41. PSIgate - Physical Sciences Information Gateway Search/Browse Results giusto bellavitis Born 22 Nov 1803 in Bassano, Vicenza, Italy Died 6 Nov 1880in Tezze (near Bassano) Italy Click the picture above to see a larger http://www.psigate.ac.uk/roads/cgi-bin/search_webcatalogue2.pl?limit=850&term1=b

42. Full Alphabetical Index Translate this page bellavitis, giusto (93) Beltrami, Eugenio (158*) ben Ezra, Abraham (552) benGerson, Levi (268) ben Tibbon, Jacob (198) Bendixson, Ivar Otto (85*) http://www.maththinking.com/boat/mathematicians.html

Full Alphabetical Index Click below to go to one of the separate alphabetical indexes A B C D ... XYZ The number of words in the biography is given in brackets. A * indicates that there is a portrait. A Abbe , Ernst (602*) Abel , Niels Henrik (2899*) Abraham bar Hiyya (641) Abraham, Max Abu Kamil Shuja (1012) Abu Jafar Abu'l-Wafa al-Buzjani (1115) Ackermann , Wilhelm (205) Adams, John Couch Adams, J Frank Adelard of Bath (1008) Adler , August (114) Adrain , Robert (79*) Adrianus , Romanus (419) Aepinus , Franz (124) Agnesi , Maria (2018*) Ahlfors , Lars (725*) Ahmed ibn Yusuf (660) Ahmes Aida Yasuaki (696) Aiken , Howard (665*) Airy , George (313*) Aitken , Alec (825*) Ajima , Naonobu (144) Akhiezer , Naum Il'ich (248*) al-Baghdadi , Abu (947) al-Banna , al-Marrakushi (861) al-Battani , Abu Allah (1333*) al-Biruni , Abu Arrayhan (3002*) al-Farisi , Kamal (1102) al-Haitam , Abu Ali (2490*) al-Hasib Abu Kamil (1012) al-Haytham , Abu Ali (2490*) al-Jawhari , al-Abbas (627) al-Jayyani , Abu (892) al-Karaji , Abu (1789) al-Karkhi al-Kashi , Ghiyath (1725*) al-Khazin , Abu (1148) al-Khalili , Shams (677) al-Khayyami , Omar (2140*) al-Khwarizmi , Abu (2847*) al-Khujandi , Abu (713) al-Kindi , Abu (1151) al-Kuhi , Abu (1146) al-Maghribi , Muhyi (602) al-Mahani , Abu (507) al-Marrakushi , ibn al-Banna (861) al-Nasawi , Abu (681) al-Nayrizi , Abu'l (621) al-Qalasadi , Abu'l (1247) al-Quhi , Abu (1146) al-Samarqandi , Shams (202) al-Samawal , Ibn (1569) al-Sijzi , Abu (708) al-Tusi , Nasir (1912) al-Tusi , Sharaf (1138) al-Umawi , Abu (1014) al-Uqlidisi , Abu'l (1028) Albanese , Giacomo (282) Albategnius (al-Battani) (1333*)

43. Giusto Bellavitis Université Montpellier II Translate this page giusto bellavitis (1803-1880). Cette image et la biographie complète en anglaisrésident sur le site de l’université de St Andrews Écosse http://ens.math.univ-montp2.fr/SPIP/article.php3?id_article=804

44. Padova's Mathematical History giusto bellavitis (18031880) made a significant contribution to the progress oflinear algebra, and was also Magnifico Rettore of the University, http://www.math.unipd.it/~frank/history.html

Late Medieval Science at Padova De Proportionibus Motuum , an incisive reworking of the new kinematics and dynamics originating in Merton College, Oxford. The university library was outstanding for its era and boasted many important new scientific texts. As M. Clagget observes There can be no doubt that Padua was the principal center [in Italy] for the study of English and French natural philosophy Yet even then all did not go well for the professors: in 1411 Biagi Pelacani, one of the exponents of this Padova school of natural philosophy, was fired because the students had deserted his classes, apparently as a consequence of his attempts to extract higher fees from them. The Sixteenth and Seventeenth Centuries The Eighteenth Century In the Eighteenth Century Padova, like many other European Universities had a Bernoulli on its mathematical faculty, in this case Nicholas Bernoulli (1687-1759) (of the second generation of Bernoulli's). Moreover it offered hospitality to a number of other distinguished mathematicians including James Stirling (1692-1770). Iacopo Riccati(1676-1754) was a student of Angeli and Bernoulli. The Nineteenth Century Giusto Bellavitis (1803-1880) made a significant contribution to the progress of linear algebra, and was also Magnifico Rettore of the University, a career all the more impressive in view of the fact that he began as a city clerk in nearby Bassano, and received his "laurea"

