Past Expo review scientific achievement highlights (1)

2010 Shanghai World Expo opens soon.

In the new world before the arrival, let us look into the past to see which scientific and technological achievements to the world from the Expo, on which scientific and technological achievements have changed people's lives, and what still in use — the past Expo review of science and technology highlights.

In 1853 the escalators on the Expo show

The 2005 World Exposition on the different features of robot unveiled

World Exposition (Expo) is to demonstrate the human in the social, economic, cultural and scientific and technological achievements in the field of international large-scale exhibition.

2010, Shanghai will host the Grand Exposition.

In the new world before the arrival, let us look into the past, looking back at the past World Expo to see which scientific achievements from the Expo on the world market.

Past Expo on the emergence of many new scientific and technological achievements have changed people's lives, there's still in play.

1851 to build first Crystal Palace

The first World Exposition in 1851 1 may hold in the United Kingdom, London.

United Kingdom Government had 4500 tons steel consumption and 30 million pieces of glass, in London's Hyde Park built the world's first Crystal Palace as the main venue of Expo. The artificial Crystal Palace, 520 m long and 30 meters high. This building now jeers, but over 150 years ago the construction of a building may not be easy, because at that time, the iron and steel industry and glass manufacturing industries are just beginning to develop. Therefore, this exhibition of Crystal Palace became the world's most luxurious building, unfortunately this historic building in the second world war destroyed by war.

1853 "dramatic" display of escalators

In 1853, the United States New York World's fair was held.

This exhibition is the most hit United States person Elisha · Otis invented the escalators. Otis "dramatic" approach demonstrated his invention of the escalators. He stood with wooden case, VAT and other goods lift platforms, when platform-everybody can see height, he ordered to cut off ropes. The audience held their breath in, and some of the eyes, and quietly prayed for him. When Otis design of safe launched the braking device, platform safely parked in situ, motionless. Then, Otis start automatic equipment, stair can be kept automatically. At this point, the audience gave him the most enthusiastic applause. He invented the automatic stairs from this are exported to countries all over the world, the construction of the skyscraper and use provides an important tool. This automatic staircase also cannot be referred to as the elevator, since it is powered by a steam engine.

[1] [2] [3] [4]