Detecting Nuclear Weapons Using the Cell Phone Network
Okay, this is clever:
Such a system could blanket the nation with millions of cell phones equipped with radiation sensors able to detect even light residues of radioactive material. Because cell phones already contain global positioning locators, the network of phones would serve as a tracking system, said physics professor Ephraim Fischbach. Fischbach is working with Jere Jenkins, director of Purdue’s radiation laboratories within the School of Nuclear Engineering.
Tiny solid-state radiation sensors are commercially available. The detection system would require additional circuitry and would not add significant bulk to portable electronic products, Fischbach said.
I’m not convinced it’s a good idea to deploy such a system, but I like the idea of piggy-backing a nationwide sensor network on top of our already existing cell phone infrastructure.