Geometry.Net - the online learning center
Home  - Scientists - Cassini Giovanni

e99.com Bookstore
  
Images 
Newsgroups
Page 1     1-20 of 92    1  | 2  | 3  | 4  | 5  | Next 20
A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

         Cassini Giovanni:     more detail
  1. Giovanni Domenico Cassini: An entry from Gale's <i>Science and Its Times</i> by Stephen D. Norton, 2001
  2. Cassini, Giovanni Domenico: An entry from Macmillan Reference USA's <i>Macmillan Reference USA Science Library: Space Sciences</i> by Stephen J. Edberg, 2002
  3. Selenographers: Gerard Kuiper, Selenography, Johannes Hevelius, Giovanni Domenico Cassini, Edmund Neville Nevill, Johann Heinrich Von Mädler
  4. French Astrologers: Gersonides, Pierre Gassendi, Dane Rudhyar, Michel Gauquelin, Giovanni Domenico Cassini, Serge Raynaud de la Ferriere
  5. People From the Province of Imperia: Luciano Berio, Carlo Amoretti, Mario Bava, Giovanni Domenico Cassini, Pasquale Anfossi, Claudio Scajola
  6. Discoverers of Moons: Galileo Galilei, Christiaan Huygens, Gerard Kuiper, William Herschel, Giovanni Domenico Cassini, Edward Emerson Barnard
  7. Jean Domenique Cassini and his world map of 1696, by Lloyd Arnold Brown, 1941
  8. Cassini?Huygens: NASA, European Space Agency, Italian Space Agency, Robotic spacecraft, Saturn, Moons of Saturn, Spacecraft, Giovanni Domenico Cassini, Huygens probe, Christiaan Huygens, Telemetry
  9. Traite De La Comete: Qui A Paru En Decembre 1743 (1744) (French Edition) by Jean Phillipe Loys De Cheseaux, Jacques Cassini, et all 2010-02-17
  10. Traite De La Comete: Qui A Paru En Decembre 1743 (1744) (French Edition) by Jean Phillipe Loys De Cheseaux, Jacques Cassini, et all 2010-09-10
  11. Traite De La Comete: Qui A Paru En Decembre 1743 (1744) (French Edition) by Jean Phillipe Loys De Cheseaux, Jacques Cassini, et all 2010-09-10
  12. MAPS AND THE IDEAS THEY EXPRESS.: An entry from Charles Scribner's Sons' <i>New Dictionary of the History of Ideas</i> by Norman Thrower, 2005

1. Giovanni Cassini
Brief information about the life of Cassini (16251712) and his discoveries.Category Science Astronomy History People Cassini, Giovanni......Giovanni Cassini. Welcome to my web page on Giovanni Cassini, a famousastronomer of the sixteenth century. He is the most well known
http://www.angelfire.com/stars3/starlett/
var Loaded=false;var Flag=false;
Giovanni Cassini
Welcome to my web page on Giovanni Cassini, a famous astronomer of the sixteenth century. He is the most well known for discovering Jupiter’s great red spot, and many of Saturn's moons. Currently, there is an unmanned space shuttle heading for the planet Saturn. It blasted off from the Kennedy Space Center on October 17, 1997. It will reach Saturn in the year 2004, and will take photos of the surface of the planet and all it’s moon. It is named after Giovanni Domenico Cassini, the Cassini. Updates... Okay... a new site opened up about him! Its really helpful. Here Hey guys! It's been nearly a year since I first created this site, and I never expected it to get so huge! Look at all the hits! Keep voting in the poll to! 58 peeps! When I started this site, there were absolutly no sites out on Cassini. Hardly even books! Hopefully my site has helped you in some way or another! On your way out, I would be much obliged if you were to sign my Guestbook . Thank you all, especially to those who already have!

