Which day-to-day example would you use to explain a person (who is not involved into the aviation sector) how does a jet engine work? Would objects such as a hairdryer, a vacuum cleaner or a fan be appropriate?

  • $\begingroup$ Blow up a balloon and let go. Air rushes out of the back. Newton tells us that every action has an equal and opposite reaction; the balloon goes the other way. How does a jet engine get air to rush out of the back? It compresses it, injects fuel and burns it. It burns very quickly and expands. The only place it can expand it out of the back so it rushes out of there are the jet goes in the opposite direction. A jet engine is just another internal combustion engine using suck, squeeze, bang, blow $\endgroup$
    – Simon
    Commented Oct 11, 2016 at 15:51
  • $\begingroup$ I posted an additional answer specifically for you here. This answer is in very simple words, but accurate. To me this question should not be closed, it targets a different level of explanation than the duplicate. $\endgroup$
    – mins
    Commented Oct 11, 2016 at 16:23
  • 1
    $\begingroup$ I vote for leaving this question closed. If the existing answers of a question are not "simple enough", then new answers (or edits) should be added to address a wider audience. $\endgroup$
    – kevin
    Commented Oct 11, 2016 at 17:01
  • $\begingroup$ @kevin: Which principle of SE are you referring to? $\endgroup$
    – mins
    Commented Oct 11, 2016 at 17:26
  • $\begingroup$ @mins generally we have a few answers to a question, and sometimes a "TL;DR" section and a detailed section within the same answer. That's my impression anyway - questions are based on topics, not audience levels. $\endgroup$
    – kevin
    Commented Oct 11, 2016 at 18:29


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