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What is a roadster? Detailed answer

Big encyclopedia for children and adults

Directory / Big encyclopedia. Questions for quiz and self-education

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Did you know?

What is a roadster?

This is the name of an open car with two or three seats and a platform for transporting goods. Such machines are also called spider.

Author: Mendeleev V.A.

 Random interesting fact from the Great Encyclopedia:

Which bridge is the longest?

This is the Akashi-Kaikyo Bridge, part of a system of bridges connecting Japan's main island of Honshu with the island of Shikoku. With a span of 1990 m, the structure is the longest bridge in the world. Pylons with a height of 282,8 m consist of two elegant steel towers connected to each other by steel structures.

Unlike European bridges, there are no aerodynamic "pockets". The bridge is designed for wind load: in case of strong wind, it can deviate from the average position by up to 27 m, which gives the bridge additional reliability.

The two longest bridges in Europe are in Scandinavia. Since 1995, a chain of bridges with a total length of 20 km has been built across the Great Belt, connecting the Danish island of Funen with Zealand. The heart of the entire gigantic structure is the East Bridge with a free span of 1624 m and a span height of 65 meters. It is not only the longest, but also the largest suspension bridge in the world. Both traffic lanes for the bridge start at 27m below the sea surface and then rise to 254m.

In June 2000, a tunnel-bridge structure 16,4 km long was put into operation for the passage of vehicles from the Swedish Öresund to Denmark. The complex was built for seven years; its main part is a two-story bridge 7,8 km long, suspended on reinforced steel cables at a height of 203,5 m.

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