Embassy of the Free Mind: Virtual Library |||

Johannes de Sacro Bosco (ca 1195-ca 1256)

Johannes de Sacro Bosco was a scholar, mathematician and astronomer. He wrote the influential treatise Liber de spatio temporis (On the Measurement of Time), which was used as a textbook by scholars of the Middle Ages. He is best known for his work on the computation of Easter, which he developed in his treatise Computus, and for his calculations of the motion of the planets and the precession of the equinoxes.

Sphaera mundi. [Venezia, Adam von Rottweil, about 1478] >>

Sphaera mundi. Gerardus Cremonensis: Theorica planetarum. Tractatus de motu octavae sphaerae. Bologna, Dominicus Fuscus, 1480 >>

Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. Venezia, Erhard Ratdolt, 6 July 1482 >> | >>

Sphaera mundi. [Leipzig, Printer of Capotius, [=Martin Landsberg, or Andreas Frisner], about 1487-1488] >>

Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. Venezia, Johannes Lucilius Santritter, and Hieronymus de Sanctis, 31 March 1488 >>

Sphaera mundi. Leipzig, Conrad Kachelofen, [1489] >>

Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. Venezia, [Bonetus Locatellus], for Octavianus Scotus, 4 October 1490 >> | >>

Sphaera mundi. Georgius Purbachius: Theoricae novae planetarum. Regiomontanus: Disputationes contra Cremonensia deliramenta. Venezia, v, 14 January 1491 >> | >>

Sphaera mundi. [Leipzig], Martin Landsberg, [1494] >>

Sphaera mundi. [Leipzig], Martin Landsberg, [about 1495] >>

Sphaera mundi. [Leipzig, Wolfgang Stöckel],1498 >>

Sphaera mundi. Köln, Heinrich Quentell, 7 July 1500 >>

Up next Gemma Frisius (1508-1555) Anonymous of 379 (5th century BCE)
Latest posts Berossus (3rd century BCE) Johann Valentin Andreae (1586-1654) Demetrios Chalkokondyles (1423-1511) Henricus Cornelius Agrippa von Nettesheim (1486–1535) Porphyry of Tyre (c. 234–305 CE) Paulus Alexandrinus (4th century) Johannes Trithemius (1462–1516) Girolamo Cardano (1501-1576) Giambattista della Porta (1535-1615) Paulus Ricius (-1541) Matteo Bosso (1427-1502) Nechepso and Petosiris (c. 1st century BCE - 1st century BC) Thrasyllus (fl. 1st century BC) Firmicus Maternus (4th century CE) Marcus Manilius (1st century CE) Claudius Ptolemy (c. 90–168 AD) Dorotheus of Sidon (1st century CE) Giovanni Abioso (ca 1553-ca 1523) Anonymous of 379 (5th century BCE) Johannes de Sacro Bosco (ca 1195-ca 1256) Gemma Frisius (1508-1555) Hephaistos of Thebes (5th century BCE) Rhetorius of Egypt (7th century CE) Vettius Valens (c. 140 — c. 175) Alchabitius (829-861) Ramon Llull (ca 1232-1315/16) Hendrik Herp (ca 1400-1477) Jamblichus (c. 245–c. 325 CE) Giovanni Pico della Mirandola (1463-1494) George Starkey (1628-1665) Albertus Magnus (c. 1200 — November 15, 1280)