Archive: 10/5/2010

A hot new look at working fuel cells

Measuring a fuel cell's overall performance is relatively easy, but measuring its components individually as they work together is a challenge. That's because one of the best experimental techniques for investigating ...

Oct 05, 2010 4.2 / 5 (5) 0 | with audio podcast

Report questions biometric technologies

Television cop shows love "biometric" technologies -- fingerprints, eye scans and so on -- but a blue-ribbon panel report calls for caution on widespread use of biological identification.

Oct 05, 2010 5 / 5 (3) 0