What is a cupula?

What is a cupula?

The ampullary cupula, or cupula, is a structure in the vestibular system, providing the sense of spatial orientation. The cupula is located within the ampullae of each of the three semicircular canals. ... This continues until the head stops rotating which simultaneously halts semicircular duct rotation.

What is cupolas in architecture?

Cupolas are small, dome-like structures that sit on a building's roof ridge and help define the structure's centerline. Typically, the base is square, hexagon or octagon and is designed with windows or louvers (vents) on the sides.

How tall is a roof finial?

Example: a 32 foot garage roof is OK with a 32″ figure but will look best with a 36″ figure, 36″ high Finial, or 36″ square cupola (base width). 'Second rule of thumb' is “Scale to Height”, the higher up or farther away your piece goes, the larger it will need to be in proportion.

What is a roof finial?

Basically, they are decorative caps to the point or end of a roof. ... Finials can be any distinctive ornament at the top, end, or corner of a building or structure. They often come in familiar shapes and objects found in nature, such as pinecones, pineapples, acorns, fleurs-de-lis, fronds, arrowheads, spheres and lances.

How does a weather vane work?

A weather vane, wind vane, or weathercock is an instrument used for showing the direction of the wind. ... When the wind is sufficiently strong, the head of the arrow or cockerel (or equivalent depending on the chosen design) will indicate the direction from which the wind is blowing.

Why is there a rooster on a weather vane?

Roosters were commonly used as weather vanes on churches in both Europe and America for hundreds of years. Roosters are useful as wind vanes because their tail is the perfect shape to catch the wind. Symbolically, the rooster is the first to see the rising sun and announce the day.