2. Cassini
Giovanni Domenico Cassini. Born Giovanni Cassini studied at the Jesuitcollege in Genoa and then at the abbey of San Fructuoso. From
http://www-gap.dcs.st-and.ac.uk/~history/Mathematicians/Cassini.html
Giovanni Domenico Cassini
Born: 8 June 1625 in Perinaldo, Republic of Genoa (now Italy)
Died: 14 Sept 1712 in Paris, France
Click the picture above
to see a larger version Show birthplace location Previous (Chronologically) Next Biographies Index Previous (Alphabetically) Next Main index
Giovanni Cassini studied at the Jesuit college in Genoa and then at the abbey of San Fructuoso. From 1648 to 1669 Cassini observed at Panzano Observatory and, in 1650, he became professor of astronomy at the University of Bologna. Cassini observed a comet in 1652-3 and again 1664-5 publishing details of his observations. His interests however were many other than astronomy. He was an expert in hydraulics and engineering and was consulted regarding the flooding of the river Po. He was employed by the Pope to oversee fortifications and worked for the Pope also as an expert on river management. Cassini was invited to Paris by Louis XIV in 1669. The senate of Bologna and the Pope agreed to the trip which they believed was only to be a short one. However Cassini became director of the Paris Observatory in 1671, becoming a French citizen two years later. He never returned to Italy. Cassini was the first to observe Saturn's 4 moons (1671 - 1672 - 1684 - 1684) and he discovered the gap in the ring system of Saturn now known as the Cassini division in 1675.

3. Giovanni Domenico Cassini
Giovanni Domenico Cassini. The rings and moons of Saturn. GiovanniDomenico Cassini (16251712, picture Paris observatory).
http://www.surveyor.in-berlin.de/himmel/astro/Cassini-e.html

Giovanni Domenico Cassini
The rings and moons of Saturn
Giovanni Domenico Cassini (1625-1712, picture: Paris observatory) Near Nice in the town Perinaldo Giovanni Domenico Cassini was born at the 8th of Juni 1625. Until 1650 he studied in Genua and Bologna and became (in the year of the death of Christoph Scheiner ) professor for astronomy and mathematics at the university of Bologna. He let built an observatory on the tower of the church St. Petronio and was mainly interested in the observation of comets. Mars according to G.D. Cassini 1663 he was ordered to fortify the citadel of the Italian town and archbishopric of Urbino. But while doing this he also continued to do astronomy, so he calculated the deformation of Jupiter and its rotation time. He watched the phases of Venus, discovered by Galileo Galilei (1564-1642), and also refined the visible surface marks of Mars. So besides of the Great Syrte discovered by Christiaan Huygens he discovered the polar caps of the red planet. 1668 the "sun king" Louis XIV. called Cassini to Paris as an observer to the academy of sciences. Here latest he met personally the university professor Christiaan Huygens. Cassini - now Jean-Dominique Cassini - became director of the Paris observatory, but this palace like building was not ready before 1672. Before the completion of the observatory some of the astronomical instruments, made by Giuseppe Campani arrived 1671 in Paris. These were up to 40 meter long refractor telescopes. Just in the presence of Huygens, the discover of Titan in 1655, Cassini saw another moon of Saturn: Japetus. The moon consists mainly of ice and has the special feature at the surface that nearly one half is very dark. Because of this the moon has a magnitude of around 10 at western elongation, while at eastern elongation it is about 2 magnitudes dimmer. This fact Cassini discovered at continuing observations of "his" moon. The dark area on Japetus, possibly originating by dark dust, is called after his discoverer Cassini region.

4. Giovanni Cassini
Giovanni Cassini. Saturn Home Go back to previous webpage Cassini,Giovanni Domenico (1625 1712). Cassini determined the
http://www.the-planet-saturn.com/astronomers/Giovanni-Cassini.html
Giovanni Cassini
Saturn Home Go back to previous webpage Cassini, Giovanni Domenico (1625 - 1712) Cassini determined the rotational periods of Jupiter and Saturn. He calculated the orbits of the 4 Galilean moons of Jupiter. Cassini discovered four of the moons of Saturn. He also discovered a gap in the rings of Saturn: thereafter named Cassini's division.
All pictures of famous astronomers are in the public domain except where stated otherwise.
This page was last updated on: April 24, 2002

