Anaximander and the Architects
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Tunnel of Eupalinos -- Civil Engineering -- Law of Sines Project
Tunnel of Eupalinos -- Civil Engineering -- Law of Sines Project 1 © 2017 NextLesson NextLesson is not affiliated with persons or brands mentioned. Tunnel of Eupalinos -- Civil Engineering -- Law of Sines Project 2 NextLesson is not affiliated with persons or brands mentioned. © 2017 NextLesson Tunnel of Eupalinos -- Civil Engineering -- Law of Sines Project 3 © 2017 NextLesson NextLesson is not affiliated with persons or brands mentioned. One of the greatest engineering achievements of ancient times is a water tunnel, 1,036 meters (4,000 feet) long, excavated through a mountain on the Greek island of Samos in the sixth century B.C. 30 ENGINEERING & SCIENCE NO. 1 The Tunnel of Samos by Tom M. Apostol One of the greatest engineering achievements of for a Project MATHEMATICS! video program, ancient times is a water tunnel, 1,036 meters and realized that the engineering problem actually (4,000 feet) long, excavated through a mountain consists of two parts. First, two entry points have on the Greek island of Samos in the sixth century to be determined at the same elevation above sea Facing page: This 1884 B.C. It was dug through solid limestone by two level; and second, the direction for tunneling map by Ernst Fabricius separate teams advancing in a straight line from between these points must be established. I will both ends, using only picks, hammers, and chisels. describe possible solutions for each part; but first, shows the tunnel running This was a prodigious feat of manual labor. The some historical background. obliquely through the hill intellectual feat of determining the direction of marked as Kastro, now tunneling was equally impressive. -
The Fairy Tale Sleeping Beauty and the Year 2020 by Richard John Fraser Cooper
The Fairy Tale Sleeping Beauty and the Year 2020 By Richard John Fraser Cooper Who has not been taken aback by the unprecedented events of this year? Going forward, we are undoubtedly in a time of change, but what kind of change, and what may be learnt from times of change that have gone before? Much can be learnt when we more deeply question the events of one hundred years ago and see the movement of spiritual history in relation to 2020. Rudolf Steiner has drawn our attention to looking at history through the lens of 100 years. Each 100- year phase carries 3 x 33 1/3 years within it, to make a total of one hundred. Steiner showed how the rhythm of 331/3 years mirrors the life of Christ on earth, from birth to crucifixion and resurrection. It is therefore important to explore how we may reconnect with what was initiated 100 years ago, in its positive and negative aspects, to gain insight into mankind’s struggle toward the Christ impulse. 100 years ago from the ominous outbreak of the Coronavirus Crisis in 2020, the official implementation of the Treaty of Versailles was signed on the 10 January, 1920. The Treaty, enforcing reparation payments on Germany for its war guilt, was instrumental in laying the groundwork for the historical events that would later unfold; notably, the rearmament of Germany leading to the Second World War and the world order that would later emerge after 1945. Quite aptly, the signing had taken place in the Hall of Mirrors at the Palace of Versailles, in Paris, France, being rather symbolic of an elite struggling to pursue their own national and established political concerns separated from any of the spiritual implications of the decisions before them. -
The Magic of the Atwood Sphere
The magic of the Atwood Sphere Exactly a century ago, on June Dr. Jean-Michel Faidit 5, 1913, a “celestial sphere demon- Astronomical Society of France stration” by Professor Wallace W. Montpellier, France Atwood thrilled the populace of [email protected] Chicago. This machine, built to ac- commodate a dozen spectators, took up a concept popular in the eigh- teenth century: that of turning stel- lariums. The impact was consider- able. It sparked the genesis of modern planetariums, leading 10 years lat- er to an invention by Bauersfeld, engineer of the Zeiss Company, the Deutsche Museum in Munich. Since ancient times, mankind has sought to represent the sky and the stars. Two trends emerged. First, stars and constellations were easy, especially drawn on maps or globes. This was the case, for example, in Egypt with the Zodiac of Dendera or in the Greco-Ro- man world with the statue of Atlas support- ing the sky, like that of the Farnese Atlas at the National Archaeological Museum of Na- ples. But things were more complicated when it came to include the sun, moon, planets, and their apparent motions. Ingenious mecha- nisms were developed early as the Antiky- thera mechanism, found at the bottom of the Aegean Sea in 1900 and currently an exhibi- tion until July at the Conservatoire National des Arts et Métiers in Paris. During two millennia, the human mind and ingenuity worked constantly develop- ing and combining these two approaches us- ing a variety of media: astrolabes, quadrants, armillary spheres, astronomical clocks, co- pernican orreries and celestial globes, cul- minating with the famous Coronelli globes offered to Louis XIV. -
