The longest cable is about 24,000 miles long. It extends from Germany to Korea and even further south to Australia, hitting 39 different landing points along the way.
What is the longest undersea cable?
SEA-ME-WE3 or South-East Asia – Middle East – Western Europe 3 is an optical submarine telecommunications cable linking those regions and is the longest in the world.
How long is the longest cable-stayed bridge?
The world’s longest cable-stayed bridge is the 2,680m (main span) JiaShao Bridge spanning the Qiantang River at the mouth of Hangzhou Bay in China. The bridge forms part of the 69.5km Jiaxing-Shaoxing River-crossing Expressway and consists of eight traffic lanes.
Where is the longest cable-stayed bridge in the world?
The Sutong Bridge arcs across a 6-kilometer-wide stretch of the mighty Yangtze River 50 miles upstream from Shanghai. Measuring 8.2 km overall, its main span is the current world record-holder for a cable-stayed bridge.
How long is the longest fiber optic cable?
The longest un-regenerated terrestrial fibre optic link is 10,358.16 km (6,436.26 mi) and was achieved by Telstra Corporation (Australia) with their link between Perth and Melbourne, Australia, as verified on 13 February 2015.
Are submarine cables still used?
Today, there are around 380 underwater cables in operation around the world, spanning a length of over 1.2 million kilometers (745,645 miles). … Yet as the internet has become more mobile and wireless, the amount of data traveling across undersea cables has increased exponentially.
Are there phone lines under the ocean?
A submarine communications cable is a cable laid on the sea bed between land-based stations to carry telecommunication signals across stretches of ocean and sea. … Modern cables use optical fibre technology to carry digital data, which includes telephone, Internet and private data traffic.
What are the disadvantages of a cable stayed bridge?
List of the Disadvantages of Cable Stayed Bridges
- Cable-stayed bridges do have a maximum length to consider. …
- This design option can become unstable in specific environments. …
- Cable-stayed bridges can be challenging to inspect and repair. …
- It is a design that can sometimes be susceptible to rust or corrosion.
29 мар. 2019 г.
How much does it cost to build a cable stayed bridge?
The modern yet simple appearance of the cable-stayed bridge makes it an attractive and distinct landmark, making it the bridge type of choice of many agencies today. The typical cost of a cable stayed bridge ranges from $4,500 to $5,000 US per square meter.
What keeps an arch bridge from falling down?
The more weight that was put onto the bridge, the stronger its structure became. Masonry arch bridges use a quantity of fill material (typically compacted rubble) above the arch in order to increase this dead-weight on the bridge and prevent tension from occurring in the arch ring as loads move across the bridge.
What is the largest suspension bridge in the world?
By total length the Mackinac Bridge, at 5 miles long, remains one of the longest bridges of its kind. By comparison, the Akashi Kaikyō Bridge in Japan, which is currently considered the longest suspension bridge in the world with a main span length of 6,532 ft, is less than 2.5 miles long in total length.
What is the longest bridge in world?
Danyang–Kunshan Grand Bridge
It is the world’s longest bridge. The bridge is located on the rail line between Shanghai and Nanjing in Jiangsu province. It is in the Yangtze River Delta where the geography is characterised by lowland rice paddies, canals, rivers, and lakes.
What is the world’s longest arch bridge?
Completed bridges
| Rank | Name | Country |
|---|---|---|
| 1 | Ping’nan Third Bridge | China |
| 2 | Chaotianmen Bridge | China |
| 3 | Lupu Bridge | China |
| 4 | Bosideng Bridge | China |
Who has the largest fiber optic network?
One of the pioneering fiber optic companies in the US is Corning Incorporated (NYSE: GLW). Corning Inc. is a New York-based cable and tech company, is one of the largest fiber optic cable providers in the US and global market.
What is the longest cable in the world?
Tuesday, May 6, the longest high-voltage cable in the world was successfully put into operation: the NorNed cable between the Netherlands (Eemshaven) and Noorway (Feda), with a length of 580 km.
How far can Fibre optic cable go?
Modern fiber optic cables can carry a signal quite a distance — perhaps 60 miles (100 km). On a long distance line, there is an equipment hut every 40 to 60 miles.