5. Giovanni Cassini
Giovanni Cassini. Giovanni Cassini was ItalianFrench astronomer who lived between1625-1712. Picture of Giovanni Cassini Courtesy of Corbis-Bettmann.
http://www.windows.ucar.edu/tour/link=/people/enlightenment/cassini.html
Giovanni Cassini
Giovanni Cassini was Italian-French astronomer who lived between 1625-1712. He discovered that Saturn's Rings are split into two parts, and today the gap between them is called the "Cassini Division". He also discovered four of Saturn's moons , in addition to those found by Huygens twenty years earlier. Cassini studied hydrology and how to avoid the damaging floods that plagued Europe. His greatest mistakes were rejecting the Copernican model of the solar system and Newton's theory of universal gravitation.
Picture of Giovanni Cassini
Courtesy of Corbis-Bettmann
Last modified prior to September, 2000 by the Windows Team
The source of this material is Windows to the Universe , at http://www.windows.ucar.edu/

6. Astrohobby - Giovanni Cassini
GIOVANNI CASSINI. Giovanni Cassini (16251712) byl wloskim astronomem.Urodzil sie 8 czerwca 1625 roku w Perinaldo, kolo Nicei.
http://www.astrohobby.net/bio8.php
GIOVANNI CASSINI
TEMATY POKREWNE
FRIEDRICH BESSEL

TYCHO BRAHE

JOCELYN BELL BURNELL

ERNEST OPIK
... SK£AD REDAKCYJNY

7. Giovanni Domenico Cassini
Giovanni Domenico Cassini was born in Perinaldo in 1625, and alreadyas a student showed great talent in mathematics and astronomy.
http://www.hao.ucar.edu/public/education/sp/images/cassini.html
Jean Dominique (Giovani Domenico) Cassini (1625-1712)
Giovanni Domenico Cassini was born in Perinaldo in 1625, and already as a student showed great talent in mathematics and astronomy. He was trained in astronomy by two able astronomers, G.B. Riccioli and F.M. Grimaldi. Aged only 25, be was made Professor of Astronomy at the University of Bologna. Invited by the French King Louis XIV, to help in the design and construction of the forthcoming Observatoire de Paris, Cassini departed for France in 1669. Although his visit was originally intented to be limited duration, Cassini warmed up to France to the point of accepting the directorship of the Observatory in 1671, and never returned to Italy. He changed his name to Jean Dominique, and became a French citizen in 1673. He died in Paris on 14 September 1712. Cassini established his reputation in Italy by careful and accurate solar and planetary measurements, which allowed him to produce improved planetary tables, as well as improved versions of Galileo's tables for the moons of Jupiter , then of great interest because of their potential use for determining longitudes at sea. He was also involved in numerous engineering projects, including fortifications and hydraulics. While in Bologna Cassini also measured the rotation periods of Mars and Jupiter. As director of the Observatoire de Paris, Cassini inaugurated, among other projects, a sustained solar observing program. Carried out primarily by the Jesuit Jean Picard (1620-1682), and later by Philippe de La Hire (1640-1718), this program included sunspot observations as well as measurements of the solar diameter. Cassini's own interests remained in geodesy and planetary astronomy; He carried out extensive observations of Earth's Moon, and between 1671 and 1684 he discovered four Moons of Saturn (Iapetus, Rhea, Tethys and Dione). In 1675 he also discovered the main division of Saturn's ring, and correctly speculated on their physical constitution as being a collection of small debris.

8. Giovanni Cassini - Wikipedia
Giovanni Cassini. Giovanni Domenico Cassini was born June 8, 1625 at Perinaldo,Republic of Genoa (now Italy) and died September 14, 1712. Astronomy.
http://www.wikipedia.org/wiki/Giovanni_Cassini
Main Page Recent changes Edit this page Older versions Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk
Log in
Help
Giovanni Cassini
From Wikipedia, the free encyclopedia. Giovanni Domenico Cassini was born June 8 at Perinaldo Republic of Genoa (now Italy ) and died September 14
Astronomy
Observed at the Panzano Observatory from to . Became Professor of Astronomy at the University of Bologna and director of the Paris Observatory in . He was the first to observe four of Saturn's moons and gave his name to the Cassini Division , the gap between Saturn's rings.
Engineering
An expert on hydraulics and engineering, he was employed by the Pope on fortifications and river management and flooding of the River Po
Edit this page
Discuss this page Older versions ... Recent changes
It was last modified 11:51 Nov 13, 2002. All text is available under the terms of the

