4) In his corpus, Ptolemy cites only two philosophers: Aristotle, here in Almagest
For us it is correct [to hold], as it has been established in Almagest
, that the celestial motions and spheres are many [in number], just as they vary in direction and velocity.
These were considerations taken up in the Almagest
that led to Ptolemy's modifications of the epicyclic models of his predecessors, namely to the creation of the eccentric and equant models of the planets.
Among the topics addressed are the characteristics of the Latin version of Gersonides' Astronomy, Latin contributions to the theory and astronomical use of the pinhole camera, commentary on the two chapters in Gersonides' Astronomy that investigate the ability of homocentric models to reproduce observed planetary motions, commentary on the Latin translation made by John of Dumpno in 1260 of Ibn al-Kammadi's zij al-Mugtabis, and evidence that the correction to Ptolemy's value for the mean synodic month supposedly made by Copernicus actually originated to al-Hajjaj's Arabic version of the Almagest
through Cremona's Latin translation.
And today, on the research level, a scientist derives no benefit from studying Ptolemy's Almagest
The mathematics in the Almagest
is both complex and exquisite and produces a model which is much simpler.
Horrocks realised from viewing the stars,moons and planets that his close observations did not fit the map based on the Almagest
, the masterpiece of the second century Alexandrian mathematician Claudius Ptolemaeus (Ptolemy) which was regarded as the astronomers'bible for more than 1,000 years.
In Chapters II, III and IV the author summons astronomy and statistics to back his theories -- apparently, there is abundant astronomical proof for the author's theories in the ancient Egyptian zodiacs, Ptolemy's Almagest
, and the Biblical Book of Revelation, demonstrating that all datings of "ancient" eclipses are blatantly untrue.
degree on 30 May 1570 he read "his ordinaries in the Almagest
of Ptolomey"' (DNB, quoting Wood 1815: ii, 310), while `Savile himself gave in act week 1620 the first lectures in geometry [under the aegis of the Chair he had founded[, which were published in 1621, together with some of his earlier mathematical lectures [as] .
Franny Norton, on the mark with handicap debutant Bushel, was denied a double on the night when 25-1 shot Rosairlie lost out by a head to Almagest
in the 2m handicap.
10 1 HAYLAMAN (IRE) S De Sousa (7-2) 2 Gabrial The Great (IRE) G Lee (2-1 Fav) 3 Almagest
D Tudhope (9-1) Tote: win PS4.
From the observations recorded by Ptolemy in his Almagest
, (10) we find that he and his recent antecedents and contemporaries, e.
For instance, in his commentary on Book V of Ptolemy's Almagest
, Pappus of Alexandria gave a description of this instrument.
Before the age of sixteen he had read Porphyry's Isagoge, Euclid's Elements, and Ptolemy's Almagest
, and had studied Indian arithmetic and Islamic law.
A twelfth-century copy of Ptolemy's Almagest
was priced at 1,000 [pounds sterling]; a fourteenth-century compendium of military and medical texts including Martin of Aachen's Liber Acquisitionis Terrae Sanctae at 750 [pounds sterling]; a fifteenth-century Spanish (thought at the time to be Italian) Josephus The Jewish Wars at 500 [pounds sterling]; an eleventh-century copy of Druthmar's Commentary on St Matthew at 400 [pounds sterling]; and a fourteenth-century compendium of English Laws at 300 [pounds sterling].