45. DML: Digital Mathematics Library: Retrodigitized Mathematics Journals And Monogr 49, Cornell bellavitis, giusto Exposition de la méthode des equipollences,traduit de l italien, par OA Laisant, 183, 1874, book http://www.mathematik.uni-bielefeld.de/~rehmann/DML/dml_links_author_B.html

DML: Digital Mathematics Library Also: WDML: World Digital Mathematics Library Retrodigitized Mathematics Journals and Monographs Contains links to 1874 digitized books (> 385236 pages ) and to 145 digitized journals (> 2942143 pages). (Numbers of pages are preliminary; not all informations are already available.) Includes all the links mentioned on page 920 of: Allyn Jackson, "The Digital Mathematics Libary", Notices Amer. Math. Soc., vol. 50 (8), 2003 Local Copy A similar list is offered at http://www.wdml.org The database for this table is an ASCII based (ISO Latin 8859-1 extended) list , which may be parsed by this PERL script If you want items to be added here, please send me the necessary data. Lists ordered by "Journal", "Repository" (Journals only) or by "Author name", "Title" are provided, as well as an overview of the repositories Author: A B C D ... Z Title: A B C D ... Z Nr. Repository: Author, Title (Books only): Pages: Year(s): Type: Cornell Bachelier, Louis Jean Baptist : Calcul des probabilités, Tome I book GDZ Bachmann, Fridericus

46. DML: Digital Mathematics Library: Retrodigitized Mathematics Journals And Monogr par OA Laisant (by bellavitis, giusto), 183, 1874, book http://www.mathematik.uni-bielefeld.de/~rehmann/DML/dml_links_title_E.html

DML: Digital Mathematics Library Also: WDML: World Digital Mathematics Library Retrodigitized Mathematics Journals and Monographs Contains links to 1874 digitized books (> 385236 pages ) and to 145 digitized journals (> 2942143 pages). (Numbers of pages are preliminary; not all informations are already available.) Includes all the links mentioned on page 920 of: Allyn Jackson, "The Digital Mathematics Libary", Notices Amer. Math. Soc., vol. 50 (8), 2003 Local Copy A similar list is offered at http://www.wdml.org The database for this table is an ASCII based (ISO Latin 8859-1 extended) list , which may be parsed by this PERL script If you want items to be added here, please send me the necessary data. Lists ordered by "Journal", "Repository" (Journals only) or by "Author name", "Title" are provided, as well as an overview of the repositories Author: A B C D ... Z Title: A B C D ... Z Nr. Repository: Title, Author: Pages: Year(s): Type: smarandache E-Books of Mathematics book GDZ Ebene Flugbahnen starrer Körper (by Heinicke, Hilde) book Michigan Ebene Geometrie der Lage, von Dr. Rudolf Böger. Mit 142 Figuren.

47. Earliest Known Uses Of Some Of The Words Of Mathematics (R) Drobisch (18021896) and in 1846 by giusto bellavitis (1803-1880). bellavitisused teorema del Rolle in 1846 in the Memorie dell IR Istituto Veneto di http://members.aol.com/jeff570/r.html

Earliest Known Uses of Some of the Words of Mathematics (R) Last revision: Aug. 13, 2005 RADIAN. According to Cajori (1919, page 484): An isolated matter of interest is the origin of the term 'radian', used with trigonometric functions. It first appeared in print on June 5, 1873, in examination questions set by James Thomson at Queen's College, Belfast. James Thomson was a brother of Lord Kelvin. He used the term as early as 1871, while in 1869 Thomas Muir, then of St. Andrew's University, hesitated between 'rad', 'radial' and 'radian'. In 1874, T. Muir adopted 'radian' after a consultation with James Thomson. In a footnote, Cajori gives a reference to Nature, In a letter appearing in the April 7, 1910, Nature, Thomas Muir wrote: "I wrote to him [i.e., to Alexander J. Ellis, in 1874], and he agreed at once for the form 'radian,' on the ground that it could be viewed as a contraction for 'radial angle'..." In a letter appearing in the June 16, 1910, Nature, James Thomson wrote: "I shall be very pleased to send Dr. Muir a copy of my father's examination questions of June, 1873, containing the word 'radian.' ...It thus appears that 'radian' was thought of independently by Dr. Muir and my father, and, what is really more important than the exact form of the name, they both independently thought of the necessity of giving a name to the unit-angle" [Dave Cohen]. A post on the Internet indicated that Thomas Muir (1844-1934) claimed to have coined the term in 1869, and that Muir and Ellis proposed the term as a contraction of "radial angle" in 1874. A reference given was: Michael Cooper, "Who named the radian?"

