Swan robots take care of the quality of Singapore's drinking water, BBC reported.
According to Channel News Asia, five similar birds are placed in city-state tanks to monitor water quality as part of the Smart Water Assessment Network (SWAN) project.
They are designed to look like real swans to infuse their surroundings.
While being gracefully carried on the surface, the robots below have a propeller system and water sampling equipment.
They use wireless technology to send the results in real time to the national water agency PUB.
image source - pixabay.com
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