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Wednesday, December 30, 2020
TRACKING WITH CLOSEUPS: Clam Pollution Sensors
In Warsaw, “the main water pump has 8 clams that have triggers attached to their shells. If the water gets too toxic, they close, and the triggers shut off the city’s water supply automatically.” https://t.co/iP8EcpYR04
— Steve Stewart-Williams (@SteveStuWill) December 30, 2020
Posted at December 30, 2020 23:38