>              SWEDENBORG ON LONGITUDE
>    In 1721 (Baron) Emanuel Swedenborg published a simple
> method for finding longitude from the moon.  It is known
> that he personally discussed it in London with Royal
> Astronomer Flamsteed and Edmond Halley.  Apparently neither
> of them thought it erroneous or incompetent.
>    Swedenborg of course later became world famous for
> publishing visionary theological speculations.  According to
> me he had a schizophrenic reaction at the age of 55 and gave
> up routine science to conduct the world's first scientific
> investigation of schizophrenic visions, and which resulted
> in his celebrated book _Heaven and Hell_; the world's most
> famous quasi-technical description of Life After Death.
>    What I want to know, is how brilliant a scientist and
> mathematician was he before he became fascinated with mental
> phenomena?  To wit; how competent and workable was his
> proposed method of finding Longitude by:
>        "observing the moon between two stars"
> as described at: ...