| Roger Joseph Boscovich | |
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 Portrait by Robert Edge Pine, London, 1760.
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| Born | 18 May 1711 Dubrovnik, Republic of Ragusa |
| Died | 13 February 1787 (aged 75) Milan, Duchy of Milan |
| Residence | Milan |
| Fields | Physics, Astronomy, Mathematics, Natural philosophy |
| Institutions | Brera Observatory, University of Pavia |
| Alma mater | Pontifical Gregorian University |
| Known for | precursor of the Atomic theory, founder of Brera Observatory |
Ruđer Bošković (see names in other languages; 18 May 1711 – 13 February 1787) was a physicist, astronomer, mathematician, philosopher, diplomat, poet, Jesuit, and according to some a polymath[1] from Ragusa (today Dubrovnik, in Croatia), who lived for a time in France, England and some Italian states [2].
He is famous for his atomic theory and made many important contributions to astronomy, including the first geometric procedure for determining the equator of a rotating planet from three observations of a surface feature and for computing the orbit of a planet from three observations of its position. In 1753 he also discovered the absence of atmosphere on the Moon.[3]
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Boscovich was born in Republic of Ragusa (Dubrovnik). He was baptized on 26 May 1711 by Marinus Carolis, curatus et sacristia; the name may have been given to him because both his great-grandfather Agostini Bettera and his mother`s brother were called Ruggiero, the godparent was his uncle Ruggiero Bettera. He was the seventh child of Nikola Bošković, a merchant born in 1642, at Orahov Do near Trebinje in what was then the Ottoman Empire and is now Bosnia and Herzegovina [4]. He knew his father only as a bedridden invalid with paralysed legs and who died when Roger was a child of 10, was rich in trading experience and knowledge of that part of the Ottoman Empire.
Boscovich's mother, Paola Bettera (1674–1777) was a member of a cultivated Italian merchant family established in Ragusa since the early seventeenth century, to where her ancestor, Pietro Bettera, had come from Bergamo in northern Italy. She was a robust and active woman with a happy temperament who lived to 103. She left nothing in writing, but Bošković's aunt, her sister, wrote poetry in Italian. Their sons, Roger’s cousins and playmates, Antun Bošković and Franjo Bošković, grew up into good Latinists. His own brothers and sisters were all older than himself, except his sister Anica Bošković (1714–1804), two years his junior. His eldest sister Mare Bošković, nineteen years his senior, was the only member of the family to marry; his second sister Marija Bošković became a nun in the Ragusa Convent of St Catherine’s. His eldest brother Božo Bošković (Boško), thirteen years older, joined the service of the Ragusa Republic. His brother Bartolomeo Bošković (Baro), born in 1700 and educated at the Jesuit school in Dubrovnik, left home when Roger was 3 to become a scholar and a Jesuit priest in Rome. He too wrote good verse in both Latin and ‘Illyrian’, but eventually burnt some of his manuscripts out of a scrupulous modesty. His brother Ivan Bošković became a Dominican in a sixteenth-century monastery in Ragusa, whose church Roger knew as a child with its rich treasures and paintings by Titian and Vasari, still there today. His brother Pero Bošković, six years his senior, became a poet like his grandfather. He, too, was schooled by the Jesuits, then served as an official of the Republic and made his reputation as a translator of Ovid, Corneille’s Cid and of Molière. A volume of his religious verse, Hvale Duhovne, was published in Venice in 1729.
At the age of 8 or 9, after acquiring the rudiments of reading and writing from the priest Nicola Nicchei of the Church of St. Nicholas, Roger was sent for schooling to the local Jesuit Collegium Regusinum. During his early studies Roger Boscovich showed a distinct propensity for further intellectual development. He gained a reputation at school for having an easy memory and a quick, deep mind.
