21. Demosthenes, Speeches 51-61 More results from www.perseus.tufts.edu Dictionary of Greek and Roman Biography and Mythology, page 574 (v. 1)When Dion afterwards returned to Syracuse, callippus accom­panied him, Notwithstanding this, callippus formed at last a conspiracy against the life of http://www.perseus.tufts.edu/cgi-bin/text?lookup=dem. 52.1&vers=greek

22. REGISTER VAN NAMEN callippus (redenaar) 1399 a 16, 1399 a 16n, 1400 a 4, 1400 a 4n Uiteindelijkwerd hij vermoord in opdracht van callippus. Diogenes 1411 a 24 http://perswww.kuleuven.ac.be/~u0013314/retorica/namindex.htm

REGISTER VAN NAMEN Academie 1356 b 32n, 1406 b 31n naam van de circa 385 vC door Plato gestichte 'school', in de vorm van geregelde filosofische discussies met een groep vrienden en leerlingen in het gelijknamige Atheense heiligdom en gymnasium (een ruimte voor sportbeoefening en sociale ontmoetingsplaats voor jongens en mannen). Ook Aristoteles behoorde tot deze groep leerlingen en Plato vertrouwde hem mettertijd ook het onderricht toe in sommige disciplines, onder andere de retorica. Toen Plato stierf en als hoofd van de Academie opgevolgd werd door Speusippus, verliet Aristoteles echter in 347 vC de Academie en vertrok uit Athene. Achaeërs (zie ook onder Sophocles) 1402b 18, 1407 b 34. in de enge zin slaat dit op één bepaalde Griekse volksstam, verbonden met de landstreek Achaia, maar in episch taalgebruik is het een synoniem voor de Grieken in het algemeen. Achilles 1359 a 3, 1363 a 19, 1378b 32, 1380 b 29,1396 a 25,1396 b 15, 1396 b 19n, 1397 b 24,1401 b 1413 a 30n, 1416 b 27, 1418 b 36

23. Callippus EclipsesOne hundred years later, callippus objected to the system of Meton on the ground Meton was correct to the second decimal figure, callippus to the third, http://www-history.mcs.st-and.ac.uk/history/Mathematicians/Callippus.html

Callippus of Cyzicus Born: about 370 BC in Cyzicus, Asia Minor (now Turkey) Died: about 310 BC Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing The dates given for the birth and death of Callippus of Cyzicus are guesses but he is known to have been working with Aristotle in Athens starting in 330 BC. We know that Callippus was a student in the School of Eudoxus . We also know that he made his astronomical observations on the shores of the Hellespont, which can be deduced from the observations themselves. Simplicius writes in his commentary on De caelo by Aristotle (see for example [1]):- Callippus of Cyzicus, having studied with Polemarchus, Eudoxus ' pupil, following him to Athens dwelt with Aristotle , correcting and completing, with Aristotle 's help, the discoveries of Eudoxus Callippus made accurate determinations of the lengths of the seasons and constructed a 76 year cycle comprising 940 months to harmonise the solar and lunar years which was adopted in 330 BC and used by all later astronomers. This calendar of Callippus is examined in detail by van der Waerden in [6].

24. ARTICLE: A Brief History Of Time callippus improved upon Eudoxus theory of concentric spheres by adding an Its most fundamental difference from Eudoxus and callippus cosmologies was http://www.theorderoftime.com/science/sciences/articles/abriefhistoryoftime.html

A Brief History of Time (with apologies to Stephen Hawkings) From Thales to Callippus by: C. W. April 9, 1995 Presented by Gr. C. email at the Perseus project Abstract: A brief overview of the history of our western time management. From the perspective of the ancient greek philosophers are so issues discussed in the development of our modern time-awareness. With the old philosophers setting the foundation for the modern understanding of chronology is explained that much depended on a calendar correct for agricultural purposes. Table of Contents Introduction Initial Evidence of Time The Presocratics Changing Attitudes Towards Time ... Look at the comments on this paper. Introduction Whether for agricultural, legal, or religious purposes, the ability to measure time was of the utmost importance in ancient Greece. Homer and Hesiod both suggest that men recognized some connection between the sun, stars, moon, earth, and time, but were unable to observe very effectively the cosmos for purposes of chronology. Only with the advancement of astronomy, beginning with Thales in the early sixth century BC, could the Greeks begin to utilize the heavens for designing accurate calendars and sundials. Eventually, Plato, in his Timaeus, would declare, "The sun, moon, and... planets were made for defining and preserving the numbers of time. "

