CLAVIUS Translate this page clavius, christopher, (Al.1538-It.1612), foi o astrônomo jesuíta que ajudou opapa Gregory XIII a introduzir o que é chamado agora o calendário gregoriano. http://www.geocities.com/cobra_pages/fm-clavius.html
Enciclopedia Católica Translate this page clavius, christopher Matemático y astrónomo (1538-1612) clavius, Claudius Cartógrafo danés (nació en 1388) Clavos Santos Clayton, James (Santiago) http://www.enciclopediacatolica.com/ci.htm
Re: Why Isn't There A Leap Year Every 100 Years The Jesuit astronomer christopher clavius helped Pope Gregory XIII to introducewhat is now called the Gregorian calendar. The Julian leapyear rule created http://128.252.223.112/posts/archives/jan99/916424545.Ot.r.html
Extractions: Hi Kate, Like many things that are passed as lore, there are a couple details about leap year that are not common knowledge. I found a couple online sources. Here is information on leap that I quote from http://www.usinfo.com/staff/rheil/LEAPYEAR.HTM The year is defined as being the interval between two successive passages of the Sun through the vernal equinox. Of course, what is really occurring is that the Earth is going around the Sun but it is easier to understand what is happening by considering the apparent motion of the Sun in the sky. Produced by the Information Services Department of the Royal Greenwich Observatory. More about Leap Year The Jesuit astronomer Christopher Clavius helped Pope Gregory XIII to introduce what is now called the Gregorian calendar. The Julian leap-year rule created 3 leap years too many in every period of 385 years. As a result, the actual occurrence of the equinoxes and solstices slowly moved away from their calendar dates. The date of the spring equinox determines the date of Easter so the church began to press for reform.
Book Review The American Historical Review, 109.1 The This was the view and program of christopher clavius, the founder of a mathematicalacademy at the Roman College for Jesuits with an aptitude for http://www.historycooperative.org/journals/ahr/109.1/br_117.html
Extractions: Set up your online account for the first time. AHA members can go to the AHA individual membership section to locate their member numbers. If you are not a member of the American Historical Association, you can: Join the AHA and receive many member benefits including print and electronic issues of the American Historical Review. Purchase a research pass to gain two hour access to the entire History Cooperative web site. You will have full access to current issues of the American Historical Review (104.3-present). Note: the Research Pass does not provide access to JSTOR's holdings of the American Historical Review. Instititutions can: Subscribe to this journal and receive print and electronic issues.
UB Karlsruhe on Mathematics Written by christopher clavius, SJ / clavius, christopher 5.The Jesuit Ratio Studiorum, christopher clavius, and the Study of http://www.ubka.uni-karlsruhe.de/hylib-bin/suche.cgi?opacdb=ZID02&rn=17844968&Ba
Extractions: Openbook Linked Table of Contents Front Matter, pp. i-xviii 1. From the Depths of Time: The Earliest Recorded Eclipses, pp. 1-36 2. The Heavenly Cycles, pp. 37-67 3. Making Predictions, pp. 68-104 4. A Warp in Space, pp. 105-124 5. The Turbulent Sun, pp. 125-146 6. Ancient Eclipses and the Length of the Day, pp. 147-160 7. Eclipses and the Size of the Sun, pp. 161-173 8. The American Eclipses of 1780 and 1806, pp. 174-195 9. The Rocky Mountain Eclipse of 1878, pp. 196-212 10. The Great New York City Winter Eclipse, pp. 213-228 11. Nantucket, the Astronomically Blessed, pp. 229-244 12. Eclipses of the Third Kind, pp. 245-272 13. ...and a Fourth, pp. 273-309
Extractions: Openbook Linked Table of Contents Front Matter, pp. i-xviii 1. From the Depths of Time: The Earliest Recorded Eclipses, pp. 1-36 2. The Heavenly Cycles, pp. 37-67 3. Making Predictions, pp. 68-104 4. A Warp in Space, pp. 105-124 5. The Turbulent Sun, pp. 125-146 6. Ancient Eclipses and the Length of the Day, pp. 147-160 7. Eclipses and the Size of the Sun, pp. 161-173 8. The American Eclipses of 1780 and 1806, pp. 174-195 9. The Rocky Mountain Eclipse of 1878, pp. 196-212 10. The Great New York City Winter Eclipse, pp. 213-228 11. Nantucket, the Astronomically Blessed, pp. 229-244 12. Eclipses of the Third Kind, pp. 245-272 13. ...and a Fourth, pp. 273-309
PSIgate - Physical Sciences Information Gateway Search/Browse Results christopher clavius Born 25 March 1538 in Bamberg (now in Germany) Died 2 Feb1612 in Rome (now in Italy) Click the picture above to see two larger http://www.psigate.ac.uk/roads/cgi-bin/search_webcatalogue.pl?term1=Bam&limit=0
