ursinus benjamin (2 Ergebnisse)

Hardcover. Zustand: Gut. 1: VD 17 14:076111A. Acht Huldigungs-Predigten. 1694. [8] Bl., 252 S., H.(Holzschnitt-Vignetten u. Zierleisten). Enth.: Der Brandenburgische Jedidja. 2: Die Neundte Huldigungs-Predigt . 1699. 23 S., H. 3: Die zehende Huldigungs-Predigt . 1699. 24 S., H. 4: Die Christliche Beht-Pflicht . 1695. 28 S., H. 5: Die Höchst-Fürstliche Schulen-Sorge . 1695. [4] Bl., 28 S., H. 6: Kurtze Beschreibung Wie Der Erste Stein . 1695. 63 S., H. 7: Zwey Predigten . 1696. VD17 1:086704C. [4] Bl., 44 S., H. 8: Die beste Bemühung . 1699. 16 S. 9: Die Königliche Majestät, Wie Dieselbige Durchs Wort GOttes . 1701. VD18 10386823. [8] Bl., 26, 16 S., [1] Bl., 32 S., H. (Enth.: Die Erste Predigt, Gehalten Bey der Königlichen Salbung. u.a.) Halbpergamentbd. d. Zeit, Decken mit Brokatpapier bezogen, etwas berieben, Kanten bestoßen, Pergament leicht angeschmutzt. Exlibris "Hertefeld" u. Provenienz-Stempel der ehem. Bibliothek Liebenberg .

LOGARITHMS COME TO EUROPE. First edition, exceptionally rare, of the book that introduced logarithms to Continental Europe; in particular, it was through this work that Johannes Kepler, in ?a happy calamity,? as he called it, became aware of Napier?s epoch-making work, a discovery that enabled him to complete his great Rudolphine Tables (1627), ?the foundation of all planetary calculations for over a century? (Sparrow). ?The earliest publication of Napier?s logarithms on the Continent was in 1618, when Benjamin Ursinus included an excerpt from the canon, shortened by two places, in his Cursus mathematici practici. Through this work Kepler became aware of the importance of Napier?s discovery and expressed his enthusiasm in a letter to Napier dated 28 July 1619, printed in the dedication of his Ephemerides (1620)? (DSB, under Napier). Ursinus assisted Kepler with the computations for the Rudolphine Tables, and Kepler presented and inscribed a copy to Ursinus (Honeyman 1800 ? this copy is now held by the Adler Planetarium in Chicago); in the inscription, Kepler calls Ursinus and Tycho Brahe the scientific fathers of the tables. ?The [Rudolphine] Tables was far more accurate than its predecessors ? its margin of error staying within 10 seconds compared to up to 5 degrees with earlier tables. Instead of providing a sequence of planetary positions for specified days (which Kepler did in his Ephemerides), the Rudolphine Tables were set up to allow calculations of planetary positions for any time in the past or future. The finding of the longitude of a given planet at a given time was based on Kepler?s equation and he exploited logarithms for this tabulation. The precise geocentric positions had to be worked out from combining the heliocentric positions of the planets and the earth that were calculated separately. Logarithmic tabulations were used again to facilitate calculation? (;/a>). Ursinus was for several years Kepler?s assistant: in Prague, he made observations with Kepler of the newly discovered satellites of Jupiter, published in his Narratio (1611), and later, after Kepler had moved to Linz, lived there in Kepler?s house for a year (1613/1614). A second issue of the Cursus Mathematici Practici was published in 1619 (same place and publisher). OCLC lists four copies (British Library, Chicago, Columbia, G?ttingen); KVK adds no further copies outside Germany. As far as we can determine ours is the only copy of the first issue to have appeared in commerce; the Macclesfield copy of the second issue (Sotheby?s, October 26, 2005, lot 2027), in an 18th century binding, realised ?9600 ($16942). Provenance: Patrick Hume, 1st Earl of Marchmont (engraved armorial bookplate on front paste-down).Sir Patrick Hume (1641-1724) was a Scottish Presbyterian statesman and a supporter of William of Orange. He began his long political career in opposition during the reigns of Charles II and James VII and II. Because of his involvement in the 1685 anti-Catholic rebellion, Hume spent several years in exile in the Netherlands. He returned after the revolution of 1688 when he accompanied the Protestant William of Orange to Britain. His forfeited estates were returned to him and in 1696 he was appointed Lord Chancellor. Created Earl of Marchmont in 1697, he opposed the claims of the Jacobites and voted for Parliamentary union between Scotland and England. Benjamin Ursinus (originally Benjamin Behr, Latinized Ursinus), was born on July 15, 1587 in Sprottau in Silesia (now in Poland). Ursinus was a private tutor in Prague and then high school teacher at the Gymnasium of the Unity of the Bohemian brothers in Sobieslau and in Beuthen. From 1615 he taught at the Elector of Brandenburg?s Gymnasium in Joachimsthal near Berlin, a school for gifted boys founded in 1607. From 1630 he was mathematics professor at the University of Frankfurt an der Oder, where he died in 1633 or 1634. We do not know exactly when Ursinus first came into contact with Kepler (some sources suggest that Ursinus was Kepler?s student), but certainly by 1610 Ursinus was acting as Kepler?s assistant. Following the publication of Sidereus nuncius (1610), Kepler, then Imperial Court Astronomer to Rudolph II, was keen to test Galileo?s observations. At the end of August, ?the Elector of Cologne passed through Prague and lent Kepler the very instrument earlier sent to him by Galileo. Consequently, in just over one week (from August 30 to September 8), Kepler was able to observe what he now called for the first time the ?satellites? of Jupiter, and he was careful to do so with the testimony of various named and carefully described witnesses. Presumably, these were the kind of testimonials that Kepler had expected from Galileo. The first was Benjamin Ursinus, ?a diligent student of astronomy who, from the start, because he loves this art and has decided to practice philosophizing in it, never dreams of ruining the credit necessary to a future astronomer by false witness.? But there was more to Ursinus?s reliability than concern for his future reputation. Kepler explained: ?We adopted the following method: with a piece of chalk and out of sight of each other, each of us drew on a wall what he had been able to observe; afterward, each of us went at the same time to see the other?s picture to see if it was in agreement. This [method] is also to be understood for the following [observations]? ? From August 30 to September 5, Benjamin Ursinus was Kepler?s principal co-witness? (Westman, p. 480). Kepler acknowledged Ursinus?s assistance in the preface of his Narratio De Observatis a se quatuor Iouis satellitibus erronibus (1611). ?In 1611 the political situation in Prague took an abrupt turn, ending Kepler?s exhilarating atmosphere of intellectual freedom. The gathering storm of the Counter-Reformation reached the capital, and brought about the abdication of Rudolph II. As warfare and bloodshed surged around him, Kepler sought refuge in Linz, where he was appoin.