9. Giovanni Cassini - Wikipedia
Giovanni Cassini. (Redirected from Giovanni Domenico Cassini). GiovanniDomenico Cassini was born June 8, 1625 at Perinaldo, Republic
http://www.wikipedia.org/wiki/Giovanni_Domenico_Cassini
Main Page Recent changes Edit this page Older versions Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk
Log in
Help
Giovanni Cassini
(Redirected from Giovanni Domenico Cassini Giovanni Domenico Cassini was born June 8 at Perinaldo Republic of Genoa (now Italy ) and died September 14
Astronomy
Observed at the Panzano Observatory from to . Became Professor of Astronomy at the University of Bologna and director of the Paris Observatory in . He was the first to observe four of Saturn's moons and gave his name to the Cassini Division , the gap between Saturn's rings.
Engineering
An expert on hydraulics and engineering, he was employed by the Pope on fortifications and river management and flooding of the River Po
Edit this page
Discuss this page Older versions ... Recent changes
It was last modified 11:51 Nov 13, 2002. All text is available under the terms of the

10. IWF: Giovanni Domenico Cassini
Giovanni Domenico Cassini was born on June 8, 1625 in Perinaldo,near Nice, and died on September 14, 1712 in Paris. In 1671 he
http://www.iwf.oeaw.ac.at/english/research/solarsystem/planets/saturn/cassini/ca
Giovanni Domenico Cassini was born on June 8, 1625 in Perinaldo, near Nice, and died on September 14, 1712 in Paris.
In 1671 he became director of the Paris Observatory. He determined the rotation period of Jupiter and Mars and discovered four Saturnian satellites (Lapetus in 1671, Rhea in 1672, and both Tethys and Dione in 1684). In 1675 he discovered the gap in the ring system of Saturn, now known as the Cassini Division. Back to Cassini/Huygens main page

11. Giovanni Cassini
Giovanni Cassini, Giovanni Cassini was born on June 8th,1625 in Perinaldo,Imperia, Italy. Pages with more information, More info on Giovanni Cassini,
http://www.geocities.com/abbie32389/Giovanni_Cassini.html
Giovanni Cassini Giovanni Cassini was born on June 8th,1625 in Perinaldo, Imperia, Italy. He worked in the Panzon observatory form 1648-69. Then in 1950-69 he was a teacher at the University of Bologna. Then he worked in the Paris observatory in 1669.
EDUCATION
Giovanni went to Vallebone for 2 years. Then he went to Jesuit College in Genoa. After that he studied at the Abbey of San Fructuoso.
FAMILY
He married a French woman named Genevieve Delaitre in 1673. They has a son named Jacques Cassini. They had a grandson too named Cesar-Francois Cassini. Also a great grandson, Jean-Dominique Cassini.
He might have published more books but I only found one. It was on his observations of comets.
DISCOVERIES
Cassini discovered many things. One was Jupiter?s Great Red Spot in 1655. In Paris he discovered 4 of Saturn?s Moons. They were Rhea (in 1672), Iapetus (in 1671), Dione (in 1684), Tethys (also in 1684). He also discovered the gap between Saturn?s A and B rings, which is now called the Cassini Division.
INTERESTING FACTS
Some interesting facts about him are that he went blind in 1710 and retired. King Louis XIV invited him to France to work. He was also employed by the Pope. 4 generations of the Cassini?s (including him) worked in the Paris observatory.

