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Polylux (overhead Projector)
The Polylux was an overhead projector produced in the German Democratic Republic (GDR). It also functioned as a generic name for overhead projectors in the GDR. The Polylux was produced in the VEB (Volkseigener Betrieb: people’s enterprise) Phylatex-Physikgeräte DDR, in Frankenberg near Chemnitz (then known as Karl-Marx-Stadt). It was, amongst others, widespread in educational institutions in the GDR. After 2004, Polylux was a registered trademark of the company Polytechnik Frankenberg GmbH, which as a successor firm of the original Polylux producer continued to produce the device. Until the Wende in 1989, 27,000 devices were produced on average each year, and were also exported to the Soviet Union. In the year 2004, 6,000 devices were still being produced. In 2006, the enterprise closed down. The word Polylux (from Greek and Latin, meaning "much light") originates with Erich Schöpe, a physicist and former director of the Polylux manufacturer. Today, the word enjoys cult ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pirna DDR Museum Polylux
Pirna (; , ) is a town in Saxony, Germany and capital of the administrative district Sächsische Schweiz-Osterzgebirge. The town's population is over 37,000. Pirna is located near Dresden and is an important district town as well as a ''Große Kreisstadt''. Geography Geographical location Pirna is located in the vicinity of the Elbe Sandstone Mountains, Sandstone Mountains in the upper Elbe valley, where two nearby tributaries, Wesenitz from the north and Gottleuba from the south, flow into the Elbe. It is also called the "gate to the Saxon Switzerland" (German language, Ger: ''Tor zur Sächsischen Schweiz''). The Saxony (wine region), Saxon wine region (German language, Ger: ''Sächsische Weinstraße''), which was established in 1992, stretches from Pirna via Pillnitz, Dresden, and Meissen to Diesbar-Seußlitz. Neighboring municipalities Pirna is located southeast of Dresden. Neighboring municipalities are Bad Gottleuba-Berggießhübel (town), Bahretal, Dohma, Dohna ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Die Wende
The Peaceful Revolution () – also, in German called ' (, "the turning point") – was one of the peaceful revolutions of 1989 at the peak of the collapse of the Eastern Bloc in the late 1980s. A process of sociopolitical change that led to, among other openings, the opening of their borders to the Western world. These events were precipitated by Solidarity (Polish trade union), Solidarity's peaceful Polish Round Table Agreement, revolution in Poland and enabled by Soviet leader Mikhail Gorbachev's decision to abandon intervention in the Soviet sphere of influence and other shifts to the Soviet Union's foreign policy. In East Germany—the former German Democratic Republic (GDR or DDR)—the peaceful revolution marks the end of the ruling by the Socialist Unity Party of Germany (SED) in 1989 and the transition to a parliamentary system. This peaceful transition later enabled the German reunification in October 1990. The peaceful revolution was marked by nonviolent initiatives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresnel Lens
A Fresnel lens ( ; ; or ) is a type of composite compact lens (optics), lens which reduces the amount of material required compared to a conventional lens by dividing the lens into a set of concentric annular sections. The simpler Dioptrics, dioptric (purely refraction, refractive) form of the lens was first proposed by Georges-Louis Leclerc, Comte de Buffon, and independently reinvented by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. The Catadioptric system, catadioptric (combining refraction and reflection) form of the lens, entirely invented by Fresnel, has outer Prism (optics), prismatic elements that use total internal reflection as well as refraction to capture more oblique light from the light source and add it to the beam, making it visible at greater distances. The design allows the construction of lenses of large aperture and short focal length without the mass and volume of material that would be required by a lens of conventional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rundfunk Berlin-Brandenburg
(; "Berlin-Brandenburg Broadcasting"), commonly shortened to RBB (; stylized as rbb), is an institution under public law (national broadcaster) for the Germany, German states of Berlin and Brandenburg, based in Berlin and Potsdam. RBB was established on 1 May 2003 through the merger of (SFB) and (ORB), based in Potsdam, and is a member of the Association of Public service broadcaster, PSBs in the Federal Republic of Germany (ARD (broadcaster), ARD). Aside from its two main studios in Berlin and Potsdam, RBB also has regional studios in Cottbus and Frankfurt (Oder), and regional offices in Perleberg and Prenzlau. RBB also operates ARD's studio in Warsaw; the responsibility changes every five years between RBB and Westdeutscher Rundfunk, WDR (). RBB also Playout, plays out ARD's digital channels from a center in Potsdam. RBB and WDR are jointly responsible for ARD's television studio in Berlin. History RBB was founded on 25 June 2002 on the basis of a state treaty between ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Latin
Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area around Rome, Italy. Through the expansion of the Roman Republic, it became the dominant language in the Italian Peninsula and subsequently throughout the Roman Empire. It has greatly influenced many languages, Latin influence in English, including English, having contributed List of Latin words with English derivatives, many words to the English lexicon, particularly after the Christianity in Anglo-Saxon England, Christianization of the Anglo-Saxons and the Norman Conquest. Latin Root (linguistics), roots appear frequently in the technical vocabulary used by fields such as theology, List of Latin and Greek words commonly used in systematic names, the sciences, List of medical roots, suffixes and prefixes, medicine, and List of Latin legal terms ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Greek Language