48. Table Of Contents giusto bellavitis and His Calculus of Equipollences. IV. Hermann Grassmann andHis Calculus of Extension Introduction. V. Grassmann s Theorie der Ebbe und http://web.doverpublications.com/cgi-bin/toc.pl/0486679101

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 A History of Vector Analysis: The Evolution of the Idea of a Vectorial System by Michael J. Crowe ISBN: 0486679101 Dover Publications Price: $12.95 click here to see this book Table of Contents for A History of Vector Analysis: The Evolution of the Idea of a Vectorial System Chapter One THE EARLIEST TRADITIONS I.

49. Lebensdaten Von Mathematikern Translate this page bellavitis, giusto (1803 - 1880) Beltrami, Eugenio (1835 - 1899) Bendixson, IvarOtto (1861 - 1936) Benedetti, Giovanni (1530 - 1590) http://www.mathe.tu-freiberg.de/~hebisch/cafe/lebensdaten.html

Diese Seite ist dem Andenken meines Vaters Otto Hebisch (1917 - 1998) gewidmet. By our fathers and their fathers in some old and distant town from places no one here remembers come the things we've handed down. Marc Cohn Dies ist eine Sammlung, die aus verschiedenen Quellen stammt, u. a. aus Jean Dieudonne, Geschichte der Mathematik, 1700 - 1900, VEB Deutscher Verlag der Wissenschaften, Berlin 1985. Helmut Gericke, Mathematik in Antike und Orient - Mathematik im Abendland, Fourier Verlag, Wiesbaden 1992. Otto Toeplitz, Die Entwicklung der Infinitesimalrechnung, Springer, Berlin 1949. MacTutor History of Mathematics archive A B C ... Z Abbe, Ernst (1840 - 1909) Abel, Niels Henrik (5.8.1802 - 6.4.1829) Abraham bar Hiyya (1070 - 1130) Abraham, Max (1875 - 1922) Abu Kamil, Shuja (um 850 - um 930) Abu'l-Wafa al'Buzjani (940 - 998) Ackermann, Wilhelm (1896 - 1962) Adams, John Couch (5.6.1819 - 21.1.1892) Adams, John Frank (5.11.1930 - 7.1.1989) Adelard von Bath (1075 - 1160) Adler, August (1863 - 1923) Adrain, Robert (1775 - 1843)

50. Famous Mathematicians With AB giusto bellavitis Eugenio Beltrami Abraham ben Ezra Levi ben Gerson Jacob benTibbon Ivar Otto Bendixson Giovanni Benedetti Stefan Bergman George Berkeley http://www.famousmathematician.com/az/mathematician_B.htm

Mathematicians - B Charles Babbage Claude Bachet Paul Bachmann John Backus Roger Bacon Reinhold Baer Abu al-Baghdadi Rene-Louis Baire Alan Baker Henry Baker Johann Balmer Stefan Banach Benjamin Banneker Ahmad Banu Musa Jafar Banu Musa Abraham bar Hiyya Joseph Emile Barbier Nina Bari Peter Barlow Ernest Barnes Franciscus Barocius Isaac Barrow Francesco Barozzi Erasmus Bartholin George Batchelor Harry Bateman Guiseppe Battaglini Baudhayana Abu al-Battani Agnes Baxter Thomas Bayes Jean Beaugrand Ulugh Beg Eric Temple Bell John Bell Giusto Bellavitis Eugenio Beltrami Abraham ben Ezra Levi ben Gerson Jacob ben Tibbon Ivar Otto Bendixson Giovanni Benedetti Stefan Bergman George Berkeley Paul Isaac Bernays Daniel Bernoulli Jacob Bernoulli Johann Bernoulli Nicolaus Bernoulli Felix Bernstein Sergi Bernstein Lipa Bers Eugenio Bertini Alexis des Bertins Joseph Bertrand Lugwig Berwald William Berwick

