black box vs effect

black box

noun
  • A theoretical construct or device with known input and output characteristics but unknown method of operation. 

  • A flight recorder; the brightly colored cockpit voice recorders and flight data recorders in an aircraft designed to aid in determining the cause of an accident. 

  • A device used in phreaking that prevents the calling party from being billed for the call placed. 

  • A type of theater characterized by a lack of decoration or complex mechanisms. 

  • Any similar device on motor vehicles, such as rail event recorders and ship trip recorders. 

verb
  • To focus on the inputs and outputs without worrying about the internal complexity. 

effect

noun
  • Execution; performance; realization; operation. 

  • The result or outcome of a cause. 

  • An illusion produced by technical means (as in "special effect") 

  • Belongings, usually as personal effects. 

  • Consequence intended; purpose; meaning; general intent; with to. 

  • The state of being binding and enforceable, as in a rule, policy, or law. 

  • A scientific phenomenon, usually named after its discoverer. 

  • An alteration, or device for producing an alteration, in sound after it has been produced by an instrument. 

  • Impression left on the mind; sensation produced. 

verb
  • To make or bring about; to implement. 

How often have the words black box and effect occurred in a corpus of books? (source: Google Ngram Viewer )