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Results 91 - 93 of 93 for Air traffic control
  • Article - 7 Aug 2015
    This article looks at how driver alertness can be affected by poor air quality.
  • Article - 15 Jun 2013
    A radar gun is a device for measuring the speed of moving objects. Invented by Bryce K. Brown in 1954, the radar gun is often used in law-enforcement purposes to calculate the speed of moving...
  • Article - 27 Nov 2012
    The attempt to control traffic was first demonstrated during the Roman empire. This article discusses the evolution of traffic control systems to the modern day where we are starting to see...