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March 1st, 2009 in Google by Uncle Sha

atlantis.jpg

Aww dang, when my hopes was up, Google has debunked the recent Atlantis findings.

They said from their blog that:

Last week we saw some interesting speculation that Atlantis had been found in Google Earth. As much as we’d love for that to be the case, there is a scientific explanation for the odd markings found on the seafloor. We’ve invited two of the scientists who gathered the data that appears in Google Earth to answer some questions that came up

Google do have a good reason why.

One theory that’s gained more traction is that these marks might be the ruins of the lost city of Atlantis. If that were the case, some of the city blocks would have to be over eight miles long – that’s about fifty times the size of a city block in New York City (if you zoom in and use the measurement tool in Google Earth, you can do this comparison yourself).

True enough, if the map is right, the buildings structure would be huge. So the map is actually …

So what is it? The scientific explanation is a bit less exotic, but we think it’s still pretty interesting: these marks are what we call “ship tracks.”

Ship what … well read on

You see, it’s actually quite hard to measure the depth of the ocean. Sunlight, lasers, and other electromagnetic radiation can travel less than 100 feet below the surface, yet the typical depth in the ocean is more than two and a half miles. Sound waves are more effective. By measuring the time it takes for sound to travel from a ship to the sea floor and back, you can get an idea of how far away the sea floor is. Since this process — known as echosounding — only maps a strip of the sea floor under the ship, the maps it produces often show the path the ship took, hence the “ship tracks.” In this case, the soundings produced by a ship are also about 1% deeper than the data we have in surrounding areas — likely an error — making the tracks stand out more.

Aaah I get it now.

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