The Dark Shades of the Antikythera Mechanism
Journal of Radioanalytical and Nuclear Chemistry https://doi.org/10.1007/s10967-018-6255-9 (0123456789().,-volV)(0123456789().,-volV) The dark shades of the Antikythera Mechanism 1 2 3 Aristeidis Voulgaris • Christophoros Mouratidis • Andreas Vossinakis Received: 19 June 2018 Ó Akade´miai Kiado´, Budapest, Hungary 2018 Abstract In this work we analyze the dark shades which are evident on the AMRP X-ray positive Computed Tomographies and Radiographies of the Antikythera Mechanism ancient prototype. During 2000 years under the sea, the Mechanism bronze parts were totally corroded. The decreased X-ray absorption of the corroded bronze, allowed the CTs capture even in the thick large side of Fragment A. During the photometric analysis of the CTs, apart from corroded bronze, at least two other different (corroded) metal materials were detected, which were used by the ancient manufacturer during the construction of the Antikythera Mechanism. From our analysis and correlating with the mechanical evidence resulting by the use of our functional reconstruction models of the Antikythera Mechanism, we conclude that the existing design of the Antikythera Mechanism is probably the first of such a sophisticated design of the ancient manufacturer. Keywords Metals of Antikythera Mechanism Á Bronze corrosion Á Atacamite X-ray absorption Introduction Mechanism via the 2D X-ray and Thulium 170 radiation began by C. Karakalos of National Centre of Scientific The Antikythera Mechanism was found in 1901, in a Research ‘‘Demokritos’’ (Greece), in the 1970s. Karakalos shipwreck at 50 m depth, on a gulf of Antikythera island, took several film radiographies @160 keV [3]. The first Greece, by Symian sponge divers. -
On Nature and Grace: the Role of Reason in the Life of Faith
On Nature and Grace: The Role of Reason in the Life of Faith Peter Kalkavage St. John's College, Annapolis Theology on Tap Harry Browne's 2 July 2013 "Ever since the creation of the world his invisible nature, namely, his eternal power and deity, has been clearly perceived in the things that have been made." Romans 1:20 My goal this evening is to praise reason-that is, speculative reason-in the context of Christian faith. Speculative here refers to reason that seeks the truth for its own sake. Many voices inspired my effort: Clement of Alexandria, who extolled the wisdom of ancient Greek philosophers; Anselm, who spoke of faith seeking understanding; Augustine, whose path to God incorporated the philosophic eros for deathless truth; Bonaventure, who coined the remarkable phrase and title, itinerarium mentis in Deum, the mind's journey into God; and Dante, for whom the hallmark of heaven is the perfection of the mind. A more recently composed inspiration has been John Paul's great encyclical Fides et ratio ("Faith and Reason"). The hero of my reflections is Aquinas. As a young student, Thomas was unresponsive and seemed dull. But Albert the Great said something about him that turned out to be prophetic: "We call this young man a dumb ox, but his bellowing in doctrine will one day resound throughout the world." Aquinas is regularly in need of being rediscovered. I say this because he is a logically rigorous author, whom some readers find dry and uninspiring. Admittedly, his writing lacks the emotional power of Augustine's Confessions, the rhetorical energy of Anselm's Proslogion, and the inspired poetic flights of Dante. -
Pos(Antikythera & SKA)018
Building the Cosmos in the Antikythera Mechanism Tony Freeth1 Antikythera Mechanism Research Project 10 Hereford Road, South Ealing, London W54 4SE, United Kingdom E-mail: [email protected] PoS(Antikythera & SKA)018 Abstract Ever since its discovery by Greek sponge divers in 1901, the Antikythera Mechanism has inspired fascination and fierce debate. In the early years no-one knew what it was. As a result of a hundred years of research, particularly by Albert Rehm, Derek de Solla Price, Michael Wright and, most recently, by members of the Antikythera Mechanism Research Project, there has been huge progress in understanding this geared astronomical calculating machine. With its astonishing lunar anomaly mechanism, it emerges as a landmark in the history of technology and one of the true wonders of the ancient world. The latest model includes a mechanical representation of the Cosmos that exactly matches an inscription on the back cover of the instrument. We believe that we are now close to the complete machine. From Antikythera to the Square Kilometre Array: Lessons from the Ancients, Kerastari, Greece 12-15 June 2012 1 Speaker Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. http://pos.sissa.it Building the Cosmos in the Antikythera Mechanism Tony Freeth 1. Ancient Astronomy Astronomy? Impossible to understand and madness to investigate... Sophocles Since astronomy is so difficult, I will try to keep everything as simple as possible! As all astronomers know well, the stars are fixed! When the ancients looked at the sky, they saw a number of astronomical bodies that moved relative to the stars. -
Mechanical Miracles: Automata in Ancient Greek Religion
