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    Re: Newtons octant
    From: Michael Daly
    Date: 2007 Nov 15, 02:19 -0500

    Ted Gerrard wrote:
    
    > So what Mike, made you think this engraving was a copy of Newton's own drawing?
    
    I don't care how much the details of the drawing match the text, since
    my comments are based on the text:
    
    "In the annexed Scheme, PQRS denotes a Plate of Brass..."
    
    and in the next paragraph:
    
    "AB, is a Telescope, three or four Feet long, fixt on the Edge of that
    Brass Plate."
    
    So - why would someone willingly look forward to holding and taking
    measurements using a triangle of brass with a 3-4 foot telescope on it?
    
    
    > The full text of the 1742 RS article,
    
    You can download it, and any other RS document, from the Royal Society
    web site until the end of this month.  After that time, access is by
    subscription.
    
    > Different diagrams of Newton's only invention are included a Wikipedia article on Octants.
    
    Irony - quoting an article I wrote and for which I supplied figures
    (just check the history).  The first is from Brewster's, the second
    (detail) from the Phil.Trans. article.
    
    Newton invented more than just that instrument.
    
    
    Mike
    
    
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