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This is Scientific American 60-Second Science. I'm Sophie Bushwick. Got a minute?

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About six million people worldwide post to Twitter, producing some 650,000 new tweets daily.

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And one percent of these posts include geographic locations.

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The combination of language and location has allowed scientists to calculate the dominant language of any given region.

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They presented their work at the American Physical Society's March Meeting.

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The researchers gained free access to a tenth of all tweets, which they ran through an automated language detector.

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Throwing Twitter languages onto a map revealed highly accurate borders for European countries, a good proof of concept for the effort.

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On a much smaller scale, Twitter language geography reflected the small pockets of Korean and Russian concentrations within New York City.

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The Twitter tracking method has its biases.

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English is the dominant language of the internet, which skews the language distribution in bilingual cities like Montreal.

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And, obviously, the scientists can't analyze areas where people don't use Twitter.

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But overall, the study shows that Twitter can provide cheap and useful information.

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In other words, people tend to speak what they Tweet.

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Thanks for the minute, for Scientific American 60-Second Science. I'm Sophie Bushwick.

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