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    The Martian
    From: Richard B. Langley
    Date: 2015 Nov 14, 11:15 -0400

    From: "Taking Position: Solving PNT Problems on Mars" 
    "One sequence in the book describes Watney's ingenuity in solving a navigation 
    problem in a truly GPS-denied environment, with only the limited supplies he 
    has on hand. I don't want to spoil anything, but I will say that the solution 
    includes old-school triangulation, with a few twists. With a fierce dust 
    storm bearing down on him, Watney employs his knowledge of position, 
    navigation and timing to aid in his own rescue. I was reminded of this as we 
    at GPS World embark on our own adventure, reimagining our scope to include 
    PNT and other location technologies. GPS, while still in our name, is far 
    from the only solution.
    "While the movie is excellent, I suggest anyone who's fascinated by the 
    science in fiction pick up a copy of the novel that inspired it."
    -- Richard Langley
    | Richard B. Langley                            E-mail: lang---.ca         |
    | Geodetic Research Laboratory                  Web: http://gge.unb.ca/     |
    | Dept. of Geodesy and Geomatics Engineering    Phone:    +1 506 453-5142   |
    | University of New Brunswick                   Fax:      +1 506 453-4943   |
    | Fredericton, N.B., Canada  E3B 5A3                                        |
    |        Fredericton?  Where's that?  See: http://www.fredericton.ca/       |

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