ILLUSTRATION NY Times Style Magazine Multiple Choice Popular Mechanics Homeowners Clinic Popular Mechanics Dear Darpa... Popular Mechanics Tankless Water Heater Popular Mechanics Tracking Tractors Popular Mechanics Tunnel Vision   May 2005. Illustration for Popular Mechanics Magazine. (click on image to enlarge) An illustration showing the technological advances made in tractor trailers. Todays truck are equipped with sensors that manage cargo, monitor driving and even GPS devices that allow fleet managers to know the exact location of a truck and get better estimates of departure and delivery times.