Mechanical Miracles: Automata in Ancient Greek Religion Tatiana Bur A thesis submitted in fulfillment of the requirements for the degree of Master of Philosophy Faculty of Arts, University of Sydney Supervisor: Professor Eric Csapo March, 2016 Statement of Originality This is to certify that to the best of my knowledge, the content of this thesis is my own work. This thesis has not been submitted for any degree or other purposes. I certify that the intellectual content of this thesis is the product of my own work and that all the assistance received in preparing this thesis and sources have been acknowledged. Tatiana Bur, March 2016. Table of Contents ACKNOWLEDGMENTS ....................................................................................................... 1 A NOTE TO THE READER ................................................................................................... 2 INTRODUCTION ................................................................................................................ 3 PART I: THINKING ABOUT AUTOMATION .......................................................................... 9 CHAPTER 1/ ELIMINATING THE BLOCAGE: ANCIENT AUTOMATA IN MODERN SCHOLARSHIP ................. 10 CHAPTER 2/ INVENTING AUTOMATION: AUTOMATA IN THE ANCIENT GREEK IMAGINATION ................. 24 PART II: AUTOMATA IN CONTEXT ................................................................................... 59 CHAPTER 3/ PROCESSIONAL AUTOMATA ................................................................................ -
The Antikythera Mechanism, Rhodes, and Epeiros
The Antikythera Mechanism, Rhodes, and Epeiros Paul Iversen Introduction I am particularly honored to be asked to contribute to this Festschrift in honor of James Evans. For the last nine years I have been engaged in studying the Games Dial and the calendar on the Metonic Spiral of the Antikythera Mechanism,1 and in that time I have come to admire James’s willingness to look at all sides of the evidence, and the way in which he conducts his research in an atmosphere of collaborative and curious inquiry combined with mutual respect. It has long been suggested that the Antikythera Mechanism may have been built on the is- land of Rhodes,2 one of the few locations attested in ancient literary sources associated with the production of such celestial devices. This paper will strengthen the thesis of a Rhodian origin for the Mechanism by demonstrating that the as-of-2008-undeciphered set of games in Year 4 on the Games Dial were the Halieia of Rhodes, a relatively minor set of games that were, appro- priately for the Mechanism, in honor of the sun-god, Helios (spelled Halios by the Doric Greeks). This paper will also summarize an argument that the calendar on the Metonic Spiral cannot be that of Syracuse, and that it is, contrary to the assertions of a prominent scholar in Epirote stud- ies, consistent with the Epirote calendar. This, coupled with the appearance of the extremely minor Naan games on the Games Dial, suggests that the Mechanism also had some connection with Epeiros. The Games Dial and the Halieia of Rhodes The application in the fall of 2005 of micro-focus X-ray computed tomography on the 82 surviv- ing fragments of the Antikythera Mechanism led to the exciting discovery and subsequent publi- cation in 2008 of a dial on the Antikythera Mechanism listing various athletic games now known as the Olympiad Dial (but which I will call the Games or Halieiad Dial—more on that below), as well as a hitherto unknown Greek civil calendar on what is now called the Metonic Spiral.3 I begin with my own composite drawing of the Games Dial (Fig. -
The Draconic Gearing of the Antikythera Mechanism: Assembling the Fragment D, Its Role and Operation
The Draconic gearing of the Antikythera Mechanism: Assembling the Fragment D, its role and operation A.Voulgaris1, C.Mouratidis2, A.Vossinakis3, G.Bokovos4 (Submitted 14 January 2020) 1Municipality of Thessaloniki, Directorate Culture and Tourism, Thessaloniki, GR-54625, Greece 2Hellenic Ministry of Education, Research and Religious Affairs, Kos, GR-85300, Greece 3Thessaloniki Astronomy Club, Thessaloniki, GR-54646, Greece 4Thessaloniki Science Center and Technology Museum-Planetarium, Thermi, GR-57001, Greece Abstract The unplaced Fragment D of the Antikythera Mechanism with an unknown operation was a mystery since the beginning of its discovery. The gear-r1, which was detected on the Fragment radiographies by C. Karakalos, is preserved in excellent condition, but this was not enough to correlate it to the existing gear trainings of the Mechanism. The suggestion that this gear could be a part of the hypothetical planet indication gearing is still a hypothesis since no mechanical evidence has been preserved. After the analysis of AMRP tomographies of Fragment D and its mechanical characteristics revealed that it could be part of the Draconic gearing. Although the Draconic cycle was well known during the Mechanism’s era as represents the fourth Lunar cycle, it seems that it is missing from the Antikythera Mechanism. The study of Fragment D was supported by the bronze reconstruction of the Draconic gearing by the authors. The adaptation of the Draconic gearing on the Antikythera Mechanism improves its functionality and gives answers on several questions. 1. Introduction. The Antikythera Mechanism, a geared machine based on the lunar cycles The Antikythera Mechanism a creation of an ingenious manufacturer of the Hellenistic era was a geared machine capable of performing complex astronomical calculations, mostly based on the lunar periodic cycles. -
