Guinea
| Use attributes for filter ! | |
| Capital | Conakry |
|---|---|
| Population | 12. 72 million (2017) |
| Presidents | Alpha Condé |
| Official language | French |
| Points of interest | Fouta Djallon |
| Îles de Los | |
| Mount Loura | |
| Date of Reg. | |
| Date of Upd. | |
| ID | 682905 |
About Guinea
Guinea is a country in West Africa, bordered on the west by the Atlantic Ocean. It's known for the Mount Nimba Strict Nature Reserve, in the southeast. The reserve protects a forested mountain range rich in native plants and animals, including chimpanzees and the viviparous toad. On the coast, the capital city, Conakry, is home to the modern Grand Mosque and the National Museum, with its regional artifacts.
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... Some 112 refugees and asylum seekers currently remain on the nation island of Nauru, but a similar scheme on Manus Island in Papua New Guinea - where 120 people were detained - Rights groups and the UN have frequently criticised Australia s centres for substandard conditions...
How will Tonga's broken internet cable be mended?
... Why might it take longer? It will take time to get a cable repair boat to the archipelago and the closest one is currently stationed in Port Moresby, Papua New Guinea - about 4,700km (2,900 miles) away...
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... The three were captured in November after a fatal exchange of fire in the Gulf of Guinea...
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How will Tonga's broken internet cable be mended?
An undersea fibre-optic cable which connects Tonga to the rest of The World was severed during the Eruption of a volcano.
New Zealand 's ministry of Foreign Affairs says it could take More Than a month to repair the 49,889km (31,000miles) of cable in the South Pacific .
The undersea Eruption - followed by a Tsunami - led to Tonga 's 110,000 people being cut off.
A 2G wireless connection has been established on the main island, using a satellite dish from the University of the South Pacific . But The Service is patchy, and internet services run slowly.
How will the cable be fixed?The cable, which is operated by Tonga Cable, is believed to have broken About 37km (23 miles) offshore.
According to Reuters, fault-finding conducted by The Company in The Aftermath of The Volcano seemed to confirm a cable break.
The Process of mending it is actually quite simple, according to principal engineer at Virgin Media , Peter Jamieson, who is also vice-chairman of the European Subsea Cable Association.
" They will send a pulse of light from The Island and a machine will measure how long it takes to travel and this will establish where The Break is, " he explained.
Then a cable-repair boat will be sent to the location of The First break.
It will use either an ROV (remotely-operated underwater vehicle) or a tool known as a grapnel (basically a hook on a chain) to retrieve The Broken end.
That will be re-joined to fresh cable on board The Boat And Then the same process will happen at The Other end of The Break . If all goes well, the whole process will take between five and Seven Days .
Why might it take longer?It will take time to get a cable repair boat to the archipelago and the closest one is currently stationed in Port Moresby , Papua New Guinea - About 4,700km (2,900 miles) away.
The specialised boat, The Reliance, serves More Than 50,000km (31,000 miles) in the South Pacific .
Experts will have to determine that the area is safe for The Boat and The Crew , and that no more volcanoes are likely to erupt.
Do these cables break often?It is estimated that globally there are up to 200 repairs carried Out every year, but Natural Disasters causing them are rare. 90% of breakages come from fishing-boat nets or anchors.
Increasingly, tracking technology is being used to inform operators About any boats in areas likely to pose a danger to cables, so that they can be contacted directly to warn them.
Data cables are made up of fibre-optic strands of glass, but much of the thickness of the cable is just protective casing for the glass strands.
Cables that run over a Continental Shelf have to be buried between one and two metres deep. However, many just lie on The Ocean floor because they are too deep under The Sea for much to damage them.
The Exception to this is Natural Disasters , such as happened in Tonga . In 2006, an earthquake off the coast of Taiwan broke a cable, and led to a loss of internet and international phone services in the region.
How vital are these cables?In Western countries, if one cable breaks it is not a problem, because there are many others.
The UK, for example, has About 50 cables feeding data into the country.
In Tonga , there was just one. " Ideally you would have at least two cables as a minimum, " said Mr Jamieson. " But cables are expensive and there is no drive for Facebook, Google or anyone to build one there. "
Around The World it is estimated there are More Than 430 cables, spanning distances of 1. 3 million km (800,000 miles).
After an earlier cable Break In 2019 - from a ship's Anchor - Tonga signed a 15-year deal to get satellite connectivity. But the use of satellite phones has been affected by the volcanic ash blanketing the country. Some People have reported they can only dial Out - and not receive calls.
Because of the cost, the use of satellite phones is limited to government officials, and some businesses.
Mobile network provider Digicel has Set Up an interim system on the main island of Tongatapu, using the University of the South Pacific 's satellite dish to provide limited 2G coverage.
Source of news: bbc.com
