scholarly journals Figures and Mirrors in Demetrios Triklinios's 'Selenography'

2021 ◽  
pp. 54-73
Author(s):  
Divna Manolova
Keyword(s):  
Fourteenth Century ◽  
Visual Cognition ◽  
The Other ◽  
Lunar Theory ◽  
The Sun ◽  
The Moon ◽  
The Earth ◽  
Mediterranean World ◽  
The One

This article is about the interplay between diagrammatic representation, the mediation of mirrors, and visual cognition. It centres on Demetrios Triklinios (fl. ca. 1308–25/30) and his treatise on lunar theory. The latter includes, first, a discussion of the lunar phases and of the Moon's position in relation to the Sun, and second, a narrative and a pictorial description of the lunar surface. Demetrios Triklinios's Selenography is little-known (though edited in 1967 by Wasserstein) and not available in translation into a modern scholarly language. Therefore, one of the main goals of the present article is to introduce its context and contents and to lay down the foundations for their detailed study at a later stage. When discussing the Selenography, I refer to a bricolage consisting of the two earliest versions of the work preserved in Bayerische Staatsbibliothek, graecus 482, ff. 92r–95v (third quarter of the fourteenth century) and Paris, Bibliothèque nationale de France, graecus 2381, ff. 78r–79v (last quarter of the fourteenth century). I survey the available evidence concerning the role of Demetrios Triklinios (the author), John Astrapas (?) (the grapheus or scribe-painter), and Neophytos Prodromenos and Anonymus (the scribes-editors) in the production of the two manuscript copies. Next, I discuss the diagrams included in the Selenography and their functioning in relation to Triklinios's theory concerning the Moon as a mirror reflecting the geography of the Earth, on the one hand, and to the mirror experiment described by Triklinios, on the other. Finally, I demonstrate how, even though the Selenography is a work on lunar astronomy, it can also be read as a discussion focusing on the Mediterranean world and aiming at elevating its centrality and importance on a cosmic scale.

scholarly journals Lunar

JOGED ◽  
2017 ◽  
Vol 7 (2) ◽  
Author(s):  
Dewi Sinta Fajawati
Keyword(s):  
Full Moon ◽  
Big Bang ◽  
The Other ◽  
The Sun ◽  
The Moon ◽  
Big Bang Theory ◽  
Essential Idea ◽  
Visual Reaction ◽  
Night Sky ◽  
The One

Bulan merupakan sumber inspiratif dalam penggarapan karya tari ini. Secara ilmu pengetahuan, Bulan adalah benda langit yang disebut satelit, satelit satu-satunya yang dimiliki Bumi dan tercipta secara alami. Banyak teori yang mengatakan tentang terbentuknya Bulan, salah satunya adalah teori Big bang atau dentuman besar. Pada dasarnya Bulan hanyalah sebuah Benda besar berbentuk bulat yang tidak bisa bercahaya, cahaya yang kita lihat pada malam hari merupakan refleksi dari cahaya matahari. Akan tetapi keindahannya memang tidak bisa dipungkiri, karena dia paling bercahaya diantara hamparan langit yang gelap. Cahayanya tidak selalu terang, bahkan tidak selalu bulat, terkadang hanya terlihat setengah atau terlihat seperti sabit..            Penata tari memetaforakan objek bulan yang berada di tempat yang sangat tinggi sebagai sebuah cita-cita yang ingin dicapai. Seringkali lagu anak-anak yang menjadi pengalaman auditif penata tari, menjadikan bulan sebagai objek yang ingin digapai, misal lagu ‘Ambilkan Bulan Bu’. Namun intisari yang akan dipakai dalam penggarapan koregrafinya adalah tentang fase bulan yang tercipta. Bersumber dari rangsang awal melihat bulan atau rangsang visual, penata tari menginterpretasikan fase-fase bulan yang terjadi sebagai fase kehidupan yang dijalani untuk menggapai sebuah cita-cita tersebut.            Koreografi diwujudkan dalam bentuk kelompok dengan membagi dua karate penari. Delapan penari merupakan simbolisasi Bulan, dan satu penari sebagai manusia yang bercita-cita. Dengan bentuk tari dramatik, penyajiannya dibagi menjadi 5 adegan, yaitu Introduksi Big bang, Adegan 1 Moon happen, Adegan 2 Mengejar Impian, Adegan 3 Dancing with Moon, dan Ending ‘Catch Your Dream’. The moon is the essential inspirations of this choreograph. Theoretically, the moon is a sky object which is called as satellite. The one and only naturally created satellite belongs to the planet Earth. There are many theories that explain how the moon was created. One of those theories is Big Bang theory or massive crash. Basically, the moon is just a huge circle thing which is unable to shine its glow. The light that we experience in the evening is the reflection of the sun. However, thebeauty of the moonlight is undeniable as it has the significant light within the darkest night sky. Its light is not always the strongest, even it’s not always circle (full), every so often it is seemed only the half part of it or crescent moon.            The choreographer interpreted the moon that belongs in the highest as the goals that she wants to reach. Most of the time, the children songs (lullaby) that pick the moon as the main object that is desired to be reached, for example the song “Ambilkan Bulan, Bu”. The essential idea that is explored in this choreograph is the creational phase of the moon itself. It was started by way of visual reaction when the choreographer observed the moon, she interpret the moon’s phases as the phases in human’s life which are gone through to reaching their goals. Fall and recovery, passionate, and even sometimes they give it in, are interpreted from the moonlight. The full moon which has the brightest and the most perfect light is likened as the strong spirit. The crescent moon with its soft light is interpreted as low spirit and unconfident.             This in-group-choreograph is separated into two characters with 8 female dancers that are the symbolization of the moon and the other one female dancer symbolizes a human with aspire. With dramatic dance form, this choreograph is presented into five parts, including introduction part of Big Bang, Moon Happen in part one, Chasing Dream is part two, Dancing With The Moon in part three, Catch Your Dream in the ending part.