On 16 September 1725, Roger Boscovich left Ragusa for Rome. He was in the care of two Jesuit priests who took him to the Society of Jesus, famous for its education of youth and at that time having some 800 establishments and 200,000 pupils under its care throughout the world. We learn nothing from Boscovich himself until the time he entered the novitiate in 1731, but it was the usual practice for novices to spend the first two years not in the Collegium Romanum, but in Sant'Andrea delle Fratte. There, he studied mathematics and physics; and so brilliant was his progress in these sciences that in 1740 he was appointed professor of mathematics in the college.[5]
He was especially appropriate for this post due to his acquaintance with recent advances in science, and his skill in a classical severity of demonstration, acquired by a thorough study of the works of the Greek geometers. Several years before this appointment he had made a name for himself with an elegant solution of the problem of finding the Sun's equator and determining the period of its rotation by observation of the spots on its surface.
Notwithstanding the arduous duties of his professorship, he found time for investigation in all the fields of physical science, and he published a very large number of dissertations, some of them of considerable length. Among the subjects were the transit of Mercury, the Aurora Borealis (corona), the figure of the Earth, the observation of the fixed stars, the inequalities in terrestrial gravitation, the application of mathematics to the theory of the telescope, the limits of certainty in astronomical observations, the solid of greatest attraction, the cycloid, the logistic curve, the theory of comets, the tides, the law of continuity, the double refraction micrometer, and various problems of spherical trigonometry.
In 1742 he was consulted, with other men of science, by Pope Benedict XIV, as to the best means of securing the stability of the dome of St. Peter's, Rome, in which a crack had been discovered. His suggestion of placing five concentric iron bands was adopted.
In 1745 Boscovich published De Viribus Vivis in which he tried to find a middle way between Isaac Newton's gravitational theory and Gottfried Leibniz's metaphysical theory of monad-points. He developed a concept of "impenetrability" as a property of hard bodies which explained their behaviour in terms of force rather than matter. Stripping atoms of their matter, impenetrability is disassociated from hardness and then put in an arbitrary relationship to elasticity. Impenetrability has a Cartesian sense that more than one point cannot occupy the same location at once.[6]
Boscovich visited his hometown only once in 1747. After that, he never went to visit the place where he was born and grew up.
He agreed to take part in the Portuguese expedition for the survey Brazil and the measurement of a degree of the meridian, but was persuaded by the Pope to stay in Italy and to undertake a similar task there with Christopher Maire, an English Jesuit who measured an arc of two degrees between Rome and Rimini. The operation began at the end of 1750, and was completed in about two years. An account was published in 1755, under the name De Litteraria expeditione per pontificiam ditionem ad dimetiendos duos meridiani gradus a PP. Maire et Boscovicli. The value of this work was increased by a carefully prepared map of the States of the Church. A French translation appeared in 1770 which incorporated, as an appendix, some material first published in 1760 outlining an objective procedure for determining suitable values for the parameters of the fitted model from a greater number of observations. An unconstrained variant of this fitting procedure is now known as the L1-norm or Least absolute deviations procedure and serves as a robust alternative to the familiar L2-norm or Least Squares procedure.
A dispute arose between Francis the Grand Duke of Tuscany and the republic of Lucca with respect to the drainage of a lake. As agent of Lucca, Boscovich was sent, in 1757, to Vienna and succeeded in bringing about a satisfactory arrangement in the matter.
In Venice in 1758, he published the first edition of his famous work, Theoria philosophiae naturalis redacta ad unicam legem virium in natura existentium (Theory of Natural philosophy derived to the single Law of forces which exist in Nature), containing his atomic theory and his theory of forces [7]. A second edition was published in 1763 in Venice, a third in 1922 in London, and a fourth in 1966 in the United States. A fifth edition was published in Zagreb in 1974.
Another occasion to exercise his diplomatic ability soon arose. The British government suspected that warships had been outfitted in the port of Ragusa for the service of France and that therefore the neutrality of the Republic of Ragusa had been violated. Boscovich was selected to undertake an ambassadorship to London (1760), to vindicate the character of his native place and satisfy the government. This mission he discharged successfully — a credit to him and a delight to his countrymen. During his stay in England he was elected a fellow of the Royal Society.