12. Giovanni Cassini - Acapedia - Free Knowledge, For All
Friends of Acapedia Giovanni Cassini. Giovanni Domenico Cassini was born June 8,1625 at Perinaldo, Republic of Genoa (now Italy) and died September 14, 1712.
http://acapedia.org/aca/Giovanni_Cassini
var srl33t_id = '4200';

13. CATHOLIC ENCYCLOPEDIA: Giovanni Domenico Cassini
(Catholic Encyclopedia)Category Society Religion and Spirituality C......Home Catholic Encyclopedia C giovanni Domenico cassini. giovanniDomenico cassini. Astronomer, b. at Perinaldo (Nice, Italy), 8
http://www.newadvent.org/cathen/03405b.htm
Home Encyclopedia Summa Fathers ... C > Giovanni Domenico Cassini A B C D ... Z
Giovanni Domenico Cassini
Jesuit Riccioli, a friend and astronomer at Bologna, treating of the Immaculate Conception, and recommending that it be celebrated as a special feast. Cassini was principally an observer. We owe to him the calculation of the rotation periods of the planets Jupiter, Venus, and partly of Mars by means of observations of motions of spots on their disks. These results were very important in those days, because they furnished analogues to the disputed motion of the earth. With the aid of Campani's long telescope, he added four satellites of Saturn to the one that had been seen by Huyghens. he studied the causes of the librations of the moon, observed the zodiacal light, and developed a theory of the motion of comets. His first achievement was the re-establishment and improvement of the gnomon and the meridian, traced by Ignazio Dante in the church of St. Petronius, Bologna, for the purpose of fixing the time of the solstices and reforming the calendar. He was very industrious, and constantly held the attention of the public. He interested the king and the court in his work, and as director of the observatory trained a great number of astronomers among whom were many of the

14. Cassini - Dossier Zu Stichworten
Translate this page zum Anfang Cassini - Inhalt, Giovanni Domenico cassini giovanni Domenico Cassiniwurde 1625 in Italien geboren und hatte eine Professur für Astronomie und
http://www.friedenskooperative.de/themen/cassin06.htm
Erstellt:
Artikel

siehe auch:
Cassini-

radio-

aktiver

Bumerang
...
zu: Cassini - Inhalt

Cassini
Dossier zu einigen Stichworten

Regina Hagen, Roland Wolff Freisetzungen von Plutonium 1964 verglühte ein amerikanischer Satellit mit einer Plutoniumbaterie des Typs "SNAP 9-A" in etwa 50 Kilometer Höhe über dem Pazifik. Er hatte 1 Kilogramm Plutonium-238 an Bord. Über die Meßergebnisse wird nebenstehend berichtet. Nach Angaben der GSF wurden weitere Unfälle mit Plutonium-238-Generatoren bekannt, die aber nicht zu Freisetzungen geführt haben sollen. So die absichtliche Zerstörung eines Wettersatelliten der NASA 1978 nach einem Fehlstart. Zwei Behälter mit 1,3ù1015 Becquerel Plutonium-238 wurden danach unbeschädigt aus dem Pazifik geborgen. Seit dem Versagen von Apollo 13 liegen 1,6ù1015 Becquerel Plutonium-238 eingekapselt auf dem Boden des Pazifik. [4] zum Anfang Cassini - Inhalt Giovanni Domenico Cassini Giovanni Domenico Cassini wurde 1625 in Italien geboren und hatte eine Professur für Astronomie und Mathematik in Bologna inne. Später war er Direktor der Pariser Sternwarte. Während dieser Zeit entdeckte er vier neue Saturnmonde und fand die nach ihm benannte Cassinische Teilung, eine "Lücke" im Ringsystem des Saturn. Er starb 1712 in Paris. Nach ihm hat die NASA ihre Saturnsonde benannt, die auf einer Titan-IV-Rakete am 6. Oktober 1997 von Cape Canaveral aus starten soll. Die Europäische Raumfahrtagentur ESA beteiligt sich am Projekt mit dem Tochtersatelliten HUYGENS, der 2004 auf dem Saturnmond Titan landen soll und etwa drei Stunden Daten zur Erde funken kann. Sein Namensvater ist der holländische Astronom Huygens (1629-1695), der 1656 die tatsächliche Form der Saturnringe erkannte und etwa zeitgleich den hellsten Saturnmond Titan entdeckte. [6, 8]