Solar Motion and Lunar Eclipses in Philolaus’ Cosmological System

Apeiron ◽  
2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Dirk L. Couprie
Keyword(s):  
The Other ◽  
The Sun ◽  
The Moon ◽  
Internal Logic ◽  
Wrong Side ◽  
The Earth ◽  
Solar Motion ◽  
Length Of The Day

Abstract In this paper, three problems that have hardly been noticed or even gone unnoticed in the available literature in the cosmology of Philolaus are addressed. They have to do with the interrelationships of the orbits of the Earth, the Sun, and the Moon around the Central Fire and all three of them constitute potentially insurmountable obstacles within the context of the Philolaic system. The first difficulty is Werner Ekschmitt’s claim that the Philolaic system cannot account for the length of the day (νυχϑήμερον). It is shown that this problem can be solved with the help of the distinction between the synodic day and the sidereal day. The other two problems discussed in this paper are concerned with two hitherto unnoticed deficiencies in the explanation of lunar eclipses in the Philolaic system. The Philolaic system cannot account for long-lasting lunar eclipses and according to the internal logic of the system, during lunar eclipses the Moon enters the shadow of the Earth from the wrong side. It is almost unbelievable that nobody, from the Pythagoreans themselves up to recent authors, has noticed these two serious deficiencies, and especially the latter, in the cosmology of Philolaus the Pythagorean.

Derived Light and Eclipses in the Fifth Century

1968 ◽  
Vol 88 ◽  
pp. 114-127 ◽  
Author(s):  
D. O'Brien
Keyword(s):  
Fifth Century ◽  
The Other ◽  
The Sun ◽  
The Moon ◽  
The One ◽  
Principal Elements

In a study earlier in this volume, ‘The Relation of Anaxagoras and Empedocles’, pp. 93–113, I listed the ancient evidence to the effect that Anaxagoras first gave the correct explanation of an eclipse, and that he was followed in this by Empedocles. A more extensive examination of the evidence raises certain difficulties. For what are, or might appear to be, Anaxagoras' theories are attributed elsewhere to earlier thinkers.There are two principal elements in this contradiction, the one direct and the other indirect.1. There is a direct contradiction when Thales, Anaximenes and some Pythagoreans are said to have given the correct explanation of an eclipse, at least if we suppose the Pythagoreans in question to have been earlier than Anaxagoras.2. There has been thought to be an indirect contradiction when several thinkers before Anaxagoras are said to have derived the moon's light from the sun. For a theory of derived light for the moon has been thought, whether rightly or wrongly, to entail the correct explanation of an eclipse.In what follows I shall attempt to solve these, and some other incidental difficulties.

scholarly journals ROLE OF HEMANT RITU (EARLY WINTER) FOR MAINTEINANCE AND ENHANCEMENT OF BALA (STRENGTH)

2021 ◽  
Vol 9 (4) ◽  
pp. 829-832
Author(s):  
Shilpa Kachhawaha ◽  
Rajesh Kumar Sharma ◽  
Dinesh Chandra Sharma
Keyword(s):  
The Body ◽  
The Sun ◽  
Heating Effect ◽  
Human Beings ◽  
The Moon ◽  
Review Of Literature ◽  
The Earth ◽  
Body Strength ◽  
The World

