This project's objective is to use new technologies to allow for remote ice-thickness testing. Encapsulated detectors are mounted in high visibility rubber duckies have been deployed, their data bursts, or "quacks" can be monitored here (link). Each foam-filled and weatherized rubber ducky is equipped with batteries, a radio, a tiny computer, and a probe for measuring the thickness of the ice. Whenever a ducky "quacks", it sends the data from its probe out over radio to a basestation and to this(link) webpage. The ducky probe measures the thickness of the ice by reading out the impedance (wiki link?) and temperature of the water in 1/4" vertical increments starting at the water's surface to four inches below. Read more about characteristics of water and ice here (link)