In 1761 astronomers were preparing to observe the transit of Venus across the Sun. Under the influence of the Royal Society Boscovich decided to travel to Istanbul. He arrived late and then traveled to Poland via Bulgaria and Moldavia then proceeding to Saint Petersburg where he was elected as a member of Russian Academy of Sciences. Ill health compelled him soon to return to Italy.
In 1764 he was called to serve as the chair of mathematics at the university of Pavia, and he held this post with the directorship of the observatory of Brera in Milan, for six years.
He was invited by the Royal Society of London to undertake an expedition to California to observe the transit of Venus in 1769 again, but this was prevented by the recent decree of the Spanish government expelling Jesuits from its dominions. Boscovich had many enemies and he was driven to frequent changes of residence. About 1777 he returned to Milan, where he kept teaching and directing the Brera observatory.
Deprived of his post by the intrigues of his associates, he was about to retire to Ragusa when in 1773 the news of the suppression of his order in Italy reached him. Uncertainty led him to accept an invitation from the King of France to come to Paris where he was appointed director of optics for the navy, with a pension of 8000 livres and a position was created for him.
He naturalized in France and stayed ten years, but his position became irksome, and at length intolerable. He, however, continued to work in the pursuit of science knowledge, and published many remarkable works. Among them was an elegant solution of the problem to determine the orbit of a comet from three observations and works on micrometer and achromatic telescopes.
In 1783 he returned to Italy, and spent two years at Bassano, occupying himself with the publication of his Opera pertinentia ad opticam et astronomiam, etc., published in 1785 in five volumes quarto.
After a visit of some months to the convent of Vallombrosa, he went to Brera in 1786 and resumed his work. At that time his health was failing, his reputation was on the wane, his works did not sell, and he gradually fell prey to illness and disappointment. He died in Milan and was buried in the church of St. Maria Podone.
In addition to the works already mentioned Boscovich published Elementa universae matheseos (1754), the substance of the course of study prepared for his pupils, and a narrative of his travels entitled Giornale di un viaggio da Costantinopoli in Polonia (A diary of the journey from Constantinople to Poland) (1762), of which several editions and a French translation appeared.
His atomic theory, given as a clear, precisely-formulated system utilizing principles of Newtonian mechanics inspired Michael Faraday to develop field theory for electromagnetic interaction. Other nineteenth century physicists, such as William Rowan Hamilton, Lord Kelvin, and the elasticity theorist Saint Vernant stressed the theoretical advantages of the Boscovichian atom over rigid atoms[8][9]. Some even claim that Boscovichian atomism was a basis for Albert Einstein's attempts for a unified field theory[4] and that he was the first to envisage, seek, and propose a mathematical theory of all the forces of Nature; the first scientific theory of everything.[10]
The scientist Nikola Tesla, a critic of Einstein, claimed in an unpublished interview that Einstein's theory of Relativity was the creation of Boscovich:
| “ | ...the relativity theory, by the way, is much older than its present proponents. It was advanced over 200 years ago by my illustrious countryman Ruđer Bošković, the great philosopher, who, not withstanding other and multifold obligations, wrote a thousand volumes of excellent literature on a vast variety of subjects. Bošković dealt with relativity, including the so-called time-space continuum ...'.[11] | ” |
For his contributions to astronomy, the lunar crater Boscovich was named after him.
The largest multidisciplinary research center in Croatia was named the "Ruđer Bošković Institute" in his honour.
The modern concept of nationality, based on ethnic concepts as language, culture, religion, custom, etc., was developed only in the 19th century. For this reason the attribution of a definite "nationality" to personalities of the previous centuries, living in ethnically mixed regions, is often indeterminable; Boscovich's legacy is consequently celebrated by several states: Croatia, Italy, and Serbia.[5].
Croatian sources stress that he referred to his Croatian identity.[12] In writings to his sister Anica (Anna), he told her he had not forgotten the Croatian language.[12] When he was in Vienna in 1757, he spotted Croatian soldiers going to the battlefields of the Seven Year's War and immediately rode out to see them, wishing them 'Godspeed' in Croatian.[13] While living in Paris and attending to a military parade where he saw a Croatian unit from Ragusa, his words were: "there are, my brave Croats".[13] The largest Croatian institute of natural sciences and technology, based in Zagreb bears his name. His picture was on Croatian dinar banknotes valid from 1991 until 1994, when the dinar was replaced by the Croatian kuna.
