Highway 407 is the only toll road in Ontario, Canada. It runs north of the Greater Toronto area from Burlington to Clarington. The way it works is that motorists entering the highway at controlled access ramps will pass under a camera that records their licence plate. The plate will be recorded again when they exit the highway. The distance that they traveled will be calculated so that a computer generated toll bill can be sent to the registered owner of the vehicle. Frequent users can purchase a transponder and this gives them a reduced rate each time they use the route. Ever since Highway 407 opened in 1997, imaginative drivers have been devising ways to defeat the cameras and avoid paying the charges. Some motorists install licence plate covers that make their plate unreadable from an angle, yet they are transparent enough that the plate can be read from directly behind or in front. Others put dirt on their plates.

This clip features a serpentine belt in the engine house of a funicular. A funicular is a type of cable railway system along a steep slope. The system is characterized by two counterbalanced carriages, which are permanently attached to opposite ends of a haulage cable.