Spark Plug, The

Uses macrophotography, time-lapse, animation and live-action photography in discussing the history, function, complex construction and design of spark plugs and their importance to the efficient operation of internal combustion engines. Explains trends toward improved emission control and fuel economy.

Related films

Sources

  1. 16mm Filmography (legacy record) — title, format, sound, description, catalog record
  2. 16mm Filmography editors — creator