The Pulfrich Effect:  Canales (2001) on Wolf's Battles
      
  Canales, J.  The Single Eye:  Reevaluating Ancien Regime Science.
     History of Science, 2001, 39, pp. 71 - 94 (in press).
  
  Copyright (c) 2001, Science 
  History Publications, Ltd.
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   Synopsis:
   Charles Wolf, at the Paris Observatory, held the opinion that individual 
   differences among astronomical observers could be reduced or eliminated 
   by training them to record events in standardized ways.   An opponent,
   Herve Faye of the Bureau des Longitudes, held that mechanization was
   the solution.   Wolf admired and imitated Cassini, an astronomer who, in
   the Revolutionary period, attempted at great risk to keep the Observatory
   independent of central government.
   These excerpts describe how the personal equation was involved in the
   struggles for control which ensued.  At risk was safe navigation for
   shipping, an enormous economic and military factor in those early years
   of steam propulsion.
  
   Excerpts on Personal Equation:
   
  
    
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   The Pulfrich Effect, SIU-C. Last updated 2001-04-17