Hanging Altitude Ring Dial (40º to 50º Lat.) Silver
Altitude sundial. Thus named because the parameter of its construction is based on the Sun’s altitude.
REF: 1208
On the 15th century mariners discovered a way to estimate their latitude to find their location in the sea. It was based on a well-known fact: the height of celestial bodies depends on the latitude. Soon various instruments joined the quadrant, the nautical astrolabe and the cross-staff or ballastella.
Pedro Nunes (Portugal) invented the nonius, a process for subdividing scales, and created other instruments of innovative design.
Price:
€44.00
| Dimensions | Ø 3,6 cm. Lenght: 43 cm |
|---|---|
| Material | Brass |
| Observations | Contains information leaflet with historical context and instructions for use. Functional parts, but not intended for serious use. |
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