"The clean side of the disc was decorated with a coat of arms and the esfera armilar (armillary sphere
), which identified it clearly as Portuguese in origin.
A reference to Kangxi's enthusiasm for Western astronomy, the design of the cone is inspired by an armillary sphere
created to represent the movements in the heavens.
So a box decorated with planetary symbols that was produced in either 13th century Egypt or Syria depicts Venus playing the oud, while an armillary sphere
stands in a 17th century tapestry of Chinese astronomers.
Starting with the display of Vincenzo Coronelli's majestic globes and Jerome Martinot's armillary sphere
, the artists Jean-Luc and Patricia Boivineau have created an artistic vision of the stars and constellations which can be seen in Abu Dhabi's sky during the winter season.
On the other side of the world, the Chinese also stood out for their development of highly complex machines-such as the famous hydraulic clock created by Su Song (1086), topped by an "armillary sphere
" representing the orbits of the sun, the moon and certain stars as seen from Earth.
One item of interest in support of an early interest is the armillary sphere
(or astrolabe) that he included in what is historically the first depiction of a perspective window for projecting accurate views of three-dimensional objects (Figure 1).
Patterns of birds (e.g., martlet, pelican, egret, crane, swan, crow, and night owl), figures, aquatic animals (e.g., fishes and seashells), flowers and plants (e.g., lilies, clover leaves, and trees), utensils (e.g., cross, weapons, musical instruments, sailing vessel, crown, helmet, and castle), heavenly bodies (e.g., armillary sphere
, stars, new moon, and sun), and characters or geometric figures (block plane, stripes, zig-zag, and saw-tooth), are always bordered with various ornaments such as crests, upholders, and inscriptions, particularly in the form of plants.
The second depicts Atlas on one knee supporting an armillary sphere
, while the third (Figs.
I enjoyed being able to compare a medieval cosmography showing a pair of angels rotating the machina mundl using hand-cranks with the complex armillary sphere
some 200 pages later by Apianus.
The watch is also an astronomical navigator, an armillary sphere
(machine of the world), a radix chart, time travel machine, solar system simulator and eclipse detector.
Nearby, an altazimuth--used to determine celestial angles--sits next to an armillary sphere
and a detailed celestial globe.
In the case of the armillary sphere
, used for measuring the longitude of any star, he notes that we must first have the coordinate of a reference star.