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This question already has an answer here:

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?

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marked as duplicate by fooot, Simon, Ron Beyer, Jamiec, Dan Pichelman Oct 11 '16 at 16:04

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

  • $\begingroup$ 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 Oct 11 '16 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 Oct 11 '16 at 16:23
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    $\begingroup$ 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 Oct 11 '16 at 17:01
  • $\begingroup$ @kevin: Which principle of SE are you referring to? $\endgroup$ – mins Oct 11 '16 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 Oct 11 '16 at 18:29

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