25. Callippus wwwhistory.mcs.st-andrews.ac.uk/References/Callip energy and matter aim 1 not dynamic- differed only in details from the model proposed by Eudoxus andcallippus. callippus posited 33 spheres; Aristotle added 22 new spheres, http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Callippus.html

Callippus of Cyzicus Born: about 370 BC in Cyzicus, Asia Minor (now Turkey) Died: about 310 BC Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index Version for printing The dates given for the birth and death of Callippus of Cyzicus are guesses but he is known to have been working with Aristotle in Athens starting in 330 BC. We know that Callippus was a student in the School of Eudoxus . We also know that he made his astronomical observations on the shores of the Hellespont, which can be deduced from the observations themselves. Simplicius writes in his commentary on De caelo by Aristotle (see for example [1]):- Callippus of Cyzicus, having studied with Polemarchus, Eudoxus ' pupil, following him to Athens dwelt with Aristotle , correcting and completing, with Aristotle 's help, the discoveries of Eudoxus Callippus made accurate determinations of the lengths of the seasons and constructed a 76 year cycle comprising 940 months to harmonise the solar and lunar years which was adopted in 330 BC and used by all later astronomers. This calendar of Callippus is examined in detail by van der Waerden in [6].

26. Aristotle's Cosmos callippus (b. ca. 370 BC) increases this to 34. Aristotle improves on callippusby including additional spheres to counteract some of the motions of the http://ls.poly.edu/~jbain/mms/handouts/mmstotle.htm

Return to Magic, Medicine and Science homepage Return to Magic, Medicine and Science syllabus Aristotle's Cosmos *Aristotle, Metaphysics Book XII, Chap 8

27. Science In Christian Perspective In the next few decades, callippus offered further refinements. In the heavens,Aristotle employed the devices of Eudoxus and callippus to interpret http://www.asa3.org/ASA/PSCF/1973/JASA3-73Leith.html

Science in Christian Perspective Galileo and the Church: Tensions with a Message for Today Part I T. H. LEITH Atkinson College York University Toronto, Ontario, Canada From: JASA 25 (March 1973): 21-24. The year of 1973 has been designated Copernican Year in honor of the 500th anniversary of the birth of Copernicus M 1473. In keeping with this commemoration, the journal ASA offers o four-port publication of a paper presented by T. H. Leith at the 1972 Convention of the American Scientific Affiliation at York University. Introduction The Copernican revolution began in the first decade of the Sixteenth century in an unpublished manuscript, entitled the Commentary, by a rather obscure household physician in a bishop's palace in northern Europe. Some thirty years later the seeds of its heliocentric reformation of astronomy were to find a stony reception in the minds of two other reformers: Luther called its author a fool and Melanchthon was prodded by it to remark that "wise governments ought to repress the impudence of the intellectuals ". In 1543 there appeared in print Copernicus' full defence of his unsettling scheme, the Revolutions of the Heavenly Spheres.

28. PSIgate - Physical Sciences Information Gateway Search/Browse Results This site provides a biography of callippus (approx 370310BC). callippus constructeda calendar with a 76 year cycle to harmonise the Solar and Lunar years http://www.psigate.ac.uk/roads/cgi-bin/psibrowse.pl?limit=0&toplevel=policy&subj

29. Libanius, Hypotheses To The Orations Of Demosthenes But according to callippus, Lycon freely gave the money to him, According toApollodorus, since it was impossible for callippus to persuade Pasion to http://www.stoa.org/projects/demos/article_libanius?page=47&greekEncoding=Unicod

30. Vitrum: The Crystalline Celestial Spheres callippus of Cyzicus (IV century BC) made these models more faithful to The models of Eudoxus and callippus were probably mere geometric constructions. http://brunelleschi.imss.fi.it/vitrum/emodello_09.html