51. New Dictionary Of Scientific Biography Translate this page bellavitis, giusto Beltrami, Eugenio Benedetti, Giovanni Battista Bergman, StefanBernays, Paul Isaac Bernoulli, Daniel Bernoulli, Jakob I http://www.indiana.edu/~newdsb/math.html

Make Suggestions Mathematics Abel, Niels Henrik Abraham Bar ?iyya Ha-Nasi Abu Kamil Shuja? Ibn Aslam Ibn Mu?ammad Ibn Shuja? Abu'l-Wafa? al-Buzjani, Mu?ammad Ibn Mu?ammad Ibn Ya?ya Ibn Isma?il Ibn al- ?Abbas Adams, John Couch Adelard of Bath Adrain, Robert Aepinus, Franz Ulrich Theodosius Agnesi, Maria Gaetana Aguilon, François d' A?mad Ibn Yusuf Aida Yasuaki Ajima Naonobu Akhiezer, Naum Il'ich Albert, Abraham Adrian Albert of Saxony Alberti, Leone Battista Aleksandrov, Pavel Sergeevich Alembert, Jean Le Rond d' Alzate y Ramírez, José Antonio Ampère, André-Marie Amsler, Jakob Anatolius of Alexandria Anderson, Oskar Johann Viktor Andoyer, Henri Angeli, Stefano Degli Anthemius of Tralles Antiphon Apollonius of Perga Appell, Paul Arbogast, Louis François Antoine Arbuthnot, John Archimedes Archytas of Tarentum Argand, Jean Robert Aristaeus Aristarchus of Samos Arnauld, Antoine Aronhold, Siegfried Heinrich Artin, Emil Atwood, George Autolycus of Pitane Auzout, Adrien

52. List Of Scientists By Field Translate this page bellavitis, giusto. Belleval, Pierre Richer de. Bellini, Lorenzo. Bellini, Lorenzo.Bellinsgauzen, Faddei F. Bellinsgauzen, Faddei F. http://www.indiana.edu/~newdsb/b.html

Baade, Wilhelm Heinrich Walter Babbage, Charles Babbage, Charles Babcock, Ernest Brown Babcock, Stephen Moulton Babcock, Stephen Moulton Babinet, Jacques Babinet, Jacques Babington, Charles Cardale Babington, William Baccelli, Guido Bach, Aleksei Nikolaevich Bach, Aleksei Nikolaevich Bache, Alexander Dallas Bachelard, Gaston Bachelier, Louis Bachmann, Augustus Quirinus Bachmann, Paul Gustav Heinrich Back, Ernst E. A. Bacon, Francis Bacon, Roger Bacon, Roger Bacon, Roger Badger, Richard McLean Badger, Richard McLean Baekeland, Leo Hendrik Baer, Karl Ernst von Baer, Karl Ernst von Baer, Karl Ernst von Baeyer, Adolf Johann Friedrich Wilhelm von Baglivi, Georgius Baier, Johann Jacob Baier, Johann Jacob Baier, Johann Jacob Bailey, Edward Battersby Bailey, Liberty Hyde Bailey, Loring Woart Bailey, Solon Irving Baillie, Matthew Baillou, Guillaume de Bailly, Jean-Sylvain Baily, Francis Baily, Francis Bain, Alexander Bain, Alexander Baird, Spencer Fullerton Baird, Spencer Fullerton Baker, Henry Baker, John Gilbert Bakewell, Robert Balandin, Aleksey Aleksandrovich Balbus Balbus Baldi, Bernardino

53. Soci Dalla Fondazione Dell'Accademia Galileiana Di Scienze Lettere Ed Arti Di Pa Translate this page giusto bellavitis 1875/1877. Giuseppe De Leva 1877/1879. Achille De Zigno 1879/1881.Tito Vanzetti 18.12.1881. Giuseppe Orsolato 1882/1884 http://www.unipd-org.it/accademiagalileiana/traduzione sito ultima versione/soci

