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    Ebay: Navigation School Workbook 1886
    From: Willem Piccer
    Date: 2006 Mar 23, 21:06 +0100
     
    "Seamen have  always detested calculations with pencil and paper, preferring
    to use  diagrammatic means."
     
    Frank Reed you wrote
     
    I consider this seriously unhistorical. Diagramatic  methods caught on VERY
    slowly in celestial navigation. There was a significant  bias in favor of
    calculation (meaning columns of numbers, added and subtracted)  in 19th century
    navigation.
     
    As far as I understand the navigator in the early times used widely diagramatic methods.
    The bias in favor of calculation came only after tables ,like traverse tables were made available to him.Calculations were made even more easy after the tables of common logarithms had been calculated.This happened around 1625-1635
    What I don't understand: do you mean that there has been a move back to using diagrams after all these tables were available?
     
    Thanks
     
    Willem Piccer
     
     
       
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