SEARCH: in Vitrum entire site INFO INSTITUTE MUSEUM ENGLISH Vitrum Models Gallery The crystalline celestial spheres Mathematician Eudoxus of Cnidus (IV century B.C.) conceived a series of geometric models to explain the complex motions of the planets with respect to the Earth, considered immobile at the centre of the Universe. Each model employed three or four spheres concentric to the Earth, and uniformly revolving one inside the other. Callippus of Cyzicus (IV century B.C.) made these models more faithful to the phenomena observed, increasing the number of spheres up to four or five per planet. The models of Eudoxus and Callippus were probably mere geometric constructions. And yet, when he laid out the physical architecture of the Cosmos, the philosopher Aristotle (384-322 B.C.) decided to join these models into a single celestial machine. Movement was propagated by contiguity and progressively decreased from the outer regions of the World towards the inner regions. It began in the highest and fastest of the stars, and was passed in order to the spheres of Saturn, Jupiter, Mars, Mercury, Venus and the Sun, finally reaching the lowest and slowest sphere, the Moon. In order to connect the models of Eudoxus and Callippus, Aristotle introduced a consistent number of additional spheres, up a total of 55 ( Metaphysics , XII, 8). All of the celestial spheres were formed of crystalline matter, innate, eternal, incorruptible, imponderable and perfectly transparent (

31. IMSS - Multimedia Catlogue - In Depth - Astronomical Systems A generation later, callippus of Cyzicus perfected Eudoxus s system by introducingseven additional spheres two for the Sun and two for the Moon to account http://brunelleschi.imss.fi.it/catalogo/genappr.asp?appl=SIM&xsl=approfondimento

32. Table Of Contents EUDOXUS (AND callippus). System of concentric spheres Cycles of Meton,callippus, and Hipparchus . HIPPARCHUS. Hipparchus cycle http://web.doverpublications.com/cgi-bin/toc.pl/0486266206

American History, American...... American Indians Anthropology, Folklore, My...... Antiques Architecture Art Bridge and Other Card Game...... Business and Economics Chess Children Clip Art and Design on CD-...... Coloring Books Cookbooks, Nutrition Crafts Detective, Ghost , Superna...... Dover Patriot Shop Ethnic Interest Features Gift Certificates Gift Ideas History, Political Science...... Holidays Humor Languages and Linguistics Literature Magic, Legerdemain Military History, Weapons ...... Music Nature Performing Arts, Drama, Fi...... Philosophy and Religion Photography Posters Psychology, Education Puzzles, Amusement, Recrea...... Science and Mathematics Shakespeare Shop Sociology, Anthropology, M...... Sports, Out-of-Door Activi...... Stationery, Gift Sets Stationery, Seasonal Books...... Summer Fun Shop Summer Reading Shop Teacher's Store Travel and Adventure Women's Studies Greek Astronomy by Sir Thomas L. Heath ISBN: 0486266206 Dover Publications Price: $11.95 click here to see this book Superb scholarly study documents extraordinary contributions of Pythagoras, Aristarchus, Hipparchus, Anaxagoras, many other thinkers in laying the foundations of scientific astronomy. Essential reading for scholars and students of astronomy and the history of science. Accessible to the science-minded layman. Introduction. Table of Contents for Greek Astronomy PREFATORY NOTE INTRODUCTION EPIGRAM by PTOLEMY DOXOGRAPHY: THALES ANAXIMANDER PYTHAGORAS ALCMAEON XENOPHANES HERACLITUS PARMENIDES EMPEDOCLES ANAXAGORAS THE PYTHAGOREANS

33. Welcome To Callippus.com lunar cyclescallippus had determined experimentally a more precise value for the length ofthe tropical year. 76 tropical years would actually have been about 27758.417 http://www.callippus.com/

Click here to go to Welcome to callippus.com Click here to go to Welcome to callippus.com

34. Table Of Contents And Excerpt, Bers, Demosthenes, Speeches 50-59 Against callippus; 53. Against Nicostratus; 54. Against Conon; 55. The speechesAgainst Polycles (50), Against callippus (52), Against Nicostratus (53), http://www.utexas.edu/utpress/excerpts/exberdem.html

