MSU's robofish glides for miles, monitoring pollutants
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An earlier version of MSU's robot fish based on the yellow perch (Photo: Xiaobo Tan)
Grace, MSU's robot fish, pumps water in out and out of its body to control its buoyancy (Photo: Xiaobo Tan)
Grace may look more like a '50s space ship than a fish, but that's by design (Photo: Xiaobo Tan)
Grace takes a dip in a swimming pool as part of its regular testing (Photo: Xiaobo Tan)
Grace took to the Kalamazoo river in late 2012 (Photo: Xiaobo Tan)
The robot fish sends sensor readings over a wireless connection when it surfaces (Photo: Xiaobo Tan)
Grace's battery serves as a sliding weight inside its fuselage, causing it to dive or surface (Photo: Xiaobo Tan)
Students at MSU's Smart Microsystems Lab work on a robot fish called Grace (Photo: Xiaobo Tan)
Article Summary
A new species of robot fish has been spotted in the Kalamazoo River in the state of Michigan, where more than a million gallons of oil spilled in July 2010. Developed primarily by Xiaobo Tan, an associate professor at Michigan State University (MSU), the robot's sensors detected crude oil at various sites along the river.
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