Did you take a shower this morning? That’s 30 gallons of water down the drain. Flush the toilet a couple of times? That’s another four or five gallons. Run the dishwasher, too? Add another six gallons ...

How much water do you use? Do you find out when your bill comes? Even then, do you know how many gallons are in 100 cubic feet of water? When water flows through a household water meter, a magnetic ...

In our info-obsessed culture, hackers are increasingly interested in ways to quantify the world around them. One popular project is to collect data about their home energy or water consumption to try ...