Downloadable
EXPERT-LED PETER SOMMER ARCHAEOLOGICAL & CULTURAL TRAVELS TOURS & GULET CRUISES 2021 PB Peter Sommer Travels Peter Sommer Travels 1 WELCOME WHY TRAVEL WITH US? TO PETER SOMMER TR AVELS Writing this in autumn 2020, it is hard to know quite where to begin. I usually review the season just gone, the new tours that we ran, the preparatory recces we made, the new tours we are unveiling for the next year, the feedback we have received and our exciting plans for the future. However, as you well know, this year has been unlike any other in our collective memory. Our exciting plans for 2020 were thrown into disarray, just like many of yours. We were so disappointed that so many of you were unable to travel with us in 2020. Our greatest pleasure is to share the destinations we have grown to love so deeply with you our wonderful guests. I had the pleasure and privilege of speaking with many of you personally during the 2020 season. I was warmed and touched by your support, your understanding, your patience, and your generosity. All of us here at PST are extremely grateful and heartened by your enthusiasm and eagerness to travel with us when it becomes possible. PST is a small, flexible, and dynamic company. We have weathered countless downturns during the many years we have been operating. Elin, my wife, and I have always reinvested in the business with long term goals and are very used to surviving all manner of curve balls, although COVID-19 is certainly the biggest we have yet faced. -
Reading Heidegger on Science
WHY READ HEIDEGGER ON SCIENCE? Trish Glazebrook Heidegger wrote extensively concerning science for more than sixty years. Four aspects of his analysis in particular demonstrate the breadth and scope of his sustained critique of science, and indicate specific trajectories for its further development. First, he has much to say to traditional philosophers of science concerning the experimental method, the role and function of mathematics and measurement, the nature of paradigms and incommensu- rabilty, and realism versus antirealism. Second, his assessment of technol- ogy is incipient in and arises from his reading of the history of physics, so theorists who overlook this aspect of his work may find they are working with a deficient theoretical framework when attempting to come to terms with his critique of technology. Third, he offers rich conceptual resources to environmental philosophers, especially those who work at the intersection of environment and international development. Fourth, his arguments for reflection on science support a renewed sense of social obligation on the part of the sciences that should be of especial interest to science, technol- ogy, and society theorists. I have examined these first two issues elsewhere.1 Rather than repeat- ing that work here, I situate this volume against traditional philosophy of science only by showing briefly how his concern with science begins with a tension in his thinking between realism and idealism. On the second issue, I show here only how Heidegger’s thinking concerning Ge-stell arises directly from his prior thinking about basic concepts and the mathemati- cal in science. The issues of ecophenomenology and the social obligations of the sciences are continuations of fertile and promising lines of thinking Heidegger opened. -
Green Politics and the Concept of Nature: Heidegger, Nature
Green Politics and the Concept of Nature: Heidegger, Nature and the Earth Reetta Vaahtoranta Thesis submitted in fulfilment of the requirements for the degree of Ph.D. Department of International Politics Aberystwyth University September, 2014 1 Summary This thesis investigates the role that the concept of nature plays in green politics. Nature, in the green literature, is usually assumed to refer to the nonhuman environment. But critics of this way of thinking about nature argue that humans exist in such interconnected networks with their environments that environments cannot be divided into categories of human and nonhuman. These criticisms suggest that we should abandon talking about nature and concentrate instead on investigating the complex relationships we share with our environments. But even in the light of these criticisms the idea of nature does seem to articulate something important about green politics which cannot be communicated by just investigating the relationships that we share with our environments. I turn to the philosophy of Martin Heidegger to make sense of this concept of nature. Heidegger makes numerous references to the unfolding of nature and the earth in his works. His philosophy has thus been used to make sense of what is at stake in taking care of our environments. In mainstream green readings of Heidegger, nature is understood as referring to the spontaneous growth of a nonhuman nature. However, I will approach nature in Heidegger’s work differently, divorcing these concepts of nature and the earth from descriptions of the material growth of nonhuman natural beings. This allows us to understand the importance of the idea of nature in green politics.