Accademia Galileiana di Scienze Lettere ed Arti in Padova Ente di Alta Cultura I soci dell'Accademia dalla sua fondazione (1599) Elenco cronologico dei soci dell'Accademia I fondatori dell'Accademia dei Ricovrati La serie dei Principi I presidenti dell'Accademia di Scienze Lettere ed Arti 1779 Accademia Patavina di Scienze Lettere ed Arti Accademia Galileiana di Scienze Lettere ed Arti Enti sostenitori dell'Accademia Elenco cronologico dei Soci dell'Accademia ACCADEMIA DEI RICOVRATI F O N D A T O RI Ab. Federico Cornaro Dr. Sforza Oddo (o Degli Oddi) Francesco Pigna Dr. cav. Bartolommeo Selvatico Dr. cav. Angelo Mattiaccio Dr. cav. Ottonello Descalzo Dr. Cesare Cremonino Gio. Francesco Mussato Dr. Ioachin Scaino Canon. Dr. Giovanni Belloni Dr. don Antonio Zonca Dr. Marcantonio Otellio Dr. Ottavio Livello Dr. Camillo Belloni Dr. Galileo Galilei Comm. Lorenzo Giustiniani Ab. Marc'Antonio Cornaro Pietro Valier Dr. Orazio Gradignano Malatesta Baglioni Tomaso Marcello Dr. Marino Marini Dr. Alessandro Campiglia Ubertino Papafava Martino Sandelli (Giornale A, carta 2

54. La Matematica Italiana 1800-1950 Translate this page giusto bellavitis nacque nel 1803 a Bassano in provincia di Vicenza, studiò inpratica da autodidatta e fu impiegato comunale a Bassano fino al 1843, http://www2.math.unifi.it/~archimede/matematicaitaliana/schede_opere/23bellaviti

GIUSTO BELLAVITIS (1803-1880) Sposizione del metodo delle equipollenze Bibliografia: E. N. Legnazzi, Commemorazione del conte Giusto Bellavitis, Padova, Prosperini, 1881; E. N. Legnazzi, Aggiunte illustrative alla commemorazione del Professore Conte Giusto Bellavitis, idem; P. Freguglia, Dalle equipollenze ai sistemi lineari. Il contributo italiano al calcolo geometrico, Urbino, Quattroventi, 1992. Paolo Freguglia scheda successiva scheda precedente indice schede

55. Liste Alphabétique Des Mathématiciens Translate this page bellavitis (giusto), Italien (1803-1880). Beltrami (Eugenio), Italien (1835-1900).Bernays (Paul), Suisse (1888-1977). Bernoulli (Daniel), Suisse (1700-1782 http://www.cegep-st-laurent.qc.ca/depar/maths/noms.htm

Abel (Niels Henrik) Agnesi (Maria Guetana) Italienne (1718-1799) Alembert (Jean Le Rond d') Alexander (James Waddell) Alexandroff (Pavel Sergeevich) Russe (1896-1982) Apian (Peter Benneuwitz, dit) Allemand (1495-1552) Apollonios de Perga Grec(v.~262-v.~180) Appel (Paul) Grec (~287-~212) Aristote Grec (~384-~322) Arzela (Cesare) Italien (1847-1912) Ascoli (Guilio) Italien (1843-1896) Babbage (Charles) Anglais (1792-1871) Banach (Stefan) Polonais (1892-1945) Argand (Jean Robert) Suisse (1768-1822) Barrow (Isaac) Anglais (1630-1677) Bayes (Thomas) Anglais (1702-1761) Bellavitis (Giusto) Italien (1803-1880) Beltrami (Eugenio) Italien (1835-1900) Bernays (Paul) Suisse (1888-1977) Bernoulli (Daniel) Suisse (1700-1782) Bernoulli (Jacques) Suisse (1654-1705) Bernoulli (Jean) Suisse (1667-1748) Allemand (1878-1956) Bernstein (Sergei Natanovich) Russe (1880-1968) Bertrand (Josepn) Bessel (Friedrich) Allemand (1784-1846) Birkoff (George David) Bliss (Gilbert Ames) Bochner (Salomon) Allemand (1899-1982) Bolyai (Janos) Hongrois (1802-1860) Bolzano (Bernhard) Bombelli (Raffaele) Italien (1522-1572) Bonnet (Ossian) Boole (George) Anglais (1815-1864) Bourbaki (Nicolas) Braikenridge (William) Anglais (v.1700-1762)

56. DIMA - Ricerca M. Modenesi, Alcuni manoscritti relativi all’insegnamento del calcolo delleprobabilità presenti nelle carte di giusto bellavitis (18031880), pp17 http://www.dima.unige.it/ricerca/pubbldima.html

