What is the purpose of the World Expo?

The purpose of hosting the World Expo is often to celebrate major historical events or important commemorative activities in a country or region, and to show the achievements of mankind in politics, economy, culture, science and technology in a certain field. Hosting the World Expo will not only bring development opportunities to participating countries, expand international exchanges and cooperation, and promote economic development, but also create huge economic and social benefits for the host country, publicize and expand its popularity and reputation, and promote social prosperity and progress.

In 185 1 year, Britain held the first World Expo in the Crystal Palace. At that time, more than ten countries participated in the Expo, which opened the curtain. Automatic chain spinning machines, high-power steam engines, rail steam tractors, high-speed steam boats, steam engines, cranes, machine tools and advanced steelmaking methods, tunnels and bridges have all appeared;

Concrete, steel, aluminum products and rubber were exhibited at the 1855 Paris World Expo.

At the 1862 London World Expo, artificial dyes invented by Germans for dyeing cloth were exhibited.

At the 1867 Paris World Expo, new industrial products such as electric lighthouses, submarine cables, hydraulic lifts and ball bearings made their debut.

Power loom, water pump, axle, cable, locomotive, printing machine, typewriter, multiplex telegraph, etc. All of them were exhibited at the Philadelphia 1876 World Expo.

1878 At the Paris World Expo, various new inventions were colorful, such as Bell's telephone, Edison's phonograph, freezer and so on, all of which were epoch-making inventions of mankind.

1889 A new type of photographic film with continuous display and clear images was exhibited at the Paris World Expo. Later generations invented the film machine with this technology. A variety of new industrial products such as steam engines and motors were also exhibited;

At the 1893 Chicago World Expo, the invention and application of electricity became the most dazzling "star" of this World Expo. For the first time, the Electronic Museum used AC power generation system to provide lighting electricity. 6.5438+0.2 million light bulbs were used, and letters and graphic shapes were blown out with glass tubes, which was the first time that neon lights appeared.

1900, the World Expo "Looking Back at the Century" was held in Paris. The subway was introduced, the scientific and technological achievements of 19 century were displayed, and large generators and radios were exhibited.

1904 aircraft and radios exhibited at the St. Louis World Expo in the United States;

1933, Chicago, USA hosted the World Expo for the second time. For the first time in the history of the World Expo, the theme was "a century's progress". The remarkable exhibit at the World Expo is the achievement of aviation research-Professor Auguste Picard's hanging basket balloon rose to an altitude of 480,000 feet;

1939 to 1940 At the World Expo in new york, USA, tape recorders, televisions, television cameras, nylon and plastic products appeared.

The spacecraft was first exhibited at the professional World Expo in Seattle, USA, in 1962, which indicated that human beings have been able to leave Mother Earth and enter the universe with the help of high-tech power.

Osaka World Expo 1970 and Tsukuba Science and Technology Expo 1985 show the audience the development and achievements of Japan in various aspects after World War II.

1986, the newly developed communication products were exhibited at Vancouver Professional Expo.

1993 World Expo Daejeon, Korea, fully demonstrated the rapid development of the Korean economy;

The exhibition of the 2000 Hanover World Expo shows that human beings use the power of science and technology to challenge the future and live in harmony with nature, revealing the new relationship among human beings, nature and technology.

Look at these. They mean a lot.