In this interesting description it will be seen that the Armillary Sphere [B] agrees entirely with that represented in illustration facing p.
It contains a representation of an armillary sphere, which appears to me to be much the same as the sphere in question.
At the top, the drip-mould grows into a large trefoil with crockets outside and an armillary sphere within.
Above the horizontal cornice is a most elaborate cresting of interlacing trefoils and leaves having in the middle the royal arms with on each side an armillary sphere.
In the two corners between the trefoils and the framing are circles enclosing shields, one charged with the Cross of the Order of Christ, the other with the armillary sphere.
Most of this bench is covered with tiles of Moorish design, but on the front each is stamped with an armillary sphere in which the axis is yellow, the lines of the equator and tropics green, and the rest blue.
Higher up there is a round window--heavily moulded--and the whole gable ends in a queer little round pediment set between two armillary spheres.
The panels behind the upper tier are divided by twisted Manoelino shafts bearing Gothic pinnacles, and the upper part of each panel is enriched with deeply undercut leaves and finials surrounding armillary spheres.
The round window is surrounded by large rope moulding, out of which grow two little arms, to support armillary spheres.
At the top are long finials with more chains holding corals on which restarmillary spheres.
These one would certainly take to be of Dom Manoel's time, for the armillary sphere was his emblem, but they are said to be older.
It is believed that Eratosthenes invented an important modification of the gnomon which was elaborated afterwards by Hipparchus and called an armillary sphere.
The province of the armillary sphere was to make these measurements extremely accurate.
The armillary sphere survives as useful for teaching, and may be described as a skeleton celestial globe, the series of rings representing the great circles of the heavens, and revolving on an axis within a horizon.
No material advance was made on Ptolemy's instrument until Tycho Brahe, whose elaborate armillary spheres passing into astrolabes are figured in his Astronomiae Instauratae Mechanica.
When several rings or circles were combined representing the great circles of the heavens, the instrument became an armillary sphere.
He invented, or improved armillary spheres, the chief implements of ancient astrometry, determined the obliquity of the ecliptic at 23 deg.
A collection of circles such as is the armillary sphere, if each circle were fitted with a view-tube, might be considered a complete astrolabe.
An armillary sphere of brass, with a steel meridian, whose diameter was about 4 cubits.
Terrestrial and celestial globes, as well as armillary spheres, frequently appeared on title-pages (Figs.
A Vopel armillary sphere, apparently like the preceding, bearing the same date and legends, is reported as belonging to the city museum of Salzburg.
The horizon diameter of this armillary sphere is about 21 cm.
This globe supports the several circles composing the armillary sphere.
A presentation of the particular advantages of the terrestrial, celestial, andarmillary spheres.
In the same museum there is a second armillary sphere constructed by a member of the Volpaja family, perhaps by the same one who constructed the preceding.
Graf, of a Vopel armillary sphere in the possession of the Herr Forstinspector Frey of Bern, appeared in the year 1894, in the Jahresbericht of the Geographical Society of Munich.
This is an armillarysphere of brass, the diameter of its largest or zodiacal circle being 14 cm.
It has been described as follows: "An armillary sphere, the armillae of which are of gilded brass.
The Emperor Charles V, when in Pavia, we are told, had his attention directed to an armillary sphere constructed by Dondi in the fourteenth century.
In the year 1582 he constructed a large armillary sphere composed of wooden rings, very artistically gilded and painted, representing in particular the orbits of the planets.
On the platform was an armillary sphere designed for observing the heavens.
From India there are only two references, very closely related and appearing in the best known astronomical texts in connection with descriptions of the armillary sphere and celestial globe.
We have already noted that the armillary spheres and celestial globes described just before these extracts are more similar in design to Chinese than to Ptolemaic practice.
An armillary sphere was used to represent the chief imaginary circles (e.
In the first and earliest of these occurs a description, taken from Ptolemy, of the construction of the (observing) armillary sphere.
Information has been kindly given by the director of the National Museum of Copenhagen that an exceedingly fine armillary sphere (Fig.
There appear to be but slight differences in the construction of these two armillary spheres, the one of 1624 having certain circles which are slightly smaller than are the corresponding ones on that of earlier date.
An unreliable record, telling us of the interest exhibited by the Emperor Shun, reigning more than two thousand years before the beginning of the Christian era, notes that he made use of an armillary sphere in his study of the stars.
The armillary spheres have each but four circles, being of excellent workmanship, and having mountings of elaborate Chinese designs.
Topping the piece is a small armillary sphere representing the Ptolemaic system.
We know that like his contemporary, Fortin, he also constructed armillary spheres, one example of which it has been possible to locate.
To the makers of armillary spheres in the first half of the seventeenth century there may be added the name of Adam Heroldt, a native of Germany.
This machine, he says, has a circumference of thirty-two feet, being constructed in the form of an armillary sphere.
The Atheneo of Brescia possesses an armillary sphere, having on one of its armillae an inscription which tells us that it was constructed by Gian Battista Alberti in the year 1688, for Count Martinengo.
In the Biblioteca Estense of Modena there may be found three armillary spheres apparently of about the same date as the two just described.
The Biblioteca Barbarini of Rome possesses four armillary spheres, all appearing to be of the early seventeenth century.
And in a later letter he speaks "of thearmillary spheres drawn by our common friend Albert Dürer.
The armillary sphere[2] seems to me poorly designed and in bad proportion.
The imaginary circles traced on the celestial sphere, and figured in the armillary sphere by metallic circles, are called culures.
The armillary sphere is a group of pasteboard or copper circles, to illustrate the orbits of the planets, and their position in relation to the earth, which is represented by a small wooden ball.
But as I had to take care lest my father should find out how I had been occupied, I always hid my armillary sphere in a corner behind the cupboard before I went to bed.
Tools in bronze and iron were fashioned closely after the models of tools of stone; astrolabes and armillary spheres were first built on geometric spheres and circles; and science was then laid away for the slumber of the Dark Ages.
The artisans of that day began to build rude mechanical adaptations of the geometric conceptions as concrete constructions in wood and metal, and it became the epoch of the origin of astrolabes and armillary spheres.
There were astrolabes and armillary spheres, with crudely divided circles, and the excellent work done with them only shows the genius of many of the early astronomers who had nothing better to work with.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "armillary" in a variety of sentences. We hope that you will now be able to make sentences using this word.