Skip navigation Advanced Search Search 5 1/2 x 8 1/2 in. 237 pp. ISBN 0-292-70921-8 $45.00, hardcover, no dust jacket Web Special: $30.15 ISBN 0-292-70922-6 $22.95, paperback Web Special: $15.38 Demosthenes, Speeches 50-59 Back to Book Description Translated by Victor Bers Table of Contents Introduction To This Volume By Victor Bers Table of Contents Series Editor's Preface (Michael Gagarin) Translator's Preface (Victor Bers) Series Introduction (Michael Gagarin) Oratory in Classical Athens The Orators The Works of the Orators Government and Law in Classical Athens The Translation of Greek Oratory Abbreviations Note on Currency Bibliography of Works Cited DEMOSTHENES Introduction to Demosthenes (Michael Gagarin) Life Works Style Significance Supplementary Bibliography Introduction to This Volume (Victor Bers) Apollodorus Text 50. Against Polycles 51. On the Trierarchic Crown 52. Against Callippus 53. Against Nicostratus 54. Against Conon 55. Against Callicles 56. Against Dionysodorus 57. Against Eubulides 58. Against Theocrines

35. Did God Say The Earth The Center Of The Universe? on earlier work from Aristotle, while Aristotle built on theories from Eudoxusand callippus. nor were Aristotle, Eudoxus, or callippus before them. http://home.teleport.com/~salad/4god/geo.htm

Did God Say the Earth is the Center of the Universe? Return Note: The above information was written by John P. Boatwright and is freely given. The information is simply my opinion based on how I perceive the content discussed. Anyone reading such should use their own judgement as to whether or not the information has any value to them. You may copy portions of the above opinions as long as a reference to this page is included and no text within said portion is altered. If copied to another medium other than the internet, include the entire text. The above content may change over time. Best wishes.

36. William Smith : A Smaller History Of [Ancient] Greece - Sicily callippus contrived to retain the sovereign power only a twelvemonth. A periodof anarchy followed, during which Dionysius made himself master of the city http://www.ellopos.net/elpenor/greek-texts/ancient-greece/history-of-ancient-gre

page url : http://www.ellopos.net/elpenor/greek-texts/ancient-greece/history-of-ancient-greece-18-sicily.asp HOME LANGUAGE LIBRARIES FORUM ... CONTACT William Smith, A Smaller History of [Ancient] Greece CHAPTER XVIII History of the Sicilian Greeks from the Destruction of the Athenian Armament to the Death of Timoleon HE AFFAIRS of the Sicilian Greeks, an important branch of the Hellenic race, deserve a passing notice. A few years after the destruction of the Athenian armament, Dionysius made himself master of Syracuse, and openly seized upon the supreme power (B.C. 405). His reign as tyrant or despot was long and prosperous. After conquering the Carthaginians, who more than once invaded Sicily, he extended his dominion over a great part of the island, and over a considerable portion of Magna Graecia. He raised Syracuse to be one of the chief Grecian states, second in influence, if indeed second, to Sparta alone. Under his sway Syracuse was strengthened and embellished with new fortifications, docks, arsenals, and other public buildings, and became superior even to Athens in extent and population. Dionysius was a warm patron of literature, and was anxious to gain distinction by his literary compositions. In the midst of his political and military cares he devoted himself assiduously to poetry, and not only caused his poems to be publicly recited at the Olympic games, but repeatedly contended for the prize of tragedy at Athens. In accordance with the same spirit we find him seeking the society of men distinguished in literature and philosophy. Plato, who visited Sicily about the year 389 from a curiosity to see Mount AEtna, was introduced to Dionysius by Dion. The high moral tone of Plato's conversation did not however prove so attractive to Dionysius as it had done to Dion; and the philosopher was not only dismissed with aversion and dislike, but even, it seems through the machinations of Dionysius, seized, bound, and sold for a slave in the island of AEgina. He was, however, repurchased by Anniceris of Cyrene, and sent back to Athens.

