How do Police Radar Guns Work?
Police radar guns work by pointing the gun at a moving a vehicle. When a radio wave is sent out the gun measures how long it took to go out and come back. While the math is there so is the speeding ticket because these are accurate to within +/- 1 to +/- 2 miles per hour. You can find more information at http://www.radarguns.com/how-radar-guns-…