15. Science Center Virtuale - Ae
Translate this page Cassini, Giovanni Domenico cassini giovanni Domenico Cassini (1625-1712), astronomoligure poi emigrato in Francia, fondatore dell'Osservatorio di Parigi.
http://www.torinoscienza.it/personaggi/ae
il progetto promotori redazione architettura ... recensioni personaggi parole cronologie dossier sperimentare ... attiva chi siamo approfondimenti divertirsi esplora La vita e le opere di alcuni tra i personaggi storici che hanno influenzato lo sviluppo della scienza e della tecnologia. Abbott Edwin Abbott Abbott
Agnesi Maria Gaetana Agnesi
Matematica milanese (1718-1799), si occup² di analisi matematica e di geometria. Amaldi Edoardo Amaldi
Fisico italiano (1908-1989) Amp¨re Andr© Marie Amp¨re
Andr© Maria Amp¨re (1775-1836), fisico francese, scopritore di molte propriet  dei campi elettrici e magnetici. Antinori Severino Antinori
Il medico italiano che vuole realizzare la clonazione umana Arrhenius Svante Arrhenius
Chimico-Fisico Balmer Johann Jakob Balmer
Johann Jakob Balmer (1825-1898), fisico sperimentale autore di importanti lavori nel campo della spettroscopia. Bethe Hans Albrecht Bethe
Hans Albrecht Bethe (1906-), il fisico teorico al quale dobbiamo la spiegazione del funzionamento del Sole come fonte di energia. Bohr Niels Bohr
Niels Bohr (1885-1962), fisico teorico danese creatore della scuola di Copenhagen.

16. Cassini
Giovanni Domenico Cassini. Show birthplace location. Giovanni Cassini studiedat the Jesuit college in Genoa and then at the abbey of San Fructuoso.
http://www-cassini.univ-mrs.fr/divers/Cassini.html
Giovanni Domenico Cassini
Born: 8 June 1625 in Perinaldo, Republic of Genoa (now Italy)
Died: 14 Sept 1712 in Paris, France
Show birthplace location Giovanni Cassini studied at the Jesuit college in Genoa and then at the abbey of San Fructuoso. From 1648 to 1669 Cassini observed at Panzano Observatory and, in 1650, he became professor of astronomy at the University of Bologna. Cassini observed a comet in 1652-3 and again 1664-5 publishing details of his observations. His interests however were many other than astronomy. He was an expert in hydraulics and engineering and was consulted regarding the flooding of the river Po. He was employed by the Pope to oversee fortifications and worked for the Pope also as an expert on river management. Cassini was invited to Paris by Louis XIV in 1669. The senate of Bologna and the Pope agreed to the trip which they believed was only to be a short one. However Cassini became director of the Paris Observatory in 1671, becoming a French citizen two years later. He never returned to Italy. Cassini was the first to observe Saturn's 4 moons (1671 - 1672 - 1684 - 1684) and he discovered the gap in the ring system of Saturn now known as the Cassini division in 1675.

17. Note Al Catalogo
cassini giovanniMaria attivo a Roma fine del XVIII secolo; Camocio Giovanni
http://www.antiquarius-sb.com/info.asp
Note al catalogo
Il presente catalogo contiene una ricca selezione delle incisioni esposte nel nostro negozio. I lotti elencati rappresentano le novità, le recenti acquisizioni, ed ovviamente gli oggetti di maggiore importanza e valore. Le altre vedute o carte geografiche che potrete trovare nella nostra sede, non sono catalogabili per ovvie ragioni di spazio; a richiesta è eventualmente possibile avere nota di stampe di vostro interesse.
  • Le dimensioni delle incisioni sono date in millimetri (larghezza per altezza) e si riferiscono, ove possibile, all'impronta del rame. Nel caso delle litografie, la misura è presa all'immagine.
  • Tutte le incisioni sono garantite originali ed in buono stato di conservazione, salvo indicazioni contrarie.
  • Eventualmente tutte le incisioni potranno, per chi ne farà richiesta, essere spedite a mezzo postale o tramite corriere. Le spese di spedizione sono a carico del committente, e la merce viaggerà a suo rischio e pericolo.
  • I prezzi sono espressi in dollari ed Euro (1 Euro = 1936.27 Lire italiane) e sono fissi.
  • Per tutti i possessori di Carte di credito del circuito Visa, Master Card, Euro Card, Cartasì è possibile il pagamento per corrispondenza.
  • 18. Giovanni Domenico Cassini
    Astronomer founded the Paris Observatory, studied a comet and the moons of Jupiter and Saturn, and worked with hydraulics and engineering.
    http://me.in-berlin.de/~jd/himmel/astro/Cassini-e.html

