Papers by Cristian Tolsa Domènech
Apeiron, 2024
We may take tables for granted. However, due to a variety of factors, tables were a rarity in the... more We may take tables for granted. However, due to a variety of factors, tables were a rarity in the history of ancient Greek culture, used only limitedly in very special contexts and generally in a non-systematic way, except in astronomy. In this paper I present the main types of tables that can be found in ancient Greek texts: non-ruled columnar lists (accounts and other types of informal tables), ruled columnar lists (mostly astronomical tables), and symmetric tables (mainly Pythagorean displays of numbers).
Arethusa 52, 2019
Cicero mentions the verses inscribed on the tomb of Archimedes, which he summarizes as describing... more Cicero mentions the verses inscribed on the tomb of Archimedes, which he summarizes as describing the sphere and cylinder on top, but he does not quote them, even though he used his previous knowledge of them to identify the monument (Tusc. 5.64–66). Horace, on the other hand, provides an “epitaph” which must be understood as ctive and not really on the tomb. e actual tomb, which is only very vaguely located, is not important. Furthermore, the verses are not clearly marked as a quota- tion from the tomb, because the poet does not want us to believe that they are the real epitaph. It is rather the opposite: by placing the epitaph in the last section, Horace turns the poem itself into a monument, “a monument more durable than bronze” (Odes 3.30: monumentum aere perennius), and puts himself and poetry—including the ctional epitaph and the ctional hybrid Archytas-Archimedes—in opposition to the perishable tomb and the mortal mathematician.
Both Cicero and Horace, then, use the gures of mathematicians as points of comparison to their greater selves, but whereas Cicero pictures himself as a worthy receptor of Archimedes’ immortal grandeur, Horace draws a sharp distinction between his really immortal art and the vulgar dead remains of Archytas and Archimedes.
SCIAMVS, 2019
This paper focuses on an edition with English translation and commentary of an excerpt from the S... more This paper focuses on an edition with English translation and commentary of an excerpt from the Syntagma Laurentianum, the astrological miscellany contained in the 11th century manuscript Laur. Plut. 28.34, systematically applying techniques of horoscopic astrology to the determination of the possibility, intensity, and time of rain through the year. The heading shows an attribution to "a certain Syrian" (Σύρος τις), which I claim should probably be interpreted as a misleading scribal correction of the name Σύρος. The name probably indicates servile origin from Syria, and the Greek text may indeed show interferences with Aramaic dialects. In an appendix, I discuss the possibility that the author was identical with the dedicatee of half of Claudius Ptolemy's treatises.
Museum Helveticum, 2017
Claudius Ptolemy’s Canobic inscription has received scholarly attention for its astronomical mode... more Claudius Ptolemy’s Canobic inscription has received scholarly attention for its astronomical models and their relationship with those of the Almagest, but the motivations for its dedication to the “savior god” have yet to be addressed. This article provides reasons to believe that Ptolemy alluded thereby to the astronomical program of “saving the phenomena” – the explanation of the apparently irregular motions of the planets through combinations of uniform, circular motions. In addition, it is argued that Plato’s Timaeus shows deep affinities with the inscription, including an invocation of a savior god by the main character of the dialogue (48d–e).
Suhayl, 2020
My aim here is to shed light on the origins of magic squares in the Islamic world. This question ... more My aim here is to shed light on the origins of magic squares in the Islamic world. This question has often been tentatively addressed, but previous studies considered only part of the evidence. The earliest Arabic texts discussing squares (al-Ṭabarī, Jābir ibn Ḥayyān, Ghāyat al-Ḥakīm, Brethren of Purity) are examined here together for the first time, as well as the Indian medical sources.
Greek, Roman, and Byzantine Studies, 2019
The ethical strictures, quite different from the first paragraph (the oath of allegiance), were u... more The ethical strictures, quite different from the first paragraph (the oath of allegiance), were unknown to early readers and show affinities with the purity requirements of late Hellenistic cults: the strictures thus may be a late addition portraying the ideal physician.
Arethusa, 2019
In Odes 1.28, Horace deals with one of his favorite topics: death and the appropriate human dispo... more In Odes 1.28, Horace deals with one of his favorite topics: death and the appropriate human disposition towards it, by focusing on the Pythagorean mathematician Archytas and his tomb near the sea. The paper tackles the old interpretive difficulty arising from the fact that several of the mathematician’s traits belong rather to Archimedes by arguing that Horace purposefully conflated the two mathematicians to respond to Cicero, who famously portrays himself cleaning Archimedes’ tomb in Tusculans 5.64. By identifying Archimedes with Archytas, Horace accentuates the aura of immortality attributed to Archimedes by Cicero and is able to offer his own contrasting view more forcefully.