37. Callippus Alan C. Bowen Simplicius and the Early History of Greek L 8 about the views of Eudoxus and callippus concerning the number of As forcallippus, all one need suppose in addition is that he was aware of a http://www.mygoinfo.com/index.php/Callippus

MyGoInfo mygo.com Content from Wikipedia Find MyGoInfo Home MyGo.com Printable version Callippus From Wikipedia, the free encyclopedia. Wikipedia does not have an article with this exact name. Start the Callippus article Search for Callippus in other articles. Look for Callippus in Wiktionary, our sister dictionary project. Look for Callippus in the Commons, our repository for free images, music, sound, and video. If you have created this page in the past few minutes and it has not yet appeared, it may not be visible due to a delay in updating the database. Try purge , otherwise please wait and check again later before attempting to recreate the page. If you created an article under this title previously, it may have been deleted. See candidates for speedy deletion for possible reasons. Retrieved from " http://www.mygoinfo.com/index.php/Callippus All text is available under the terms of the GNU Free Documentation License (see for details). About Wikipedia Powered by MediaWiki

38. GoldenEssays - Astronomy - Free Essays, Free Research Papers, Free Term Papers, (North, p.867) Although scientists such as Eudoxus, callippus, and Aristotleall came up with Earth-centered systems based by providing a center for all http://www.goldenessays.com/free_essays/1/astronomy/heliocentrism.shtml

Can`t find essay here? Order custom written report. We offer high quality and quick writing for only $8.95 per page! Heliocentrism Bibliography Home: Free Essays, Book Reports and Essay Writing Top 100 Essay Sites Top 50 Essay Sites Top 25 Essay Sites ... Can`t find essay here? Order custom written report. We offer high quality and quick writing for only $8.95 per page!

39. Hipparchus: Information From Answers.com Anyway, Aristotle s pupil callippus of Cyzicus introduced his 76year cycle, So callippus may have obtained his data from Babylonian sources and his http://www.answers.com/topic/hipparchus-astronomer

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping Hipparchus Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css); Hipparchus (astronomer) For other uses of Hipparchus, see Hipparchus (disambiguation) Hipparchus Greek ) (circa 190 BC 120 BC ) was a Greek astronomer geographer , and mathematician . The ESA 's Hipparcos Space Astrometry Mission was named after him, as are the Hipparchus lunar crater and the asteroid 4000 Hipparchus Hipparchus was born in Nicaea (now Iznik, Turkey) and probably died on the island of Rhodes . He is known to have been active at least from 147 BC to 127 BC . Hipparchus is considered the greatest astronomical observer, and by some the greatest astronomer of antiquity. He was the first Greek to develop quantitative and accurate models for the motion of the Sun and Moon. For this he made use of the observations and knowledge accumulated over centuries by the Chaldeans from Babylonia . He was also the first to compile a trigonometric table, which allowed him to solve any triangle. With his solar and lunar theories and his numerical trigonometry, he was probably the first to develop a reliable method to predict

40. 330s BC: Information From Answers.com In the year 330 bce Astronomy Greek astronomer callippus b. Cyzicus (Turkey), c.370 bce , dc 300 bce , a student of Eudoxus, is a careful. http://www.answers.com/topic/330s-bc

showHide_TellMeAbout2('false'); Business Entertainment Games Health ... More... On this page: Wikipedia Mentioned In Or search: - The Web - Images - News - Blogs - Shopping 330s BC In the year bce Astronomy Greek astronomer Callippus [b. Cyzicus (Turkey), c. 370 bce , d. c. 300 bce ], a student of Eudoxus, is a careful observer who shows that at least 34 spheres are needed to account for the movements of the stars, Moon, and planets. See also bce Astronomy ce Astronomy Biology Theophrastus [b. Eresus, Lesbos, Greece, c. 372 bce , d. Athens, c. 287 bce ] writes major works describing and classifying plants, laying the foundations of botany. See also bce Biology Earth science Theophrastus classifies 70 different rocks and minerals, doing the first work known on rocks and minerals. Theophrastus, in The Book of Signs, the first known work on weather forecasting, tells how to predict the weather from common signs, such as a red sky at night or a ring around the Moon. See also 1337 Earth science Theophrastus describes relationships within communities of organisms. Wikipedia @import url(http://content.answers.com/main/content/wp/css/common.css); @import url(http://content.answers.com/main/content/wp/css/gnwp.css);

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