Medieval Encounters Volume 23 Issue 1-5

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Journal Article

Astrolabes in Medieval Cultures

Rodríguez-Arribas, Josefina; Burnett, Charles; Ackermann, Silke

2017 Medieval Encounters

doi:10.1163/15700674-12342240

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Journal Article

Introduction Hic Sunt Dracones—Astrolabe Research Revisited

Ackermann, Silke

2017 Medieval Encounters

doi:10.1163/15700674-12342241

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Journal Article

Astrolabes as Eclipse Computers: Four Early Arabic Texts on Construction and Use of the Ṣafīḥa Kusūfiyya

Thomann, Johannes

2017 Medieval Encounters

doi:10.1163/15700674-12342242

The main topic of this article comprises four unpublished Arabic texts on astrolabe-like instruments for showing the conditions of eclipses. They are the earliest technical descriptions of eclipse computers in any language. The first text is a treatise by ʿAlī ibn ʿĪsā (ninth century) on a...

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Journal Article

The Astrolabe Finger Ring of Bonetus de Latis: Study, Latin text, and English Translation with Commentary

Rodríguez-Arribas, Josefina

2017 Medieval Encounters

doi:10.1163/15700674-12342243

The subject of this article is the treatise on the astrolabe ring (1492/1493) by Bonetus de Latis (Jacob ben Emanuel Provenzale). The treatise belongs to a four-centuries-old tradition of Jewish treatises on the astrolabe, written mainly in Hebrew and more rarely in Judaeo-Arabic, Judaeo-Spanish,...

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Journal Article

Some Features of the Old Castilian Alfonsine Translation of ʿAlī Ibn Khalaf’s Treatise on the Lámina Universal

Calvo, Emilia

2017 Medieval Encounters

doi:10.1163/15700674-12342244

The aim of the paper is to present some features of the treatise on the lámina universal, an astronomical instrument devised by ʿAlī ibn Khalaf, an eleventh-century Andalusi mathematician and astronomer who belonged to the scientific circle of Ṣāʿid al- Andalusī. ʿAlī ibn Khalaf was a...

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Journal Article

From the Celestial Globe to the Astrolabe Transferring Celestial Motion onto the Plane of the Astrolabe

Vafea, Flora

2017 Medieval Encounters

doi:10.1163/15700674-12342245

The celestial globe is an early astronomical instrument that gives a realistic view of the heavens and the stars and can simulate the celestial motion, but has some disadvantages such as difficulties in construction, transportation and in carrying out measurements. The astrolabe is an evolution...

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Journal Article

Knowledge in Motion: An Early European Astrolabe and Its Possible Medieval Itinerary

Schmidl, Petra G.

2017 Medieval Encounters

doi:10.1163/15700674-12342246

This article discusses the place and date of origin, the earlier whereabouts, and subsequent travels of an unsigned and undated early European astrolabe (International Instrument Checklist iic #0191) now preserved in Oxford, in the Museum of the History of Science. After taking into consideration...

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Journal Article

A Monumental Astrolabe Made for Shāh Jahān and Later Reworked with Sanskrit Legends

Sarma, Sreeramula Rajeswara

2017 Medieval Encounters

doi:10.1163/15700674-12342247

When the astrolabe was introduced in India around the eleventh century, it was received with great enthusiasm. While the Muslims continued the Middle Eastern tradition of the study and manufacture of the astrolabe, the Hindus and Jains, who did not read Arabic, composed manuals on the astrolabe...

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Saphaeae and Hayʾāt: The Debate between Instrumentalism and Realism in Al-Andalus

Forcada, Miquel

2017 Medieval Encounters

doi:10.1163/15700674-12342248

The article explores several texts written in al-Andalus between the twelfth and the early fourteenth centuries that mention Ibn al-Zarqālluh (al-Zarqālī) or the “Toledan astronomers.” These texts, contained in the works of physicians and philosophers, express scholarly reactions to the...

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Astrolabes on Parchment: The Astrolabes Depicted in Alfonso X’s Libro del saber de astrologia and Their Relationship to Contemporary Instruments

Fernández, Laura Fernández

2017 Medieval Encounters

doi:10.1163/15700674-12342249

This article analyses the relationship between text and image in one of the most important scientific manuscripts commissioned by Alfonso x the Learned, El Libro del saber de astrologia (Ms. 156 bh Complutense University, Madrid). The main topic deals with the depiction of astrolabes in the four...

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Medieval Encounters Volume 23 Issue 1-5

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