News tagged with metal detector

US House votes to renew all-plastic gun ban (Update)

The U.S. House of Representatives voted Tuesday to renew a 25-year-old prohibition against firearms that can evade metal detectors and X-ray machines just as 3-D printers are increasingly able to produce plastic weapons.

dateDec 03, 2013 in Other
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Ultrasensitive photon hunter

When it comes to imaging, every single photon counts if there is barely any available light. This is the point where the latest technologies often reach their limits. Researchers have now developed a diode ...

dateNov 07, 2012 in Engineering
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