Al-Sufi says that the star was marked on the old astrolabes as al-schira al-schamia, "the Syrian Sirius.
In his Universal Lexicon, Zedler explains thatastrolabes are of two kinds, 'universal' and 'particular.
Some Astrolabes shew 18 of these azimuthal circles, as in my figure (fig.
There are two astrolabes in Merton College, besides a plate exhibiting astronomical tables.
Mr. Taylor further describes two Astrolabes in the British Museum.
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.
Astrolabes and equatoria rapidly became very popular, mainly through the reason for which they had been first devised, the avoidance of tedious written computation.
Many medieval astrolabes have survived, and at least three medieval equatoria are known.
The astrolabes which had the broadest disks were more exact, as they were projected on a larger scale, but as they were easily jostled by the wind or the movement of the ship at sea, they could with difficulty be employed.
The above list will hopefully give you a few useful examples demonstrating the appropriate usage of "astrolabes" in a variety of sentences. We hope that you will now be able to make sentences using this word.