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Planetaria & Sundials > Historical instruments > Hemisferium > Hemisferium Lunar Calendar and Tide Calculator 12 cm
Product no.: 91063

Lunar Calendar and Tide Calculator 12 cm

$ 125.00 incl. VAT plus shipping costs
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short-term
ready for shipping in 1-2 weeks + lead time
  • Inspired by instruments from the 16th and 17th centuries
  • High-quality materials, fully functional!
Product questions?

Product description

This instrument consists of a perpetual lunar calendar on one side and an abacus or tide calculator on the other. It is based on the need to to predict the time of the passage of the Tides and the intimate relationship of these with the influence of the rotation of the Moon in its orbit around the Earth.

Knowing the phases of the moon is of great cultural importance for many peoples: calendars, religious festivals, agricultural practices, etc.

The tide calculator or abacus is used to calculate tide times because of its important effects on navigation, ports and fishing.

Specifications

General

Material
wood & brass
Diameter (mm)
120
Height (mm)
162
Depth (mm)
7

Product safety

Manufacturer: Hemisferium. Instrumentos Cientí­ficos Antiguos, S.L., C/ Sodio, 7. P-29. Collado Villalba, 28400 Madrid, ES, www.hemisferium.net
Hemisferium Lunar Calendar and Tide Calculator 12 cm
Hemisferium Lunar Calendar and Tide Calculator 12 cm

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