UnderseaCables
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New fiber optic cables promise to bring better, cheaper internet access to West Africa
Last summer, the lone undersea cable linking West Africa to the rest of the world was damaged, forcing Nigeria to fall back on slower and expensive satellite connections, and knocking several other countries completely offline until the cable was repaired. While that has been a relatively common occurrence to date, the chances of it happening again in the future are now considerably less likely. That's because a second undersea cable project was just completed this summer, which is the first of two more cables planned, and just the beginning of a new round of investment in the region that the U.N.'s International Telecommunications Union says will vastly increase the bandwidth available by mid-2012. As the AP reports, that additional investment in the region promises to not only increase reliability, but significantly reduce the cost of internet access as well, which currently costs nearly 500 times as much as it does in the U.S. on a wholesale level. Exactly how much cheaper it'll get remains to be seen, however, and there's also still the issue of expanding internet access further inland, where infrastructure remains spread thin and in the hands of only a few companies that tightly control access.
Researchers propose using undersea internet cables to detect tsunamis
We've heard of a few inventive ideas for detecting tsunamis, and it looks like a group of researchers from the National Oceanic and Atmospheric Administration (or NOAA) have now come up with another: put all those undersea internet cables to a second use. While they haven't moved beyond computer models just yet, the group has apparently found that voltmeters attached to the end of an undersea cable are able to detect the small electric field stirred up by tsunamis, which measure around 500 millivolts. As New Scientist reports, however, the idea does have some considerable limitations, including that it wouldn't be able to pinpoint the exact location or direction of a tsunami, and that any such system would first need to filter out noise caused by other natural events and even the cable itself. Other researchers also caution that it's just as important to develop a system to quickly pass on a warning to potentially affected areas once a tsunami has been detected.
Three undersea cables expected to be repaired by this weekend
It looks like the multitude of problems stemming from the recent slicing and dicing of five undersea cables could soon be eased significantly, with Reuters now reporting that three of the cables should be repaired by this weekend. Those include the FLAG Europe-Asia cable between Egypt and Italy and the FALCON cable system between Dubai and Oman, which are each expected to be fixed by February 10th, and SEA-ME-WE 4 cable near Egypt, which should be fixed by Saturday at the latest. What's more, while the causes for most of those cuts and outages remain a mystery, the culprit behind the cut to the FALCON cable between the UAE and Oman has now apparently been determined to be a ship's anchor, which was reportedly found abandoned near the cable. That'll likely do little to put most folks at completely at ease, however, and we're guessing they won't be until everything is back up and running, and stays that way.Read - Reuters, "Three undersea cables seen fixed by weekend"Read - Physorg, "One Internet cut explained, but four others still a mystery"[Image courtesy of I Love Bonnie]
