How does the armillary sphere work?
In respect to this, how is the armillary sphere used today?
The armillary sphere is also known as the spherical astrolabe, the armilla, or the armil. In addition to its being used in the Greek world, the armillary sphere was also used throughout Asia and the Islamic Empire. These devices were used as teaching tools and models.
Likewise, what is an astronomical sphere? An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centred on Earth or the Sun, that represent lines of celestial longitude and latitude and other astronomically important features
One may also ask, how does an armillary sundial work?
As the sun travels across the sky, the gnomon of our armillary sundial casts a shadow onto a surface that indicates the hour. The longer your armillary is in direct sunlight, the better it will give accurate readings.
What is the sphere?
ρα—sphaira, "globe, ball") is a perfectly round geometrical object in three-dimensional space that is the surface of a completely round ball (viz., analogous to the circular objects in two dimensions, where a "circle" circumscribes its "disk").