Seasons (Ritus) are the inherent global earth clock and the rhythm of the world. As per Ayurveda year is divided into six seasons, in which three season Shishira, Vasanta and Greeshma are known as Aadanakala . Other three seasons Varsha, Sharad and Hemanta are said to be Visargakala. In Visarga kala, as the Sun is located in southwards position, its heat reduces or slows down due to the effect of time and its position with respect to the Earth, wind, cloud and rain. The power of the Moon is predominant. Rainwater decreases the heating effect of nature. All of these lead to the predominance of non- dryunctuous, amla (sour), lavana (salty), and madhura (sweet) rasa respectively and step by step rise of body strength in human beings during these three seasons. Out of all the Ritus, Hemanta Ritu is a unique Ritu in terms of having uttam bala. Falling in Dakshinayana, moon is very powerful than sun, Madhur rasa is predominant in this Ritu, so the strength (Bala) of person enhances during this period. This article focuses to disclose thorough review of literature of Hemant ritucharya and its implication towards maintenance and enhancement of Uttam Bala. In Ayurveda oja, veerya, prana, kapha etc terms are considered as synonyms of Bala. Besides prakruti(genetic), sara(physiological) and aahar(diet), kala (season) is one of the prime factors to govern the Bala of the person. Bala stands for the strength of the body in terms of physical, mental, immunological and resistance to the body, the word Bala is being used in different contexts to denote various aspects accordingly. Keywords: Visarga kala, Hemant ritu, Bala

Cosmology

2018 ◽  
pp. 158-183
Author(s):  
Ian Richard Netton
Keyword(s):  
Old Testament ◽  
Virgin Mary ◽  
The Other ◽  
The Sun ◽  
The Moon ◽  
The People ◽  
The One

This chapter introduces its subject by examining two early cosmological miracles, the standing of the sun at the command of Joshua in the Old Testament and the stilling of sunset and moonrise in the Islamic account by Joshua during the conquest of Jericho.The chapter then surveys and analyses in some depth two major cosmological miracles in the Christian and Islamic traditions:the Miracle of the Sun at Fatima in 1917 and the Splitting of the Moon in the Qur’an. Both miraculous events may be described as ‘proof-events’ designed to underline the truth of messages brought to three children at Fatima in Portugal by the Virgin Mary on the one hand, and by Muhammad to the people of Mecca on the other.

4. Canon days and the Little Commentary

2016 ◽  
pp. 24-36
Author(s):  
Owen Gingerich
Keyword(s):  
The Other ◽  
The Sun ◽  
The Moon ◽  
The Earth ◽  
Future Theory

Late in 1510, Copernicus’s passion for astronomy resulted in his leaving the Bishop’s Palace in Lidzbark Warminski for a residence in Frauenburg. Very little of his work over the next few years is dated, but two pages of random notes in one of his astronomy books supply tantalizing clues to his future theory. ‘Canon days and the Little Commentary’ considers these clues and the questions that Copernicus needed to answer. What kept the planets moving? How would he deal with Ptolemy’s equants? Copernicus’s Little Commentary, thought to have been written in 1514 or a little earlier, explained his new arrangement of the sun, the earth, the moon, and the other planets.

The Dark Side of the Moon

2020 ◽  
pp. 279-298
Author(s):  
Emma Gee
Keyword(s):  
World System ◽  
Second Century ◽  
Dark Side ◽  
The Sun ◽  
The Moon ◽  
Life And Death ◽  
The Earth ◽  
The Face ◽  
The Universe

This chapter brings us from Plato to a second-century CE reception of his dialogues, in the work of Plutarch. It concentrates on one dialogue of Plutarch, the De facie in orbe lunae (On the Face in the Moon’s Disc). In the myth that concludes this dialogue, the speaker, Sulla, references Homer’s Elysium from Odyssey 4. But Sulla lifts the Homeric Elysium from “the ends of the earth,” up a level, so that it is situated in the moon. This sets the scene for the rest of Plutarch’s eschatological myth, in which Elysium is repositioned as part of an ascending world-system. Cosmos in Plutarch is the theater for soul. Soul and cosmos in Plutarch are bound up in a sequence of functional interrelationships. Plutarch’s tripartite cosmos functions like the human entity and in fact is the physical area of operation in the life and death of the human entity. There is a truly intertwined relationship between the tripartite human entity and the tripartite cosmos: a three-stage cosmos gives a three-stage cycle of death to life and back, from the sun to the moon to the earth, over and over again. Plutarch’s whole cosmos takes on the role of an afterlife landscape. The De facie gives us the clearest instance we’ve yet seen of the phenomenon of psychic harmonization, in which the soul is entirely integrated with the universe.

