University of Adelaide research may help in the fight against terrorism with the creation of a sensor that can detect tiny quantities of explosives with the use of light and special glass fibres.

A research team at the Georgia Tech Research Institute (GTRI) has developed a small electronic sensing device that can alert users wirelessly to the presence of chemical vapors in the atmosphere. The technology, which could be manufactured using familiar aerosol-jet printing techniques, is aimed at myriad applications in military, commercial, environmental, healthcare and other areas.

The notion that a temperature can be exactly X is erroneous, in the strictest sense of accuracy. In reality, all measurements are subject to uncertainty, and a measured value is only complete if it is accompanied by a statement of the associated uncertainty.