thunder and lightning

Now this is just genius. It's a set up which is designed to respond to the unique relationship between the Norman Y. Mineta San Jose International Airport and downtown San Jose, CA. Basically, the custom built sensors in the coconuts (above) are hung from trees at several public locations to monitor noise produced by overflying aircraft. 'Detection of excessive aircraft noise triggers automated telephone calls to the airport's complaint line on behalf of the city's residents and wildlife. Documentation of noise incidents is archived for later analysis.'