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  2. Explosive detection - Wikipedia

    en.wikipedia.org/wiki/Explosive_detection

    The use of colorimetric test kits for explosive detection is one of the most simple methods for officers, and widely used method for the detection of explosives. Colorimetric detection of explosives involves applying a chemical reagent to an unknown material or sample and observing a color reaction .

  3. Explosives trace detector - Wikipedia

    en.wikipedia.org/wiki/Explosives_trace_detector

    The explosive trace detectors utilizing AFPs, known as Fido Explosives Detectors, were originally developed under the Defense Advanced Research Projects Agency (DARPA) Dog’s Nose program and is now produced by FLIR Systems. The current generation, provides broad-band trace explosive detection and weighs less than 3 lbs.

  4. Fido explosives detector - Wikipedia

    en.wikipedia.org/wiki/Fido_Explosives_Detector

    Blind field tests for the Fido explosives detector first took place at a DARPA facility at Ft. Leonard Wood, MO in order to evaluate the performance of the device compared to that of trained canines. During the trial, landmines were planted in the test field with two flags approximately 50 cm apart indicating the location of each test position.

  5. Residents told to check bins after teen stab death

    www.aol.com/residents-told-check-bins-teen...

    Officers are keen to locate a mobile phone which may have been dumped nearby [BBC] Police have asked villagers to check their bins for evidence after a 19-year-old man died following a stabbing.

  6. FAA announces temporary restrictions on drone flights in New ...

    www.aol.com/faa-announces-temporary-restrictions...

    The Federal Aviation Administration issued temporary flight restrictions prohibiting drone flights over parts of New Jersey following an influx of sightings in recent weeks. The notice, which ...

  7. Gunfire locator - Wikipedia

    en.wikipedia.org/wiki/Gunfire_locator

    Boomerang, a gunfire locator, being used by British forces in Afghanistan Shooting Detector Diagram. A gunfire locator or gunshot detection system is a system that detects and conveys the location of gunfire or other weapon fire using acoustic, vibration, optical, or potentially other types of sensors, as well as a combination of such sensors.

  8. 10 Old Tech Gadgets Worth a Pretty Penny Today

    www.aol.com/finance/10-old-tech-gadgets-worth...

    This Motorola phone that doubled as a weapon (hence the name “brick phone”) was the first official cellphone to succeed the beeper. Released in 1983, it came with a hefty price tag of nearly ...

  9. Capacitive sensing - Wikipedia

    en.wikipedia.org/wiki/Capacitive_sensing

    The stray capacitance can be held relatively constant by shielding the (high impedance) capacitance signal and then connecting the shield to (a low impedance) ground reference. Also, to minimize the unwanted effects of stray capacitance, it is good practice to locate the sensing electronics as near the sensor electrodes as possible.

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