Greek (, ; , ) is an Indo-European languages, Indo-European language, constituting an independent Hellenic languages, Hellenic branch within the Indo-European language family. It is native to Greece, Cyprus, Italy (in Calabria and Salento), southern Albania, and other regions of the Balkans, Caucasus, the Black Sea coast, Asia Minor, and the Eastern Mediterranean. It has the list of languages by first written accounts, longest documented history of any Indo-European language, spanning at least 3,400 years of written records. Its writing system is the Greek alphabet, which has been used for approximately 2,800 years; previously, Greek was recorded in writing systems such as Linear B and the Cypriot syllabary. The Greek language holds a very important place in the history of the Western world. Beginning with the epics of Homer, ancient Greek literature includes many works of lasting importance in the European canon. Greek is also the language in which many of the foundational texts ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Soviet Union
The Union of Soviet Socialist Republics. (USSR), commonly known as the Soviet Union, was a List of former transcontinental countries#Since 1700, transcontinental country that spanned much of Eurasia from 1922 until Dissolution of the Soviet Union, it dissolved in 1991. During its existence, it was the list of countries and dependencies by area, largest country by area, extending across Time in Russia, eleven time zones and sharing Geography of the Soviet Union#Borders and neighbors, borders with twelve countries, and the List of countries and dependencies by population, third-most populous country. An overall successor to the Russian Empire, it was nominally organized as a federal union of Republics of the Soviet Union, national republics, the largest and most populous of which was the Russian SFSR. In practice, Government of the Soviet Union, its government and Economy of the Soviet Union, economy were Soviet-type economic planning, highly centralized. As a one-party state go ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl-Marx-Stadt
Chemnitz (; from 1953 to 1990: Karl-Marx-Stadt (); ; ) is the third-largest city in the Germany, German States of Germany, state of Saxony after Leipzig and Dresden, and the fourth-largest city in the area of former East Germany after (East Berlin, East) Berlin, Leipzig, and Dresden. The city lies in the middle of a string of cities sitting in the densely populated northern Ore Mountain Foreland, foreland of the Elster Mountains, Elster and Ore Mountains, stretching from Plauen in the southwest via Zwickau, Chemnitz and Freiberg to Dresden in the northeast, and is part of the Central German Metropolitan Region. Located in the Ore Mountain Basin, the city is surrounded by the Ore Mountains to the south and the Central Saxon Hills, Central Saxon Hill Country to the north. The city stands on the Chemnitz River, which is formed through the confluence of the rivers Zwönitz (river), Zwönitz and Würschnitz in the borough of Altchemnitz. The name of the city as well as the names o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bundesarchiv Bild 183-T0617-007, Blick In Eine Berufsschulklasse
The German Federal Archives or Bundesarchiv (BArch) (, lit. "Federal Archive") are the national archives of Germany. They were established at the current location in Koblenz in 1952. They are subordinated to the Federal Commissioner for Culture and the Media (Claudia Roth since 2021) under the German Chancellery, and before 1998, to the Federal Ministry of the Interior. On 6 December 2008, the Archives donated 100,000 photos to the public, by making them accessible via Wikimedia Commons. History The federal archive for institutions and authorities in Germany, the first precursor to the present-day Federal Archives, was established in Potsdam, Brandenburg in 1919, a later date than in other European countries. This national archive documented German government dating from the founding of the North German Confederation in 1867. It also included material from the older German Confederation and the Imperial Chamber Court. The oldest documents in this collection dated back to the y ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemnitz
Chemnitz (; from 1953 to 1990: Karl-Marx-Stadt (); ; ) is the third-largest city in the Germany, German States of Germany, state of Saxony after Leipzig and Dresden, and the fourth-largest city in the area of former East Germany after (East Berlin, East) Berlin, Leipzig, and Dresden. The city lies in the middle of a string of cities sitting in the densely populated northern Ore Mountain Foreland, foreland of the Elster Mountains, Elster and Ore Mountains, stretching from Plauen in the southwest via Zwickau, Chemnitz and Freiberg to Dresden in the northeast, and is part of the Central German Metropolitan Region. Located in the Ore Mountain Basin, the city is surrounded by the Ore Mountains to the south and the Central Saxon Hills, Central Saxon Hill Country to the north. The city stands on the Chemnitz River, which is formed through the confluence of the rivers Zwönitz (river), Zwönitz and Würschnitz in the borough of Altchemnitz. The name of the city as well as the names o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frankenberg, Saxony
Frankenberg (; also: Frankenberg/Sa.) is a town in the district of Mittelsachsen, in Saxony, Germany. It is situated on the river Zschopau, northeast of Chemnitz, and some north of the border to the Czech Republic. It was the site of the Nazi concentration camp Sachsenburg. Sons and daughters of the city * Christian Gottlob Höpner (1799–1859), composer and organist * Franz Kuhn (1884-1961), lawyer, sinologist and translator * Eberhard Vogel (born 1943), record footballer of the GDR * Jochen Sachse Jochen Sachse (born 2 October 1948 in Frankenberg, Saxony) is an East German former track and field athlete who competed mainly in the hammer throw. He competed for East Germany in the 1972 Summer Olympics held in Munich Munich is t ... (born 1948), hammer thrower and Olympic medalist * Sonja Morgenstern (born 1955), figure skater * Matthias Weichert (born 1955), operatic baritone * Anett Fiebig (born 1961), swimmer * Anja Möllenbeck (born 1972), discus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
