Why some cities turn off the water pipes at night

For more than a billion people around the world, running water comes from “intermittent systems” that turn on and off at various times of the week. A new paper by University of Toronto Engineering professor David Taylor proposes a simple, yet powerful model to explain why and how these systems come to be—and how they fit into the global challenge of meeting international targets for human development and safe drinking water.


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Source: Phys.org