Photo: Flickr, CC I Feel a Great Disturbance in the Force Finding new uses for equipment that you already have is always satisfying (at least to engineers). One very cool example of this is the use of cell phone towers to measure rainfall in real-time; the rain interferes with the radio signals, and this interference can be measured with "greater spatial resolution than traditional point measurements provided by rain gauges." How is this green? Well, in general it could provide better data about our planet and cha...Read the full story on TreeHugger