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Ship recovers submarine cable
Workers lay a modern-day cable (above).
There are now around 250 submarine systems in operation, with another 19 due to come online in 2011.
The technology has evolved significantly since the cables of the 19th century. In 1870, the telegraph system could transmit around 10 words a minute. Today, fibre submarine cables can handle 8.4 billion words a second.
Photo credit: Cable & Wireless Worldwide