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Description

Lunar Calendar & Tidal AbacusPerpetual Moon phases calendar with a tidal abacus on the back. Based on British Reinassence instruments. This Instrument was conceived to address the need to predict the time of tidal changes. It draws on the intimate association with the rotation of the moon, which influences the tides as it rotates around the earth. The Tidal Abacus, or calculator, is employed to predict the time of tidal changes. In order to develop this piece, various instruments

Also available in desk model

Fashioned of Brass and complete with wooden base and booklets on historical context and use

Available in larger version with brass base as well

17th and 18th century

cartography and nautical astronomy at the renowned University of Louvain (Brussels

Original on Greenwich National Maritime Museum and copy on Museo Naval de Madrid

This model is a reproduction of a mobile cubic quadrant that dates back to 1736

The detail in this sundial is exquisite

Fashioned of brass with wood base and featuring a compass rose on the reverse

which allows us to incline the cube in a North-South direction

Sundial (equatorial universal dial)

Between the 16th and 17th century