The Roles Played of Semantic Theory Found in Novel the Moon that Embracing the Sun Translation

2016 ◽  
Vol 2 (1) ◽  
Author(s):  
I Wayan Suryasa
Keyword(s):  
Translation Studies ◽  
Semantic Theory ◽  
The Other ◽  
The Sun ◽  
The Moon ◽  
Other Hand

This paper was at knowing the role of semantic theory towards translation studies. There were some point that discussed in this study included to how complex the meaning related in translation. In one hand, the research was conducted to explore about semantic contribution in translation and the other hand, as well as to explain more that semantic was a translation. It was to mean that in doing translation, semantic has an important aspect on it. The data were taken from novel entitled The Moon That Embracing the Sun. The result of this study saw that semantic has important role at involving to be understandable by the reader. In novel, it was applied a figurative languages, which dominates the reader to be interested and knowing more about the story was. Those figurative languages were metaphor, personification, hyperbole, simile, and synecdoche. The most used was metaphor.

scholarly journals Researches in physical astronomy

1837 ◽  
Vol 3 ◽  
pp. 51-52
Keyword(s):  
Differential Equations ◽  
Great Distance ◽  
Original Position ◽  
Lunar Theory ◽  
Great Length ◽  
The Moon ◽  
The Earth ◽  
Method Of Solution ◽  
Independent Variable ◽  
The One

The first part of this paper relates to the theory of the moon. The method of solution pursued by Clairaut consisted in the inte­gration of differential equations, in which the true longitude of the moon is the independent variable: the time is then obtained in terms of the true longitude; and by the reversion of series, the lon­gitude afterwards obtained in terms of the time. This method is the one adopted by Mayer, Laplace, and Damoiseau. The au­thor has been led, by reflecting on the difficulties of this problem, to believe that the integration of the differential equations in which the time is the independent variable would be at least as easy as the former process; and it would possess the advantage of employing the same system of equations for the moon as for the planets. The lunar theory proposed by the author, and developed in this paper, is an extension of the equations given in his former Researches in Physical Astronomy, already published in the Philosophical Trans­actions; by including those terms, which, in consequence of the great eccentricity of the moon’s orbit, are sensible; and by sup­pressing those which are insensible from the great distance of the sun, the disturbing body. He has not yet attempted to obtain numerical results, but proposes at some future time to engage in their computation. In the second part of the paper, he investigates the precession of the equinoxes, on the supposition that the earth revolves in a re­sisting medium; an investigation which may also be considered as a sequel to the author’s last paper on Physical Astronomy. The effects of the resistance of such a medium is to increase the latitude of the axis of rotation (reckoned from the equator of the figure) till it reaches 90°. Such is now the condition of the axis of the earth: but as the chances are infinitely great against this having been its original position, may not its attainment of this position be ascribed to the resistance of a medium of small density acting for a great length of time, —a supposition which may account for many geological indications of changes having taken place in the climates of the earth ? The operation of such a cause would be also sen­sible in the case of comets: and the accuracy with which the ec­centricity of the Halleian comet of 1759 is known, would appear to afford a favourable opportunity of verifying this hypothesis.

scholarly journals Theory of the Libration of the Moon

1983 ◽  
Vol 74 ◽  
pp. 37-37
Author(s):  
M. Dubois-Moons
Keyword(s):  
Gravity Field ◽  
Orbital Motion ◽  
Lunar Theory ◽  
The Sun ◽  
Lunar Gravity ◽  
The Moon ◽  
Fourth Degree ◽  
Lunar Gravity Field ◽  
The Earth ◽  
Second Degree

AbstractThe paper presents a new theory of the libration of the Moon, completely analytical with respect to the harmonic coefficients of the lunar gravity field. This field is represented through its fourth degree harmonics for the torque due to the Earth (the second degree for the torque due to the Sun). The Moon is assumed to be rigid and its orbital motion is described by the ELP 2000 solution (Chapront and Chapront-Touzé 1981) for the main problem of lunar theory with planetary perturbations and influence of the non-sphericity of the Earth. Comparisons with other theories (Migus 1980 and Eckhardt 1981) are also presented.

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