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Hans Christian Ørsted
Hans Christian Ørsted ( , ; often rendered Oersted in English; 14 August 17779 March 1851) was a Danish physicist and chemist who discovered that electric currents create magnetic fields, which was the first connection found between electricity and magnetism. Oersted's law and the oersted unit (Oe) are named after him. A leader of the Danish Golden Age, Ørsted was a close friend of Hans Christian Andersen and the brother of politician and jurist Anders Sandøe Ørsted, who served as Prime Minister of Denmark from 1853 to 1854. Early life and studies Ørsted was born in Rudkøbing in 1777. As a young boy he developed an interest in science while working for his father, who owned the local pharmacy. He and his brother Anders received most of their early education through self-study at home, going to Copenhagen in 1793 to take entrance exams for the University of Copenhagen, where both brothers excelled academically. By 1796, Ørsted had been awarded honors for his papers in bo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudkøbing
Rudkøbing is a town in Denmark, on the western coast of the island of Langeland. It is the seat of Langeland Municipality, in the Southern Denmark Region. The town is located southeast of Svendborg and is connected to Siø through the Siøsund Bridge. History The first mention of Rudkøbing was in 1287, when it was given market town privileges by Duke Valdemar IV of Schleswig, who held the title of ''rigsforstander'' ( da) under King Eric VI Menved. The original Rudkøbing Church was built most likely in the late 12th century or early 13th century. During the Count's Feud (1534–1536) and again during the Dano-Swedish War (1658–1660), Rudkøbing was under siege by Swedish troops. Both times, the town's fortifications prevented Rudkøbing from immediately falling, but the town eventually had to give in to the Swedes. The town was hit by the Black Plague during the 16th and 17th centuries, and experienced fires in 1590 and 1610. The Ørsted family, which most notably incl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Magnetic Field
A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field. A permanent magnet's magnetic field pulls on ferromagnetic materials such as iron, and attracts or repels other magnets. In addition, a nonuniform magnetic field exerts minuscule forces on "nonmagnetic" materials by three other magnetic effects: paramagnetism, diamagnetism, and antiferromagnetism, although these forces are usually so small they can only be detected by laboratory equipment. Magnetic fields surround magnetized materials, and are created by electric currents such as those used in electromagnets, and by electric fields varying in time. Since both strength and direction of a magnetic field may vary with location, it is described mathematically by a function assigning a vector to each point of space, cal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Voltaic Pile
upright=1.2, Schematic diagram of a copper–zinc voltaic pile. The copper and zinc discs were separated by cardboard or felt spacers soaked in salt water (the electrolyte). Volta's original piles contained an additional zinc disk at the bottom, and an additional copper disk at the top. These were later shown to be unnecessary file:VoltaBattery.JPG, upA voltaic pile on display in the ''Tempio Voltiano'' (the Volta Temple) near Volta's home in Como, Italy The voltaic pile was the first electrical battery that could continuously provide an electric current to a circuit. It was invented by Italian chemist Alessandro Volta, who published his experiments in 1799. The voltaic pile then enabled a rapid series of other discoveries including the electrical decomposition (electrolysis) of water into oxygen and hydrogen by William Nicholson and Anthony Carlisle (1800) and the discovery or isolation of the chemical elements sodium (1807), potassium (1807), calcium (1808), boron (1808), b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alessandro Volta
Alessandro Giuseppe Antonio Anastasio Volta (, ; 18 February 1745 – 5 March 1827) was an Italian physicist, chemist and lay Catholic who was a pioneer of electricity and power who is credited as the inventor of the electric battery and the discoverer of methane. He invented the voltaic pile in 1799, and reported the results of his experiments in 1800 in a two-part letter to the president of the Royal Society. With this invention Volta proved that electricity could be generated chemically and debunked the prevalent theory that electricity was generated solely by living beings. Volta's invention sparked a great amount of scientific excitement and led others to conduct similar experiments, which eventually led to the development of the field of electrochemistry. Volta also drew admiration from Napoleon Bonaparte for his invention, and was invited to the Institute of France to demonstrate his invention to the members of the institute. Volta enjoyed a certain amount of closeness ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Physics
Physics is the natural science that studies matter, its fundamental constituents, its motion and behavior through space and time, and the related entities of energy and force. "Physical science is that department of knowledge which relates to the order of nature, or, in other words, to the regular succession of events." Physics is one of the most fundamental scientific disciplines, with its main goal being to understand how the universe behaves. "Physics is one of the most fundamental of the sciences. Scientists of all disciplines use the ideas of physics, including chemists who study the structure of molecules, paleontologists who try to reconstruct how dinosaurs walked, and climatologists who study how human activities affect the atmosphere and oceans. Physics is also the foundation of all engineering and technology. No engineer could design a flat-screen TV, an interplanetary spacecraft, or even a better mousetrap without first understanding the basic laws of physic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rudkøbing Pharmacy
Rudkøbing Pharmacy ( da, Rudkøbing Apotek) has since its foundation in 1705 been located at Brogade 15 in Rudkøbing on the island of Langeland, Denmark. The current buildings were constructed in the 1850s and have been listed in the Danish registry of protected buildings and places. The former laboratory and a storage room on the first floor are operated as a museum under the name Det Gamle Apotek by Rudkøbing Museum. History The pharmacy at Brogade 15 was founded on 2 November 1705 by Christopher Becker. The founder's paternal uncle, Johann Gottfried Becker, was the owner of the Elephant Pharmacy on Købmagergade in Copenhagen. A later owner was pharmacist Søren Christian Ørsted, the father of physicist Hans Christian Ørsted and jurist and politician Anders Sandøe Ørsted, who purchased the pharmacy in 1776. The pharmacy was for three generations, between 1854 and 1973, owned by the Bauer family. Prominent figures who have visited the pharmacy include Adam Oehlenschl� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Christian Ørsted Som Ung