    Giovanni Domenico Cassini
    The rings and moons of Saturn
    Giovanni Domenico Cassini (1625-1712, picture: Paris observatory) Near Nice in the town Perinaldo Giovanni Domenico Cassini was born at the 8th of Juni 1625. Until 1650 he studied in Genua and Bologna and became (in the year of the death of Christoph Scheiner ) professor for astronomy and mathematics at the university of Bologna. He let built an observatory on the tower of the church St. Petronio and was mainly interested in the observation of comets. Mars according to G.D. Cassini 1663 he was ordered to fortify the citadel of the Italian town and archbishopric of Urbino. But while doing this he also continued to do astronomy, so he calculated the deformation of Jupiter and its rotation time. He watched the phases of Venus, discovered by Galileo Galilei (1564-1642), and also refined the visible surface marks of Mars. So besides of the Great Syrte discovered by Christiaan Huygens he discovered the polar caps of the red planet. 1668 the "sun king" Louis XIV. called Cassini to Paris as an observer to the academy of sciences. Here latest he met personally the university professor Christiaan Huygens. Cassini - now Jean-Dominique Cassini - became director of the Paris observatory, but this palace like building was not ready before 1672. Before the completion of the observatory some of the astronomical instruments, made by Giuseppe Campani arrived 1671 in Paris. These were up to 40 meter long refractor telescopes. Just in the presence of Huygens, the discover of Titan in 1655, Cassini saw another moon of Saturn: Japetus. The moon consists mainly of ice and has the special feature at the surface that nearly one half is very dark. Because of this the moon has a magnitude of around 10 at western elongation, while at eastern elongation it is about 2 magnitudes dimmer. This fact Cassini discovered at continuing observations of "his" moon. The dark area on Japetus, possibly originating by dark dust, is called after his discoverer Cassini region.

    19. IMSS - Multimedia Catalogue - Biography Gian Domenico CASSINI
    Last modified prior to September, 2000 by the Windows Team The source of this material is Windows to the Universe, at http//www.windows.ucar.edu/ at the University Corporation for Atmospheric Research (UCAR).
    http://galileo.imss.firenze.it/museo/b/ecassin.html
    Gian Domenico CASSINI
    Nice 1625 - Paris 1712 Cassini dedicated himself to the study of astronomy, and in 1650 he was appointed to the chair of the University of Bologna, succeeding Cavalieri . His observations of the Sun during this period led him to make the important discoveries, for which he achieved great fame. After a period in Rome, in 1668 he published a work on the ephemerides of the satellites of Jupiter Huygens . After a brief stay in Bologna, Cassini returned to France (having become a French citizen) and it was there that he died, by now blind, in 1712. He was a friend of some of the most important scientists of his day, namely Halley and Coronelli. Next Previous Index Home Page Catalogue ... Italiano

    20. Mathematicians In Richard S. Westfall's Archive
    Carcavi, Pierre de; Cardano, Girolamo; cassini, giovanni; Cataldi,Pietro; Cavalieri, Bonaventura; Ceva, giovanni; Ceva, Tommaso; Clarke
    http://www-gap.dcs.st-and.ac.uk/~history/External/Westfall_list.html
    Mathematicians in Richard S. Westfall's archive
    Richard Westfall's archive contains concise biographical details of more than 640 members of the Scientific Community of the 16th and 17th Centuries. The mathematicians who have biographies in our archive are listed below.
    You can search the whole archive in several ways or can click on a name below.
  • Angeli, Stephano
  • Arbuthnot, John
  • Arnauld, Antoine
  • Bachet, Claude ... Search Suggestions
    JOC/EFR January 2000 The URL of this page is:
    School of Mathematics and Statistics

    University of St Andrews, Scotland
    http://www-history.mcs.st-andrews.ac.uk/history/External/Westfall_list.html
  • A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z  

    Page 1     1-20 of 92    1  | 2  | 3  | 4  | 5  | Next 20

    free hit counter