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    Re: Newton and Halley
    From: Michael Daly
    Date: 2007 Nov 15, 18:48 -0500

    Ted Gerrard wrote:
    
    > Mike Daly is simply winding us up, playing games in order to extract sources and information
    > it has taken some of us years to collect - in my own case 15 years and many thousands of �. 
    
    So you _own_ this information?  This forum (and things like Wikipedia) 
    are for sharing information, not bragging.
    
    >  Daly does not seem to know much about either Hooke's single mirrored instrument 
    > because he has drawn the horizon rays travelling straight through a solid mirror
    > http://en.wikipedia.org/wiki/Reflecting_instrument 
    
    The source I used indicates it is a half-height mirror.  Gee, where have 
    I seen one of those?  Oh yeah - my octant... and my sextant.  My octant 
    is in the photos at the bottom of the octant page - see the half-mirror, 
    half-clear horizon mirror here:
    http://en.wikipedia.org/wiki/Image:Octant_pinnula_and_horizon_mirror.jpg
    
    If you have better sources, perhaps you can share.  No wait - it's your 
    private info - even though you didn't write it.
    
    > or the principles of double reflection - he has drawn two separate rays 
    entering the telescope on Newton's instrument
    > http://en.wikipedia.org/wki/Octant_%28instrument%29 
    
    Really?  I drew that?  You mean I was alive and was the draughtsman for 
    the Royal Society?   I'm so old I forgot!
    
    For those who care about the facts, that image is taken from the Phil. 
    Trans. article and I only highlighted the existing lines with red - the 
    original lines are rather poorly shown in the pdf.  Details here:
    http://commons.wikimedia.org/wiki/Image:Newton_quadrant_detail.png
    
    > I have just spent an interesting afternoon downloading all Daly's Wikipedia 
    articles and will watch with interest to see how long he takes to 
    alter/update them.
    
    Don't be such an ass.
    
    Mike
    
    
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