Dipartimento di Matematica Pubblicazioni Relative agli anni: ANNO 1996 Numero Data Tipo Autori Titolo, pagine, note PREPRINT M. Grandis Categorically algebraic foundations for homotopical algebra (195) PREPRINT M. Grandis On the homotopy structure of strongly homotopy associative differential algebras (195) PREPRINT M. Beltrametti - A.J. Sommese On the second adjunction mapping. The case of a 1-dimensional image (160) PREPRINT M. Beltrametti - A.J. Sommese Notes on embeddings of blowups (160) PUBBLICAZIONE A.M. Bigatti Computation of Hilbert-Poincare Series (195) PREPRINT A. Khrennikov Non-Kolmogorovean probabilistic models (195) PREPRINT M. Margiocco, F. Patrone, L. Pusillo A new approach to Tikhonov well-posedness for Nash equilibria (195) PUBBLICAZIONE P. Oppezzi , A.M. Rossi Esistenza di soluzioni per problemi unilateri con dato di misura o in L1 (195) PREPRINT R. Van Der Putten A note on the local invertibility of Sobolev functions (195) PREPRINT A. Oneto, E. Zatini On the value set of modules (165) PREPRINT L. Burlando

57. À§´ëÇѼöÇÐÀÚ ¸ñ·Ï bellavitis, giusto bellavitisBorn 22 Nov 1803 in Bassano, Italy http://www.mathnet.or.kr/API/?MIval=people_seek_great&init=B

58. Search Results, MATHEMATICS-Foreign Language (eBooks, ETexts, On Translate this page bellavitis, giusto, Exposition de la methode des equipollences (tr. C.-A. Laisant),1874 Paris, Graphic, n/c, CornellU. Beltrami, Eugenio, 1835-1900 http://www.digitalbookindex.com/_search/search010mathforeighlanga.asp

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59. Indice Volume 8 giusto bellavitis, a socio corrispondente italiano Linceo {6 } http://www.lincei.it/archivi/rendiconti18xx/index_vol08.htm

Il prof. Volpicelli socio ordinario e segretario - Soluzione algebrica delle x +y =z x +y =z Il prof. Volpicelli - Soluzione in interi della x -y

60. Pillole Gnomoniche Translate this page giusto bellavitis). L’avvento del telegrafo, delle ferrovie e di tutti gli altrisistemi di comunicazione che seguirono, e il progresso nella realizzazione http://www.nicolaseverino.it/pillole_gnomoniche.htm

Pillole Gnomoniche Home La gnomonica in 1000 parole (scritto circa nel 1994) All’alba di uno sviluppo irrefrenabile delle comunicazioni telematiche (mentre scriviamo sono oltre centomila gli italiani che “navigano” nel ciberspazio) sembrerebbe quantomeno anacronistico parlare di strumenti, quali gli orologi solari che, per i modesti scopi cui erano destinati, appartengono a quelle generazioni di uomini non ancora afflitti dal vortice del frenetico ritmo di vita cui siamo abituati. Non siamo fuori dai tempi. Anzi, grazie ad essi siamo nel tempo. Quanto questo sia vero lo si può facilmente dimostrare con poche semplici considerazioni. Innanzitutto, anche ad un superficiale esame dello sviluppo cronologico della materia, si rende evidente che la gnomonica , lo studio in generale degli orologi solari, ha conosciuto diverse fasi ascendenti e discendenti sia in ordine di popolarità che di importanza scientifica. Stando alle poche tracce, sempre di seconda o terza mano, che ci sono pervenute dall’antichità, possiamo dire che a cominciare dal primo filosofo della storia greca, cioè Anassimandro, la gnomonica conobbe un primo periodo di fioritura attorno al III secolo a.C., soprattutto in seguito agli importanti studi matematici condotti da Apollonio, Democrito, Pitagora ed altri. Ma ancora più noti sono i miglioramenti costruttivi che Beroso apportò ai vecchi orologi a forma di emisfero. La necessità di misurare sempre in modo più preciso il fluire del tempo costituiva lo sprono più alto ed immediato al perseguimento di nuove tecniche teoriche e artigianali per la costruzione degli strumenti astronomici, ed in particolare degli orologi solari e ad acqua, indubbiamente la prima categoria di strumenti oggetto degli studi degli scienziati.

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