History Of Astronomy: Persons (C) clavius Klau, Christoph christopher (15381612). Biography, relation toGalileo and references Biographical data and references Short biography and http://www.astro.uni-bonn.de/~pbrosche/persons/pers_c.html
Gregorijanski Kalendar 3 christopher Clau (clavius) je bio veoma uvaena licnost u doba Galileo Galilea.Roden je u Bavarskoj (Nemacka) 1538. a umro u Rimu 2. feb.1612. http://www.astronomija.co.yu/kalendar/knjiga/kalendari/gregorijanski.htm
Extractions: GREGORIJANSKI KALENDAR Videli smo da je srednja julijanska godina dua od prirodne (tropske) za ~ 11 minuta i 14 sekundi . Poto se ta razlika stalno akumulira, ona za priblino 128 godina iznosi 1 dan. Za 400 godina ta razlika naraste na 3 dana 2 sata 52 minuta i 48 sekundi, a za 800 godina naraste na 6 dana 5 sati 45 minuta i 36 sekundi . Da zvanièni kalendar ne bi iao (urio) ispred prirodnog, bilo je potrebno izvriti njegovu prepravku. Rimski papa Gregorius (Grgur) XIII je 24. februara 1582. godine obznanio reformu do tada postojeæeg, julijanskog kalendara, predloenu od strane nemaèkog jezuite i astronoma Christophera Claviusa ,a uz pomoæ napuljskog astronoma i fizièara Aloysiusa Liliusa . Papina bula (ili dekret) koji je sadravao tu reformu nazvana je Inter Gravissimas , po prve dve reèi u tom tekstu. Te reèi na latinskom jeziku znaèe "
Nuestra Comunidad Página 7 Translate this page christopher clavius (1538-1612). Dr. Ernesto Meneses* La influencia de claviusno se limitó a las escuelas de Europa sino que se extendió hasta China http://www.uia.mx/actividades/nuestracom/00/nc90/7.html
Easter after the the Jesuit mathematician and astronomer christopher clavius (15371612), Later, the largest crater visible on the Moon was named clavius. http://www.friesian.com/easter.htm
Extractions: The Determination of Easter, On both the Julian and the Gregorian Calendars In 2005, on the Gregorian calendar (Western Churches), Septuagesima Sunday falls on January 23rd, Ash Wednesday on February 9th, Easter on March 27th, and Pentecost on May 15th. On the Julian calendar (Eastern Churches), Septuagesima Sunday falls on February 27th, Ash Wednesday on March 16th, Easter on May 1st, and Pentecost on June 19th. This is an unusally large separation between Western and Eastern Easter, five weeks. Those who may pass on Mardi Gras, on February 8th, as being too cold, might consider observing Julian Mardi Gras instead, on March 15th. Easter is the most important Christian feast. Christmas seems to draw more enthusiasm from most people, and even non-Christians observe many of the traditional Christmas rituals; but few non-Christians pay much attention to Easter (except perhaps for Easter Parades , where everyone has an excuse to wear strange hats). For the
Extractions: Science and Religion: Lessons from History? JOHN BROOKE John Brooke is professor of the History of Science at Lancaster University. He authored the prize-winning Science and Religion: Some Historical Perspectives (Cambridge University Press, 1991), and, with Geoffrey Cantor, Reconstructing Nature: The Engagement of Science and Religion "
Christoph Clavius The Jesuit mathematician and astronomer christopher clavius Clau (15371612).Born in Bamberg in 1537, clavius joined the Jesuit order in 1555, http://web.hao.ucar.edu/public/education/sp/images/clavius.html
Extractions: The Jesuit mathematician and astronomer Christopher Clavius [Clau] (1537-1612). Born in Bamberg in 1537, Clavius joined the Jesuit order in 1555, and studied at Coimbra. Clavius was one of the major architect of the Gregorian calendar reform of 1582, and remained professor of mathematics at the Jesuit's Collegio Romano until his death on February 6 1612. In 1570 Clavius wrote what was to become one of the most influential textbook on astronomy of its days, in the form of a commentary on the so-called Spheres of Sacrobosco. In the catholic world, this was the textbook for three generations of astronomers, including Galileo , and most particularly for Jesuit astronomers throughout the world. In later editions of his book Clavius pronounced himself relatively favorably on the Copernican system as a mathematical model, but to the end of his life rejected its physical reality. Until Galileo's condemnation in 1633, this was also the official position of the Roman ecclesiastic authorities. Clavius was chief astronomer at the Jesuit's Collegio Romano at the time of Galileo's first telescopic discoveries, and was still quite active despite his advancing age. He pronounced himself favorably concerning the physical reality of most of these telescopic observations. His doing so effectively silenced the first wave of opposition to Galileo. He did not agree with all of Galileo's interpretations however, and in particular remained staunchly opposed to the notion of mountains on the Moon.
