NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: h.a.c. van Asten
Date: 2012 Apr 7, 23:40 -0700
A nice before-electronic calculation example is : The Simplex Navigation and Avigation Tables (Oficina de Artes Graficas , Ponta Delgada , St.Michael´s Island , Azores) by Juan Carlos Pinto , 1933 . His son at the age of five started to assist with the tabular computations , establishing the decimals by operating the lever of a simple mechanical calculator . Pinto the older registers that his son got literally grown up with the work lasting a decennium . H .
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