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Laser-like sensors could sniff out hidden explosives

London, June 7 (ANI): A physicist has developed a device capable of sniffing out hidden explosives such as TNT.

Graham Turnbull, a physicist at the University of St Andrew's in Fife, UK, and colleagues have developed a device that uses a film of polyfluorene, a plastic that emits laser light when bathed in photons.

Additionally, its reaction with vapours given off by TNT reduces the amount of coherent light the film produces, revealing the presence of the explosive.

According to the New Scientist, it can detect the explosive at concentrations of less than 10 parts per billion in a matter of seconds, and uses a blast of nitrogen gas to clean the film and reset the sensor.

According to the developers, a device like this could be used in a remotely controlled robot. (ANI)

Scientists use sensors to rehabilitate rainforest in Australia

Washington, June 13 (ANI): Scientists are using sophisticated sensors to measure leaf wetness, soil moisture and temperature to help rehabilitate rainforest in the Springbrook World Heritage precinct in south-east Queensland, Australia.The CSIRO sensors are being used to uncover the microclimatic conditions favourable for rapid natural regeneration of degraded rainforest environments.A network of ten sensor nodes, connected wirelessly, has been sampling parameters such as rainfall, humidity, temperature, soil moisture and the amount of available light inside the forest every five.....
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