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    Re: 1421 The year China discovered longitude
    From: Trevor Kenchington
    Date: 2004 May 9, 09:19 +0000

    Geoffrey Kolbe wrote:
    
    > Well, I am not a historian. I think it would interesting and fun for some
    > members of this list to think about how the ancients might have gone about
    > this and then actually try and measure their relative longitudes using
    > methods developed individually or collectively. I even think it would be
    > interesting enough to write up the endeavor for publication.
    
    
    I thought about doing that. However, my method would start by clearing
    and levelling an "observatory" some 30 metres or more across. I have
    enough land here and without light pollution to the southward but I'm
    not about to import enough fill to get it level -- nor to spend hundreds
    of man hours with a shovel doing the levelling!
    
    Unfortunately, scaling the whole thing down would lose the precision,
    which would make the trial a bit pointless.
    
    
    Trevor Kenchington
    
    
    --
    Trevor J. Kenchington PhD                         Gadus{at}iStar.ca
    Gadus Associates,                                 Office(902) 889-9250
    R.R.#1, Musquodoboit Harbour,                     Fax   (902) 889-9251
    Nova Scotia  B0J 2L0, CANADA                      Home  (902) 889-3555
    
                         Science Serving the Fisheries
                          http://home.istar.ca/~gadus
    
    
    

       
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