Hans may refer to: __NOTOC__ People * Hans (name), a masculine given name * Hans Raj Hans, Indian singer and politician ** Navraj Hans, Indian singer, actor, entrepreneur, cricket player and performer, son of Hans Raj Hans ** Yuvraj Hans, Punjabi actor and singer, son of Hans Raj Hans * Hans clan, a tribal clan in Punjab, Pakistan Places * Hans, Marne, a commune in France * Hans Island, administrated by Greenland and Canada Arts and entertainment * ''Hans'' (film) a 2006 Italian film directed by Louis Nero * Hans (Frozen), the main antagonist of the 2013 Disney animated film ''Frozen'' * ''Hans'' (magazine), an Indian Hindi literary monthly * ''Hans'', a comic book drawn by Grzegorz Rosiński and later by Zbigniew Kasprzak Other uses * Clever Hans, the "wonder horse" * ''The Hans India'', an English language newspaper in India * HANS device, a racing car safety device *Hans, the ISO 15924 code for Simplified Chinese script See also *Han (other) *Hans im Glück, a Germa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Prime Minister Of Denmark
The prime minister of Denmark ( da, Danmarks statsminister, fo, Forsætisráðharri, kl, Ministeriuneq) is the head of government in the Kingdom of Denmark comprising the three constituent countries: Denmark, Greenland and the Faroe Islands. Before the creation of the modern office, the kingdom did not initially have a head of government separate from its head of state, namely the monarch, in whom the executive authority was vested. The Constitution of 1849 established a constitutional monarchy by limiting the powers of the monarch and creating the office of . The inaugural holder of the office was Adam Wilhelm Moltke. The prime minister presides over a cabinet that is formally appointed by the monarch. In practice, the appointment of the prime minister is determined by his or her support in the Folketing (the National Parliament). Since the beginning of the 20th century, no single party has held a majority in the Folketing so the prime minister must head a coalition of p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anders Sandøe Ørsted
Anders Sandøe Ørsted (21 December 1778 – 1 May 1860) was a Danish lawyer, politician and jurist. He served as the Prime Minister of Denmark in 1853–1854. Biography He studied philosophy and law at the University of Copenhagen and was admitted to the bar in 1799. He became a noted jurist. An early case overseen by him was that of Hans Jonatan, an escaped slave, which was (at least viewed retrospectively) a major test case in Danish law on slavery; Anders condemned Hans to be returned to the West Indies, where he had been purchased (Hof-og Stadsret: ''Generalmajorinde Henriette de Schimmelmann contra mulatten Hans Jonathan 1802''). Relatively early, he was connected to the national administration, and from 1825 to 1848, he was “''generalprokurør''” (juridical adviser of the government). He drew up the constitution which was granted in 1831. He was cabinet minister 1842–48, and from October 1853 to December 1854 was prime minister. He was forced to resign from hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hans Christian Andersen
Hans Christian Andersen ( , ; 2 April 1805 – 4 August 1875) was a Danish author. Although a prolific writer of plays, travelogues, novels, and poems, he is best remembered for his literary fairy tales. Andersen's fairy tales, consisting of 156 stories across nine volumes and translated into more than 125 languages, have become culturally embedded in the West's collective consciousness, readily accessible to children but presenting lessons of virtue and resilience in the face of adversity for mature readers as well. His most famous fairy tales include "The Emperor's New Clothes", "The Little Mermaid", " The Nightingale", "The Steadfast Tin Soldier", " The Red Shoes", " The Princess and the Pea", "The Snow Queen", "The Ugly Duckling", " The Little Match Girl", and " Thumbelina". His stories have inspired ballets, plays, and animated and live-action films. Early life Hans Christian Andersen was born in Odense, Denmark on 2 April 1805. He had a stepsister named Karen. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Danish Golden Age
The Danish Golden Age ( da, Den danske guldalder) covers a period of exceptional creative production in Denmark, especially during the first half of the 19th century.Kulturnet DanmarkGuide to the Danish Golden Age Although Copenhagen had suffered from fires, bombardment and national bankruptcy, the arts took on a new period of creativity catalysed by Romanticism from Germany. The period is probably most commonly associated with the Golden Age of Danish Painting from 1800 to around 1850 which encompasses the work of Christoffer Wilhelm Eckersberg and his students, including Wilhelm Bendz, Christen Købke, Martinus Rørbye, Constantin Hansen and Wilhelm Marstrand, as well as the sculpture of Bertel Thorvaldsen. It also saw the development of Danish architecture in the Neoclassical style. Copenhagen, in particular, acquired a new look, with buildings designed by Christian Frederik Hansen and Michael Gottlieb Bindesbøll. In relation to music, the Golden Age covers figures inspired ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oersted
The oersted (symbol Oe) is the coherent derived unit of the auxiliary magnetic field H in the centimetre–gram–second system of units (CGS). It is equivalent to 1 dyne per maxwell. Difference between CGS and SI systems In the CGS system, the unit of the H-field is the oersted and the unit of the B-field is the gauss. In the SI system, the unit ampere per meter (A/m), which is equivalent to newton per weber, is used for the H-field and the unit of tesla is used for the B-field. History The unit was established by the IEC in the 1930s in honour of Danish physicist Hans Christian Ørsted. Ørsted discovered the connection between magnetism and electric current when a magnetic field produced by a current-carrying copper bar deflected a magnetised needle during a lecture demonstration. Definition The oersted is defined as a dyne per unit pole. The oersted is (≈) amperes per meter, in terms of SI units. The H-field strength inside a long solenoid wound with 79.58 turn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
