How the Internet Travels Across Oceans

In the manufacturing process, the cables move through high-speed mills the size of jet engines, wrapping the wire in a copper casing that carries electricity across the line to keep the data moving. Even with teams working around the clock, it takes about four weeks before the ship is loaded up with enough cable to hit the open sea. The ship, at sea for months at a time, moves about six miles per hour, as the cables are pulled from the giant basins out through openings at the back of the ship.

Source: www.nytimes.com