Petrus de Dacia (mathematician)

Last updated

Petrus de Dacia, also called Philomena and Peder Nattergal (Peter Nightingale), was a Danish scholar who lived in the 13th century. He worked mainly in Paris and Italy, writing in Latin. He published a calendar of new moon dates for the years 1292-1367. In 1292, he published a book on mathematics that contained a new method for the calculation of cubic roots. He also described a mechanical instrument to predict solar and lunar eclipses as seen from Paris.

Editions

Related Research Articles

<i>Gesta Danorum</i> 12th century work of Danish history

Gesta Danorum is a patriotic work of Danish history, by the 12th-century author Saxo Grammaticus. It is the most ambitious literary undertaking of medieval Denmark and is an essential source for the nation's early history. It is also one of the oldest known written documents about the history of Estonia and Latvia.

<span class="mw-page-title-main">Ole Rømer</span> Danish astronomer (1644–1710)

Ole Christensen Rømer was a Danish astronomer who, in 1676, made the first measurement of the speed of light and discovery that light travels at a finite speed. Rømer also invented the modern thermometer showing the temperature between two fixed points, namely the points at which water respectively boils and freezes.

Sven Hassel was the pen name of the Danish-born Børge Willy Redsted Pedersen known for his novels about German soldiers fighting in World War II. In Denmark he used the pen name Sven Hazel. He is one of the bestselling Danish authors, possibly second only to Hans Christian Andersen.

<span class="mw-page-title-main">Kenny Drew</span> American jazz pianist

Kenneth Sidney "Kenny" Drew was an American-Danish jazz pianist.

<span class="mw-page-title-main">Petrus de Dacia (Dominican friar)</span>

Petrus de Dacia was a 13th-century Swedish friar of the Dominican Order. He was most noted for his correspondence with the mystic and ecstatic Christina von Stommeln. Though he wrote in Latin, Petrus de Dacia is often credited as the first author in Sweden.

<span class="mw-page-title-main">Johannes de Sacrobosco</span>

Johannes de Sacrobosco, also written Ioannes de Sacro Bosco, later called John of Holywood or John of Holybush, was a scholar, monk, and astronomer who taught at the University of Paris.

Dacia, or Kingdom of Dacians, is an ancient geographic demarcation of Central and Southeastern Europe.

<span class="mw-page-title-main">Martin of Dacia</span> 13th-century Danish scholar

Martin of Dacia was a Danish scholar and theologian. He authored De Modis significandi , an influential treatise on grammar.

Christiern Pedersen was a Danish canon, humanist scholar, writer, printer and publisher.

Louis Trolle Hjelmslev was a Danish linguist whose ideas formed the basis of the Copenhagen School of linguistics. Born into an academic family, Hjelmslev studied comparative linguistics in Copenhagen, Prague and Paris. In 1931, he founded the Cercle Linguistique de Copenhague. Together with Hans Jørgen Uldall he developed a structuralist theory of language which he called glossematics, which further developed the semiotic theory of Ferdinand de Saussure. Glossematics as a theory of language is characterized by a high degree of formalism. It is interested in describing the formal and semantic characteristics of language in separation from sociology, psychology or neurobiology, and has a high degree of logical rigour. Hjelmslev regarded linguistics – or glossematics – as a formal science. He was the inventor of formal linguistics. Hjelmslev's theory became widely influential in structural and functional grammar, and in semiotics.

Holger Pedersen was a Danish linguist who made significant contributions to language science and wrote about 30 authoritative works concerning several languages.

<i>De sphaera mundi</i> Book by Sacrobosco

De sphaera mundi is a medieval introduction to the basic elements of astronomy written by Johannes de Sacrobosco c. 1230. Based heavily on Ptolemy's Almagest, and drawing additional ideas from Islamic astronomy, it was one of the most influential works of pre-Copernican astronomy in Europe.

Boetius de Dacia, OP was a 13th-century Danish philosopher.

<span class="mw-page-title-main">Niels Lan Doky</span> Danish jazz pianist, composer and producer

Niels Lan Doky is a Danish jazz pianist, composer and producer. He is the older brother of jazz bassist Chris Minh Doky.

Peder Sørensen (1542–1602), widely known by his Latinized name, Petrus Severinus, was a Danish physician, and one of the most significant followers of Paracelsus. His works include the major treatise Idea medicinae philosophicae (1571), which asserted the superiority of the ideas of Paracelsus to those of Galen. Severinus was a member of Denmark's intellectual elite. His education was supported by the Danish crown and his eventual appointment as royal physician conferred status and authority to his work and opinions. He was a contemporary and intellectual and personal associate of Tycho Brahe who likewise is associated with the evolution of chemistry during the seventeenth century. Daniel Sennert, a professor at Wittenberg wrote in 1619 that most chemical physicians followed the lead of Severinus and even referred to a “Severinian School” of medical theory, which was based on the philosophy of Paracelsus. Scholars including Jole Shackelford and Hiro Hirai have claimed that Severinus was an important predecessor of both Johann Baptista von Helmont and Pierre Gassendi.

<span class="mw-page-title-main">Zurobara</span>

Zurobara was a Dacian town located in the northwest of today's Romanian Banat. It was positioned by the Tibiscus (Timiș) river, north of Sarmizegetusa Regia and south of Ziridava.

Henry of Unna was proctor of the University of Paris in the 14th century, beginning his term on January 13, 1340. He was preceded as proctor by Conrad of Megenberg. A native of Denmark, Henry of Unna's term as proctor extended until February 10, 1341.

<span class="mw-page-title-main">Hans Peder Pedersen-Dan</span> Danish sculptor (1859–1939)

Hans Peder Pedersen-Dan was a Danish sculptor.

Philomena was a young woman believed by some to have been a Christian martyr.

Peder Laale or Peder Lolle was a 14th-century Danish scholar, known for his collection of proverbs Petri Laale Parabulæ, which was first published in 1506. Not much is known about his identity, but textual clues suggest that he may have been a magistrate or judge, or perhaps a priest. He may be identical with the deacon of Odense by name of Peder Nielsen Låle who traveled as a messenger from the Papal nuntius in Denmark and Sweden to the Curia in Avignon in the 1330s, and who later took up a post at the bishopric in Ribe. The theory that Deacon Peder Nielsen Låle is also the author of the proverbs is supported by traits suggestive of French influence in the proverbs, as well as the dates from which they are known. The earliest fragments known are from 1450 suggesting that they must have been well known for a period before that, placing their author's likely life time in the 14th century. The proverbs are considered a treasure of medieval Danish literature.

References