Terrestrial and Celestial Globes Volume 1: Their History and Construction Including a Consideration of their Value as Aids in the Study of Geography and Astronomy — John Shaqi
Terrestrial and Celestial Globes Volume 1: Their History and Construction Including a Consideration of their Value as Aids in the Study of Geography and AstronomyStevenson, Edward Luther
History
Terrestrial and Celestial Globes Volume 1: Their History and Construction Including a Consideration of their Value as Aids in the Study of Geography and Astronomy
Stevenson, Edward Luther
Geography -- History; Globes
The date of construction cannot be far from 1279, which is
determinable from the position of the stars engraved thereon, relative,
for example, to the equinoctial points. The maker’s name, “Mohammed ben
Muwajed el Ordhi,” appears near the constellation Ursa Major, and is
inlaid in silver. There appear, very artistically engraved, the lines
representing the principal circles, the outlines of the several
constellations, with their names, some of these being inlaid with
silver, some with gold. The equator and the ecliptic are represented on
the surface of the sphere, each by two engraved parallel lines, and are
graduated, the graduation in each instance being represented by four
short and one long line, alternating thus by fives throughout the entire
three hundred and sixty degrees. The equator is inlaid with gold, the
other circles with silver. The names of the twelve constellations in the
zodiac are alternately inlaid with gold and silver, while all star
names, except as indicated, are inlaid with silver. The constellations
represented number forty-eight, the human figures all being clad,
turning the front and right face toward the observer.
The Bibliothèque Nationale of Paris possesses two ancient Arabic globes,
one of which, neither signed nor dated, has been thought to have been
constructed in the eleventh century.[67] This was obtained by Jomard, in
Egypt, more than sixty years ago. It has a diameter of about 19 cm., is
furnished with a horizon circle, which is upheld by four semicircular
arms, these, in turn, resting upon a base composed of four flat and
rather inartistic supports. The engraving on the surface of the brass
sphere closely resembles that on the Dresden globe. A detailed
description of this globe has not been obtainable.
A second Paris Arabic globe,[68] like the preceding, belongs to the
Bibliothèque Nationale (Fig. 15). It has a diameter of something less
than 15 cm., and was constructed by Diemat Eddin Mohammed, in the year
of the Hegira 981, which in the Christian reckoning corresponds to the
year 1573.
[Illustration: Fig. 15. Globe of Diemat Eddin Mohammed, 1573.]
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