IsisCB Explore

Article ID: CBB165773348

The Liber Theoreumacie (1214) and the Early History of the Quadrans Vetus (2020)

Nothaft, C. Philipp E. (Author)

Journal for the History of Astronomy
Volume: 51
Issue: 1
Pages: 51-74
Publication date: 2020
Language: English

DOI: 10.1177/0021828619885504

URI: https://journals-sagepub-com.ezproxy.lib.ou.edu/doi/full/10.1177/0021828619885504

Outside Links

WorldCat

Google Scholar

JSTOR

Critical editions Translations Sundials Quadrants (astronomical instruments) Time measuring instruments Geometry Medieval Europe Strasbourg (France)

The Liber theoreumacie is a neglected work of practical geometry, written in Strasbourg in 1214, which sheds valuable light on the study and practice of astronomy in early thirteenth-century Europe. In this article, I focus on the first two chapters of Book IV, which both deal with the construction of horary instruments. The first of these chapters contains the earliest known account of the type of universal horary quadrant known as quadrans vetus, which is here given a biblical pedigree by labelling it the “sundial of Ahaz.” The second chapter describes a graphical method of inscribing hour markings on the surface of an astrolabe’s alidade, which appears to have been introduced into Latin Europe by the twelfth-century translator John of Seville. A critical edition and translation of the relevant passages will conclude the article.

...More

Citation URI

data.isiscb.org/p/isis/citation/CBB165773348

This citation is part of the Isis database.

Citations Indexes

Similar Citations

Article Nicoletta Rozza; (2019)
Quelques observations sur le lexique technique de la Practica Geometrie de Léonard de Pise, dit Fibonacci (/p/isis/citation/CBB804675476/)

Article Enrico Giusti; (2022)
Un trattato trecentesco di geometria di ambito genovese e la sua traduzione in volgare (/p/isis/citation/CBB047716193/)

Book Marc Moyon; (2017)
La géométrie de la mesure dans les traductions arabo-latines médiévales (/p/isis/citation/CBB684079267/)

Article Hogendijk, Jan P.; (2001)
The Contributions by Abū Naṣr ibn `Irāq and al-Ṣaghānī to the Theory of Seasonal Hour Lines on Astrolabes and Sundials (/p/isis/citation/CBB000301407/)

Chapter Anthony Turner; (2019)
A Mingling of Traditions: Aspects of Dialling in Islam (/p/isis/citation/CBB205481356/)

Article Roland Schewe; John Davis; (2019)
Time on a Tablet: Early Ivory Sundials Incorporating Wax Writing Tablets (/p/isis/citation/CBB257150758/)

Book Eagleton, Catherine; (2010)
Monks, Manuscripts and Sundials: The Navicula in Medieval England (/p/isis/citation/CBB001020520/)

Article Marc Moyon; (2020)
L’appropriation des sciences géométriques arabes en Occident médiéval (/p/isis/citation/CBB110028570/)

Chapter King, David A.; (2008)
Islamic Astronomical Instruments and Some Examples of Transmission to Europe (/p/isis/citation/CBB001022270/)

Book Kim Williams; Cosimo Monteleone; (2021)
Daniele Barbaro’s Perspective of 1568 (/p/isis/citation/CBB209783145/)

Article Viladrich, M.; (2000)
Medieval Islamic Horary Quadrants for Specific Latitudes and Their Influence on the European Tradition (/p/isis/citation/CBB000931689/)

Article C. Philipp E. Nothaft; (2019)
An Overlooked Construction Manual for the Quadrans Vetustissimus (/p/isis/citation/CBB387164209/)

Chapter Veronica Gavagna; (2015)
Alcuni problemi dell'edizione critica degli scritti euclidei di Francesco Maurolico (/p/isis/citation/CBB177834972/)

Article Michel-Pierre Lerner; Alain-Philippe Segonds; (2003)
Éditer et traduire Copernic (/p/isis/citation/CBB153426008/)

Book Eagleton, Catherine; Downes, Jennifer; Harloe, Katherine; Jardine, Boris; Jardine, Nick; Mosley, Adam; (2003)
Instruments of Translation (/p/isis/citation/CBB000651602/)

Thesis Thomas M. Smith; (1955)
A Critical Text and Commentary Upon De latitudinibus formarum (/p/isis/citation/CBB272515823/)

Thesis Nicolás Bamballi; (2020)
The Arabic Version of Galen's De elementis ex Hippocratis sententia 1–5 (/p/isis/citation/CBB565813369/)

Book Gerrit Bos; Charles Burnett; (2000)
Scientific Weather Forecasting in the Middle Ages: The Writings of Al-Kindī: Studies, Editions, and Translations (/p/isis/citation/CBB075390459/)

Book Henry Zepeda; (2018)
The First Latin Treatise on Ptolemy's Astronomy: The "Almagesti Minor" (c. 1200) (/p/isis/citation/CBB830237991/)

Book Herren, Michael W.; Ister, Aethicus; (2011)
The Cosmography of Aethicus Ister: Edition, Translation, and Commentary (/p/isis/citation/CBB001201556/)