Red Ink and Rewrites Too

Duplicates online comments, to keep track.

Library of Congress holds conference on the origin of portolan charts

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Perhaps the result of Arabic research, i.e., Ibn-al-Hatham spherical trigonometry, earliest known lens, created new mathematics in the West, the influence of “Muhammad al-Idrisi, circa 1100–1166, Moorish geographer and polymath who drew the Tabula Rogeriana, the most accurate world map in pre-modern times.” Wikipedia entry: “Moors”

Idrisi is a modern computer GIS (geographical information system) mapping program suite developed at Clark Labs at Clark University in Worcester, Massachusetts. Student-priced versions are available.  It is used by many organizations and countries, including the United Nations. I once used parts of it for archaeology mapping for EPA Superfund National Priorities, in the early 1990s. The university I think is where both MD’s, Sigmund Freud and Carl G. Jung were given honorary doctorates.

Library of Congress holds conference on the origin of portolan chartsWashington Post Saturday, May 22, 2010

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Written by georgejmyersjr

05/22/2010 at 9:48 pm

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