Newly Invented Jet

Discussion in 'Jet Drives' started by Ximing Huang, Jun 7, 2012.

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  1. SamSam
    Joined: Feb 2005
    Posts: 3,899
    Likes: 200, Points: 63, Legacy Rep: 971
    Location: Coastal Georgia

    SamSam Senior Member

    As far as I can tell, it sounds like a perpetual motion machine or my dog chasing her tail.
     
    SamSam, Aug 15, 2012
    #16

  3. magny7
    Joined: Jan 2010
    Posts: 33
    Likes: 0, Points: 0, Legacy Rep: 10
    Location: Surabaya

    magny7 Junior Member

    From engineering stand point, it could be done. But from Economics, it would be wildly inefficient. If you skating, it is wiser to propel yourself by swaying your body than to blow wind from your mouth backward
     
    magny7, Dec 1, 2012
    #17
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