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Stories about: ultraviolet light

How Fluorescent Lamps Work You can find them mostly anywhere today, they are highly efficient, give off a pleasant white light and, for some strange reasons, people always call them neon lights. Fluorescent lamps produce light by discharging an electrical current inside a mass of gas which becomes excited and starts emitting photon particles o... 7 June 2008 06:57 GMT Glowing Films Reveal Nitrogen Explosives Most explosive detection methods require scientists to run them. The new method developed at the University of California San Diego however is very intuitive, meaning it's pretty much fool-proof, portable and able to detect traces of nitrogen-based explosives in very short amounts of time. Samples can be tested ... 26 May 2008 04:36 GMT