http://www.futurity.org/science-technology/house-acts-as-its-own-antenna/ House acts as its own antenna A sensor that uses a home's electrical wiring as a giant antenna has the potential to run for decades on a single watch battery. (Credit: Gabe Cohn) U. WASHINGTON (US)— Scientists have developed a device that uses a home's electrical wiring as a giant antenna. The sensors use the wiring to transmit information to and from almost anywhere in the home, allowing for wireless sensors that run for decades on a single watch battery. Low-cost sensors recording a building's temperature, humidity, light level, or air quality are central to the concept of a smart, energy-efficient home that automatically adapts to i...
life, from my point of view :)