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Google and Facebook lay thousands of miles of undersea cables to ferry internet around the world. Here's how they do it.

Added 09-19-21 05:14:03am EST - “Laying thousands of miles of internet cable requires a specialized vessel and an underwater plow the height of a two-story building.” - Businessinsider.com

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Posted By TheNewsCommenter: From Businessinsider.com: “Google and Facebook lay thousands of miles of undersea cables to ferry internet around the world. Here's how they do it.”. Below is an excerpt from the article.

Jayne Stowell, strategic negotiator for Global Infrastructure at Google, told Insider planning the route can take up to a year.

To do this, it sends out vessels equipped with sonar to map out the seabed and look for risks such as high currents, underwater landslides, and unexploded bombs or mines.

"A plastic and steel sheathing is then added to waterproof the cable and help it withstand potentially adverse ocean conditions such as heavy currents, earthquakes or interference from fishing trawlers," Stowell said.

2Africa is in the process of being laid around the entire continent and is 37,000 kilometers long — only slightly shorter than the circumference of the Earth.

Google's Stowell said the company uses a fleet of 50 to 55 specialised laying vessels, with capacity for up to 100 crew members. Just loading the cable onto the ship can take four weeks, she said.

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