Have you ever heard robot fish? Scientists will put some robot fishes into the seas near Spain. These robot fishes will help people detect (探测) the pollution in the water. If the robot fishes are able to finish their work successfully, the team of scientists hopes to put the fishes into rivers, lakes and seas around the world.
The fishes are about 1.5 meters long and look like carps (鲤鱼). There will be a detector in their bodies. They can find the sources of pollution in the water, and then the robot fishes will eat part of it. Unlike other robots, they don’t need to be controlled by people far away. The robots all have an eight-hour battery. They can “swim” in the sea freely and send back information to people on the beach. After their batteries die, they will return by themselves.
There are five robot fishes altogether now. Each costs about 29,000 dollars. They are part of a three-year project between engineering company BMT Group and Essex University in southeastern England.
“We designed the fishes creatively. We hope the robot fishes can find the changes in the seawater and report back the information,” said Professor Hu of Essex University. His team is developing the fishes.