Suhayl
My aim here is to shed light on the origins of magic squares in the Islamic world. This question ... more My aim here is to shed light on the origins of magic squares in the Islamic world. This question has often been tentatively addressed, but previous studies have considered only part of the evidence. The earliest Arabic texts presenting squares (al-Ṭabarī, Jābir ibn Ḥayyān, Ghāyat al-Ḥakīm, Brethren of Purity) are examined here together for the first time, as well as the Indian medical sources. The extraordinary coincidences in the use of the square of three in therapy for a good delivery in both the early Arabic texts and the Indian, as well as the close cultural, geographical, and chronological context, strongly suggests that such eutocic practice represents the origin of Islamic magic squares.
Vettius Valens 1.18 contains simple methods for the computation of the planetary positions along ... more Vettius Valens 1.18 contains simple methods for the computation of the planetary positions along the zodiac, which at best give only mean longitudes. Using a preserved summary of Balbillus' astrological work, the author makes the case for Balbillus' authorship, and proposes an explanation for their invention and posterior use in Valens.
The preserved part of POxy LXI 4277 (late 2 nd /early 3 rd c. by handwriting) provides longitudes... more The preserved part of POxy LXI 4277 (late 2 nd /early 3 rd c. by handwriting) provides longitudes to the minute for Mercury, the four cardines, and three lots, along with their characterization according to many systems for the division of the zodiac. 1 The editor expresses ignorance about one of these doctrines ("zodiacal place"), and proposes an explanation for another of them ("step and wind") that needs improvement. I will show that the two doctrines are in fact paralleled in the work of Vettius Valens.
Claudius Ptolemy’s Canobic inscription has received scholarly attention for its astronomical mode... more Claudius Ptolemy’s Canobic inscription has received scholarly attention for its astronomical models and their relationship with those of the Almagest, but the motiva- tions for its dedication to the “savior god” have yet to be addressed. This article provides reasons to believe that Ptolemy alluded thereby to the astronomical program of “saving the phenomena” – the explanation of the apparently irregular motions of the planets through combinations of uniform, circular motions. In addition, it is argued that Plato’s Timaeus shows deep af nities with the inscription, including an invocation of a savior god by the main character of the dialogue (48d–e).
Porphyry’s comments on Ptolemy Harmonics II.1 are puzzling for their misrepresentation of Ptolemy... more Porphyry’s comments on Ptolemy Harmonics II.1 are puzzling for their misrepresentation of Ptolemy’s text. Ptolemy attempts to deduce the basic ratios of Greek music for a second time, now from the cithara, after having deduced them from the harmonic canon—an instrument devised and used by music theorists—in the previous chapters. In this paper I attempt both to show the numerous disagreements and to defend the thesis that Porphyry was consciously altering Ptolemy’s text. This has a significant connection with the issue of the incompleteness of Porphyry’s commentary, as well as consequences for the understanding of the late ancient commentary tradition.
Book Reviews by Cristian Tolsa Domènech
BMCR, 2022
This is an important book. It collects fifteen articles derived from ten international workshops ... more This is an important book. It collects fifteen articles derived from ten international workshops held in Paris between 2015 and 2019 as part of the project "Pseudopythagorica. Stratégies du faire croire dans la philosophie antique". The words "redivivus" (cf. O'Meara 1990) and "attributed" in the title are key to the
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Papers by Cristian Tolsa Domènech
Both Cicero and Horace, then, use the gures of mathematicians as points of comparison to their greater selves, but whereas Cicero pictures himself as a worthy receptor of Archimedes’ immortal grandeur, Horace draws a sharp distinction between his really immortal art and the vulgar dead remains of Archytas and Archimedes.
Book Reviews by Cristian Tolsa Domènech
Both Cicero and Horace, then, use the gures of mathematicians as points of comparison to their greater selves, but whereas Cicero pictures himself as a worthy receptor of Archimedes’ immortal grandeur, Horace draws a sharp distinction between his really immortal art and the vulgar dead remains of Archytas and Archimedes.