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Ocean-themed Expo 2012 opens May 12 in S. Korea
A robot fish on a scientific mission shoots lasers from its nose, its tail swinging as it swims around a tank. It's part of an effort to showcase technology at Expo 2012, which opens for three months on May 12 in Yeosu, South Korea, with a theme focused on the ocean.Organizers have coined the term "seavilization" to promote the event in this southern coastal city. It's the first expo to be held in