Galileo Father christopher clavius, Astronomer. Jon Marget. Little Monk. Jason Linkins.First Secretary. Brad CarnesStine. Second Secretary. Richard Dobson http://www.stmarksplayers.org/seasons/19971998/galileo/galileo.htm
Extractions: THE CHARACTERS THE PLAYERS Galileo Galilei Bill Prindle Andrea Sarti, as a boy and as a man Mary Kavalaskas, Chris Tully Mrs. Sarti, Galileo's housekeeper, Andrea's mother Diane Wilshere Ludovico Marsili, a rich young man Shawn Brickerd The Procurator of Padua University, Mr. Priuli Jon Marget Sagredo, Galileo's friend Michael Pemberton Virginia, Galileo's daughter, as a young girl and as a woman Sarah Hoptman, Thea Austen The Doge of Venice Fairfield Butt Mr. Matti, Ironfounder/Industrialist Kevin Sockwell Senators of Venice Alex Bastani
History Of New Year Celebrations Pope Paul III recruited several astronomers, principally the Jesuit ChristopherClavius (15371612), to come up with a solution. They built upon calendar http://www.twilightbridge.com/hobbies/festivals/newyear/julian.htm
Extractions: For many European institutions, we can thank the Romans (for good or for bad, though they too had their predecessors in the Greeks, Egyptians and Babylonians). So with the solar calendar currently in widespread use. Originally the Romans numbered years ab urbe condita, that is, "from the founding of the city" (of Rome, where much of the character of the modern world had its beginnings). Had this old calendar remained in use, 1996-01-14 would have been New Year's Day in the year 2749 a.u.c. Following his conquest of Egypt in 48 B.C. Julius Caesar consulted the Alexandrian astronomer Sosigenes about calendar reform (since the a.u.c. calendar then used by the Romans was completely inadequate to the needs of the emerging empire, which Caesar was poised to command, briefly as it turned out). The calendar which Julius Caesar adopted in the year 709 a.u.c. (what we now call 46 B.C.) was identical to the Alexandrian Aristarchus' calendar of 239 B.C., and consisted of a solar year of twelve months and of 365 days with an extra day every fourth year. It is unclear as to where or how Aristarchus arrived at this calendar, but one may speculate that Babylonian science was involved. As we can read in the excellent article, "The Western Calendar and Calendar Reforms" in the Encyclopedia Brittanica, Sosigenes decided that the year known in modern times as 46 B.C. should have two intercalations. The first was the customary intercalation of 23 days following February 23, the second, "to bring the calendar in step with the equinoxes, was achieved by inserting two additional months between the end of November and the beginning of December. This insertion amounted to an addition of 67 days, making a year of no less than 445 days and causing the beginning of March, 45 B.C. in the Roman republican calendar, to fall on what is still called January 1 of the Julian Calendar."
Extractions: Accueil Catalogues ventes et librairies Info du bibliophile Coin du Bibliophilie ... Recherches RESULTATS HOTEL DES VENTES DE RENNES - MARDI 19 OCTOBRE 2004 MANUSCRITS - PHOTOGRAPHIES - BEAUX-ARTS BRETAGNE ENCHERES SCP. LIVINEC - GAUDUCHEAU - JEZEQUEL 32, place des Lices - 35000 RENNES e-mail : art@rennesencherres.com EXPERT Eric SEGUINEAU - 24, Bld. Hennecart - 44500 La Baule. Tel - Fax : (33) 02.40.24.04.62. - e-mail : librairie.seguineau@wanadoo.fr i LIVRES ANCIENS Est : Est : Est : Barbier II-575 b. Est : Est : Est : Est : Rel. post. demi-basane, la page de titre manque. Est : 12 - DOMAT (Me.) - Les Loix Civiles dans leur ordre naturel; le Droit Public et Legum Delectus. P., Delalain 1777, 2 tomes en un fort volume in-folio. Est : Est : Barbier IV-1077 e. Est : Barbier IV-1073 f. Est : 18 - Livre d'Heures - Sancta Missa. Est : Mq. page de titre. Est : Barbier II-725 a. Est : Est : Est : Est : Est : Est : 30 - BERTHEROY Jean - Le Colosse de Rhodes, roman antique. P., Ollendorff 1909, fort in-12. Edition originale, un des 5 ex. num. sur Hollande, seul tirage de luxe. Est : Est : Est : Est : Est : Est : Est : Est : Est : Envoi de l'illustrateur.
