Tractatus de sphaera, Textus de sphaera, or simply De sphaera) is a medieval introduction to the basic elements of astronomy written by Johannes de Sacrobosco...

named in his memory. About 1230, his best-known work, Tractatus de Sphaera / De Sphaera Mundi (Treatise on the Sphere / On the Sphere of the World) was...

237-238. The Jewish Encyclopedia Valleriani, Matteo (2020-01-01). De Sphaera of Johannes de Sacrobosco in the Early Modern Period: The Authors of the Commentaries...

Arts Collection in New York, alongside astronomer Johannes de Sacrobosco's manuscript "De sphaera mundi" (On the Sphere of the World), which supports the...

1180–84 Tractatus de Sphaera, or De sphaera mundi, the basic elements of astronomy written by Johannes de Sacrobosco c. 1230 Tractatus de superstitionibus...

combinatorial concepts. He had read Clavius' comments to Sacrobosco's De sphaera mundi, and some other contemporary works. He introduced the term variationes...

relied on introductions to the Ptolemaic system such as the De sphaera mundi of Johannes de Sacrobosco and the genre of textbooks known as Theorica planetarum...

been noted to be spherical. For example, Johannes de Sacrobosco (1195–1256) wrote in his De sphaera mundi ("Treatise on the Sphere"): That the earth,...

picture of a small paper boat in an edition of Tractatus de sphaera mundi from 1490 by Johannes de Sacrobosco. However it is very likely that paper folding...

Lefèvre d'Étaples, together with his own commentary on John Sacrobosco's De Sphæra Mundi and Euclid's Geometry, Paris, 1500. Editions were also published...

Crowther, Kathleen M. (2020). "Sacrobosco's Sphaera in Spain and Portugal". De sphaera of Johannes de Sacrobosco in the Early Modern Period. pp. 161–184...

in 1623. In 1626, Burgersdijk was tasked with editing Johannes de Sacrobosco’s De sphaera to rid the book of its Latin. Burgersdijk participated in two...

ascribed to a Gerard (either of Cremona or of Sabioneta) or the De sphaera mundi of Johannes de Sacrobosco. Pedersen, O. (1981). "The Origins of the Theorica...

and, in De rebus mathematicis (1556), he gave 3+11/78 ≈ 3.1410.[citation needed] In 1542 Fine published the astronomy textbook De mundi sphaera (On the...

Nicomachus, Philolaus was the successor of Pythagoras. According to Cicero (de Orat. III 34.139), Philolaus was teacher of Archytas. According to the Neoplatonist...

Walter William Skeat. Mark Harvey Liddell held Chaucer drew on De Sphaera of John de Sacrobosco for the substance of his astronomical definitions and...

small paper boat in the 1498 French edition of Johannes de Sacrobosco's Tractatus de Sphaera Mundi. There is also evidence of a cut and folded paper box...

Lucretius in his poem De rerum natura. In 1543, the geocentric system met its first serious challenge with the publication of Copernicus' De revolutionibus orbium...

S2CID 14318695. Oughtred, William (1652). Theorematum in libris Archimedis de sphaera et cylindro declarario (in Latin). Excudebat L. Lichfield, Veneunt apud...

Johannes de Sacrobosco (c. 1195 – c. 1256) – Irish monk and astronomer who wrote the authoritative medieval astronomy text Tractatus de Sphaera; his Algorismus...

he was fascinated by the thirteenth-century work of Johannes de Sacrobosco, De sphaera mundi, and on 12 September 1662 observed his first partial solar...

De sphaera quae movetur liber...

Sphera volgare, featuring the Sun, the Moon, the winds and the stars as living. Woodcut illustration from an edition of De sphaera mundi, Venice, 1537....

Abigdor's Hebrew translation of Sacrobosco's treatise on astronomy, Tractatus de Sphæra, or "Aspectus Circulorum," (Hebrew, "Mar'eh ha-Ofannim"), with an explanation...

including Johannes de Sacrobosco's De sphaera mundi, Petrus Apianus's Cosmographia seu descriptio totius orbis and Regiomontanus's De triangulis omnimodis...

books by the philosopher Peter Sloterdijk De sphaera mundi (The Sphere), a medieval astronomy book by Johannes de Sacrobosco The Sphere (newspaper), a British...

by Johann Numeister and Evangelista Angelini da Trevi Johannes de Sacrobosco – De sphaera mundi (written c. 1230), the first printed astronomical book Paul...

A volvelle from the sixteenth century edition of the De sphaera mundi by Johannes de Sacrobosco....

York, U.S. Chinese constellations – Groupings used in Chinese astrology De sphaera mundi – Book by Sacrobosco, describes the late medieval (Ptolemaic) cosmos...

Raccolta musicale estense. Biblia Borsi Estensis Codex Mutinensis Codex de sphaera Mutinensis gr. 122 Minuscule 585 Minuscule 586 Minuscule 358 Minuscule...