armillary sphere

One of the first models ever made was called an armillary sphere.

It was intended to serve as an automatic armillary sphere.

The clock has an armillary sphere with a diameter of 40 cm.

The Portuguese shield was kept, being positioned over the armillary sphere.

To the side, one man peers through a telescope while another stands beneath an armillary sphere.

A third design is the complex series of rings called an armillary sphere, usually set on a pedestal.

He could make us reach out to touch an armillary sphere in the belief that it must be round and not flat.

Armillary spheres were among the first complex mechanical devices.

A huge armillary sphere glinted in the far corner.

An archer picked the armillary sphere up from the floor and handed it to Bernard.

There is also technical literature in the collection, plus similar instruments, such as armillary spheres.

The effect by day is an armillary sphere hanging in the center that gives off a mysterious glow.

Hipparchus probably used an armillary sphere of four rings.

The top of the spire is decorated with an armillary sphere and cross in metal.

He added then, prudently, "But it was an armillary sphere, not his virtue."

Armillary spheres, representing celestial order, are located at each end of the balustrade.

He designed the model for his armillary sphere in 976 and completed the creation of it in 977.

A large iron armillary sphere stands in the center of the square, supported by six small metal turtles.

This is the principle behind the armillary sphere and the equatorial bow sundial.

Hipparchus made his measurements with an armillary sphere, and obtained the positions of at least 850 stars.

The figures are seated around an armillary sphere banded by the signs of the zodiac.

He also made an armillary sphere.

The observatory was fitted with an armillary sphere which is a model of the celestial sphere.

He participated in drafting and editing the calendar and the study of the armillary sphere.

Just as the armillary sphere is largely open for easy viewing of the dial, such non-planar surfaces need not be complete.