Serbs claim that his family origins were in Montenegro [14] which would make him a Montenegrin. The Astronomical Society Ruđer Bošković based in the Serbia's capital Belgrade bears his name.
In Italy Boscovich is remembered as an Italian. He was born in a city of mixed language and culture (Italic and Croat), strongly influenced by the Italian Culture and where the upper classes had an Italic/Latin (Romanic Dalmatian) identity. His mother's family was from Italy, and he was also largely Italian both by culture and career; he moved to Italy at the age of 14 where he spent the greater part of his life. In several sources and encyclopedias he is described as an Italian scientist. He used Italian for his correspondence and private matters and Voltaire always wrote to Boscovich in Italian as "a sign of respect". Furthermore, Boscovich always said that Italy was "his real and sweet mother".[15] However Boscovich himself also denied being Italian: when it was suggested he was an Italian mathematician, he responded in a note to his Voyage astronomique et geographique that "our author is a Dalmatian from Ragusa, and not an Italian."[citation needed]
Boscovich published eight scientific dissertations prior to his 1744 ordination as a priest and appointment as a professor and another 14 afterwards. The following is a partial list of his publications:
Roger Joseph Boscovich (18 May 1711 – 13 February 1787) was a physicist, astronomer, mathematician, philosopher, diplomat, poet, and Jesuit.
ROGER JOSEPH BOSCOVICH (1711?-1787) mathematician and natural philosopher, one of the earliest of foreign savants to adopt Newton's gravitation theory, was born at Ragusa in Dalmatia on the 18th of May 1711, according to the usual account, but ten years earlier according to Lalande (Eloge, 1792). In his fifteenth year, after passing through the usual elementary studies, he entered the Society of Jesus. On completing his noviciate, which was spent at Rome, he studied mathematics and physics at the Collegium Romanum; and so brilliant was his progress in these sciences that in 1740 he was appointed professor of mathematics in the college. For this post he was especially fitted by his acquaintance with recent advances in science, and by his skill in a classical severity of demonstration, acquired by a thorough study of the works of the Greek geometricians. Several years before this appointment he had made himself a name by an elegant solution of the problem to find the sun's equator and determine the period of its rotation by observation of the spots on its surface. Notwithstanding the arduous duties of his professorship he found time for investigation in all the fields of physical science; and he published a very large number of dissertations, some of them of considerable length, on a wide variety of subjects. Among these subjects were the transit of Mercury, the Aurora Borealis, the figure of the earth, the observation of the fixed stars, the inequalities in terrestrial gravitation, the application of mathematics to the theory of the telescope, the limits of certainty in astronomical observations, the solid of greatest attraction, the cycloid, the logistic curve, the theory of comets, the tides, the law of continuity, the double refraction micrometer, various problems of spherical trigonometry, &c. In 1742 he was consulted, with other men of science, by the pope, Benedict XIV., as to the best means of securing the stability of the dome of St Peter's, Rome, in which a crack had been discovered. His suggestion was adopted. Shortly after he engaged to take part in the Portuguese expedition for the survey of Brazil, and the measurement of a degree of the meridian; but he yielded to the urgent request of the pope that he would remain in Italy and undertake a similar task there. Accordingly, in conjunction with Christopher Maire, an English Jesuit, he measured an arc of two degrees between Rome and Rimini. The operations were begun towards the close of 1750, and were completed in about two years. An account of them was published in 1755, entitled De Litteraria expeditione per pontificam ditionem ad dimetiendos duos meridiani gradus a PP. Maire et Boscovich. The value of this work was increased by a carefully prepared map of the States of the Church. A French translation appeared in 1770. A dispute having arisen between the grand duke of Tuscany and the republic of Lucca with respect to the drainage of a lake, Boscovich was sent, in 1757, as agent of Lucca to Vienna, and succeeded in bringing about a satisfactory arrangement of the matter. In the following year he published at Vienna his famous work, Theoria philosophiae naturalis redacta ad