situation of mankind, and owning an automobile industry has become the symbol of every powerful industrial country.
The automobile has gone through such a history: in 1771, the Frenchman Günew designed a steam engine tricycle; in 1860, the Frenchman Renault manufactured a coal gas-fueled automobile engine; in 1885, the Germans Bentz and Daimler each completed a locomotive equipped with a high-speed gasoline engine and three-wheeled cars equipped with two-stroke gasoline engine, and successful enterprises; in 1908, the American Ford adopted the flow of the automobile industry, and the automobile industry has become the symbol of every powerful industrial country. In 1908, the American Ford adopted an assembly line to mass-produce low-priced, high safety performance and fast Model T cars. The mass production of automobiles thus began; in 1912, the Cadillac Company introduced the electronic ignition starter car, so that women also began to love cars; in 1926, the world's first automobile manufacturing company Daimler-Benz was founded; in 1934, the first front-wheel-drive car came out; in 1940, the Great War halted the production of many automobile manufacturers, and European carmakers began to turn to the production of military vehicles; in the 50s, the Germany's Volvo's Beetle sedan became the most popular car once it was launched; from 1970 to 2000, Japanese cars became popular in Asia, and Toyota, Honda, Mitsubishi, and Nissan's extraordinarily high-tech minivans invaded the European and American markets, rewriting the monopoly of European and American brands.
In fact, the invention of the automobile led to a great improvement in human mobility, making the 20th century human beings more broad-minded and freedom-seeking.
Mobile phone: the dream of wireless communication
The dream of human beings to communicate wirelessly was realized in 1973 in New York, USA. At that time, the world's first practical cell phone volume, weighing 1.9 kilograms, is a real "big brother". 26 years later, the world's smallest cell phone was born, it is only as big as a pager, but also lighter than the first generation of cell phones.
Satellite transmission: the medium of communication zero distance
1964 is another important turning point in the history of human communication, this summer, thousands of viewers around the world through the television for the first time by the satellite broadcast of the Olympic Games in Tokyo, Japan live. This is the first time ever human beings through the television screen at the same time to watch what happened thousands of miles away, people in addition to marveling at the Olympic Games wonderful spectacular opening ceremony and a variety of competitions, but also marveled at the progress of science and technology. It was all thanks to the invention of geosynchronous satellites by Harold Rosen.
Internet: another way of communicating feelings
In the summer of 1969, the prototype of the Internet appeared in the United States, which consisted of four computer sites, one at the University of California and the other three in Nevada. in 1972, the experimenters first sent the first e-mail on an experimental network, which marked the beginning of the integration of the Internet with communications. By the 1990s, the Internet began to be converted to commercial use. the network reached its first high point in 1995, which became known as the Year of the International Internet. Driven by the wave of electronic commerce, the International Internet will have a more profound impact on human society in the 21st century.