Google's Atlantis Discovery Explained

Google has taken to its official blog to further explain why those funny markings found off the coast of Africa are not the lost city of Atlantis. The company has enlisted two scientists, David Sandwell of Scripps Oceanography and Walter Smith of the National Oceanic and Atmospheric Administration, who are responsible for the imagery in Google Ocean, to help explain away the Atlantis rumors. And while their explanation is not as exotic as discovering an ancient civilization, it's still worth taking a look at.
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http://www.pcworld.com/article/160088/googles_atlantis_discovery_explained.html