unicam legem virium in natura existentium, containing his atomic theory (see MOLECULE). Another occasion for the exercise of his diplomatic ability soon after presented itself. A suspicion having arisen on the part of the British government that ships of war had been fitted out in the port of Ragusa for the service of France, and that the neutrality of Ragusa had thus been violated, Boscovich was selected to undertake an embassy to London (1760),(1760), to vindicate the character of his native place and satisfy the government. This mission he discharged successfully, with credit to himself and satisfaction to his countrymen. During his stay in England he was elected a fellow of the Royal Society. He soon after paid this society the compliment of dedicating to it his Latin poem, entitled De Solis et Lunae Defectibus (London, 1764). This prolix composition, one of a class which at that time was much in vogue - metrical epitomes of the facts of science - contains in about five thousand lines, illustrated by voluminous notes, a compendium of astronomy. It was for the most part written on horseback, during the author's rides in the country while engaged in his meridian measurements. The book is characterized by G. B. J. Delambre as "uninstructive to an astronomer and unintelligible to any one else." On leaving England Boscovich travelled in Turkey, but illhealth compelled him soon to return to Italy. In 1764 he was called to the chair of mathematics at the university of Pavia, and this post he held, together with the directorship of the observatory of Brera, for six years. He was invited by the Royal Society of London to undertake an expedition to California to observe the transit of Venus in 1769; but this was prevented by the recent decree of the Spanish government for the expulsion of the Jesuits from its dominions. The vanity, egotism and petulance of Boscovich provoked his rivals and made him many enemies, so that in hope of peace he was driven to frequent change of residence. About 1770 he removed to Milan, where he continued to teach and to hold the directorship of the observatory of Brera; but being deprived of his post by the intrigues of his associates he was about to retire to his native place, when the news reached him (1773) of the suppression of his order in Italy. Uncertainty as to his future led him to accept an invitation from the king of France to Paris, where he was naturalized and was appointed director of optics for the marine, an office instituted for him, with a pension of 8000 livres. He remained there ten years, but his position became irksome, and at length intolerable. He continued, however, to devote himself diligently to the pursuits of science, and published many remarkable memoirs. Among them were an elegant solution of the problem to determine the orbit of a comet from three observations, and memoirs on the micrometer and achromatic telescopes. In 1783 he returned to Italy, and spent two years at Bassano, where he occupied himself with the publication of his Opera pertinentia ad opticam et astronomiam, &c., which appeared in 1785 in five volumes quarto. After a visit of some months to the convent of Vallombrosa, he went to Milan and resumed his literary labours. But his health was failing, his reputation was on the wane, his works did not sell, and he gradually sank a prey to illness and disappointment. He fell into melancholy, imbecility, and at last madness, with lucid intervals, and died at Milan on the 15th (13th) of February 1787. In addition to the works already mentioned Boscovich published Elementa universae matheseos (1754), the substance of the course of study prepared for his pupils; and a narrative of his travels, entitled Giornale di un viaggio da Constantinepoli in Polonia, of which several editions and a French translation appeared. His latest labour was the editing of the Latin poems of his friend Benedict Stay on the philosophy of Descartes, with scientific annotations and supplements. (W. L. R. C.)
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Categories: BOS-BOW | Astronomers | Jesuits | Mathematicians
   | Ruggiero Giuseppe Boscovich in the Catholic Encyclopedia - CATHOLIC ENCYCLOPEDIA: Ruggiero Giuseppe Boscovich |
| | Roger Joseph Boscovich, by Joseph MacDonnell - Roger Joseph Boscovich, S.J. |
| | Information on Boscovich's scientific legacy and ethnic affiliation - Dubrovnik, Konavle, Boka kotorska |
| | Ruggiero Boscovich on various Croatian Dinar banknotes. - Physicists on Banknotes Page Two - Jacob Bourjaily |
| | Roger Boscovich on Britannica 1911 - Roger Joseph Boscovich - LoveToKnow 1911 |
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