|MadSci Network: Engineering|
Hello, For detailed information on how radar works, an article written by Bruce J. Schryver, Ph.D is available at http://hometown.aol.com/saftdoc/index.html I work with an officer who runs radar and asked him how it works. Basically, an officer that is stationary can point a radar gun at an oncoming vehicle, and the gun will accurately register the speed of the car. When the gun is pointed at a group of cars, the gun will register a speed and the officer must determine the speeding car by sight. Officers following speeding cars "pace" the offending vehicle and can determine the vehicle's speed in this manner. The newest technology utilizes lasers. An officer can point a laser beam on the speeding car's license plate and determine it's speed very accurately, even out of a group of vehicles. So be careful driving and no speeding! Dale L. Laux Forensic Scientist
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