New Page 1 Pope Paul III recruited several astronomers, principally the Jesuit ChristopherClavius (15371612), to come up with a solution. When Pope Gregory XIII was http://www.mi-card.com/osmart0/newyear.htm
Extractions: New Year Pavilion Welcome to New Year Pavilion - Start with A New Outfit Talk about New Year In the olden days, the New Year was celebrated at the beginning of Spring when plants are growing and the world is refreshed from the winter. It was Julius Caesar, King of the Roman Empire, who made the calendar revision to suit his empire. The calendar which Julius Caesar adopted in the year 46 B.C. consisted of a solar year of twelve months and of 365 days with an extra day every fourth year. Julius Caesar wanted to start the year on the Spring Equinox or the Winter Solstice, but yielded to the Roman Senate, which traditionally took office on January 1st, the start of the Roman civil calendar year, to adopt January 1st as the start of the year. Subsequently the Julian Calendar became widespread as a result of its use throughout the Roman Empire and later by various Christian churches, which inherited many of the institutions of the Roman world. Although the Julian calendar had been there for over a millennium and a half, a very basic controversy had not been sorted out. The average length of a year in the Julian Calendar is 365.25 days (one additional day being added every four years). This is significantly different from the "real" length of the solar year. This error accumulates so that after about 131 years the calendar is out of sync with the equinoxes and solstices by one day. Thus as the centuries passed the Julian Calendar became increasingly inaccurate with respect to the seasons. This was especially troubling to the Roman Catholic Church because it affected the determination of the date of Easter, which, by the 16th Century, was well on the way to slipping into Summer.
Extractions: Centre International Blaise Pascal La bibliothèque du dix-septiémiste (mise à jour le 22 juin 2005) DEUXIÈME PARTIE : OUVRAGES CRITIQUES V. Histoire des idées (suite) Généralités Sciences Philosophie Religion ... Auteurs étrangers 10. Auteurs étrangers Cavalieri Bonaventura FAVARO A., B. Cavalieri , Venise, 1915. Clavius Christopher Evidemment, Clavius est jésuite, et il appartient sans conteste au XVI e GIARD Luce (dir.), Les jésuites à la Renaissance. Système éducatif et production du savoir , P.U.F., 1995. KNOBLOCH Eberhard, "Sur la vie et l'œuvre de Christophore Clavius (1538-1621), Revue d'Histoire des Sciences , XLI, 3-4, juillet-décembre 1988, p. 331-356. ROMANO Antonella, , Rome, Ecole Française de Rome, 1999. Galilée BELLONE Enrico, Galilée Pour la science , coll. Les génies de la science , nov. 1999. Synthèse considérablement illustrée, qui peut servir d'introduction. CLAVELIN M., La philosophie naturelle de Galilée , Colin, Paris, 1968. Pour une compréhension approfondie ; mais difficile. DRAKE Stillman
Extractions: **** Indispensable. Nota bene : certains auteurs étrangers BOYLE Robert Nova experimenta physico-mechanica de vi aeris elastica, et ejusdem effectibus, facta maximam partem in nova machina pneumatica , T. Robinson, Oxoniae, 1661. CAMPANELLA Tommaso Apologia pro Galileo Apologie de Galilée , éd. Michel Pierre Lerner, Les Belles Lettres, Paris, 2001 ; La cité du soleil , traduite et précédée d'une introduction par Alexandre Zévaès, Vrin, Paris, 1982. CAVALIERI Bonaventura Geometria indivisibilibus continuorum nova quadam ratione promota , Bononiae, 1635 ; Lo Specchio ustorio overo trattato delle settioni coniche e alcuni loro mirabili effetti intorno al lume , Bologne, 1632 ; , Bononiae, 1640. Créateur de la géométrie des indivisibles CLAVIUS Christopher Algebra Christophori Clavii , Genevae, Stephanus Gamonetus, 1609 ;
