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Dornbusch Lighthouse
Dornbusch Lighthouse (german: Leuchtturm Dornbusch) refers to the lighthouse officially designated as ''Leuchtfeuer Dornbusch/Hiddensee'' ("Dornbusch/Hiddensee Beacon") in the north of the German island of Hiddensee in Mecklenburg-Vorpommern on the Baltic Sea coast. Its international serial number is ''C 2588''. The lighthouse stands on the 72-metre-high ''Schluckswiek''Birgit Toussaint, Frank Toussaint, Matthias Hünsch: ''Leuchttürme an der Deutschen Ostseeküste.'' Edition Maritim 2009, . in the so-called ''Hochland'' ("highland") area of the island. Access Since 1994 the lighthouse, with its 102 steps, has been open to the public. So that it does not become too crowded at the top, only 15 visitors may be admitted at any one time. Visitors must be at least six years old. When wind speeds reach Force 6 or higher, the tower is closed for safety reasons. Technical details The lighthouse was built in 1887/1888 of brick construction. It was taken into service on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hiddensee
Hiddensee () is a car-free island in the Baltic Sea, located west of Germany's largest island, Rügen, on the German coast. The island has about 1,000 inhabitants. It was a holiday destination for East German tourists during German Democratic Republic (GDR) times, and continues to attract tourists today. It is the location of the University of Greifswald's ornithological station. Gerhart Hauptmann and Walter Felsenstein are buried there. Name The name ''Hedinsey'' surfaces as early as the ''Prose Edda'' and the ''Gesta Danorum'' written by Saxo Grammaticus and means "Island of Hedin". The legendary Norwegian king, Hedin, was supposed to have fought here for a woman or even just for gold. Under Danish rule the name ''Hedins-Oe'' ("Hedin's Island") was common. Even in 1880 the island was shown in German maps as ''Hiddensjö'' and, in 1929, in German holiday guides as ''Hiddensöe''. Its full Germanization to ''Hiddensee'' is thus relatively recent. Geography Hiddensee is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mecklenburg-Vorpommern
Mecklenburg-Vorpommern (MV; ; nds, Mäkelborg-Vörpommern), also known by its anglicized name Mecklenburg–Western Pomerania, is a state in the north-east of Germany. Of the country's sixteen states, Mecklenburg-Vorpommern ranks 14th in population; it covers an area of , making it the sixth largest German state in area; and it is 16th in population density. Schwerin is the state capital and Rostock is the largest city. Other major cities include Neubrandenburg, Stralsund, Greifswald, Wismar, and Güstrow. It was named after the 2 regions of Mecklenburg and Vorpommern (which means West Pomerania). The state was established in 1945 after World War II through the merger of the historic regions of Mecklenburg and the Prussian Western Pomerania by the Soviet military administration in Allied-occupied Germany. It became part of the German Democratic Republic in 1949, but was dissolved in 1952 during administrative reforms and its territory divided into the districts of R ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Baltic Sea
The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden and the North and Central European Plain. The sea stretches from 53°N to 66°N latitude and from 10°E to 30°E longitude. A marginal sea of the Atlantic, with limited water exchange between the two water bodies, the Baltic Sea drains through the Danish Straits into the Kattegat by way of the Øresund, Great Belt and Little Belt. It includes the Gulf of Bothnia, the Bay of Bothnia, the Gulf of Finland, the Gulf of Riga and the Bay of Gdańsk. The " Baltic Proper" is bordered on its northern edge, at latitude 60°N, by Åland and the Gulf of Bothnia, on its northeastern edge by the Gulf of Finland, on its eastern edge by the Gulf of Riga, and in the west by the Swedish part of the southern Scandinavian Peninsula. The Baltic Sea is connected by artificial waterways to the White Sea via the White Sea–Baltic Canal and to the German ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fresnel Lens
A Fresnel lens ( ; ; or ) is a type of composite compact lens developed by the French physicist Augustin-Jean Fresnel (1788–1827) for use in lighthouses. It has been called "the invention that saved a million ships." 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 design. A Fresnel lens can be made much thinner than a comparable conventional lens, in some cases taking the form of a flat sheet. The simpler dioptric (purely refractive) form of the lens was first proposed by Count Buffon and independently reinvented by Fresnel. The ''catadioptric'' form of the lens, entirely invented by Fresnel, has outer elements that use total internal reflection as well as refraction; it can capture more oblique light from a light source and add it to the beam of a lighthouse, making the light visible from greater distances. Description The Fresnel lens redu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metal-halide Lamp
A metal-halide lamp is an electrical lamp that produces light by an electric arc through a gaseous mixture of vaporized mercury and metal halides (compounds of metals with bromine or iodine). It is a type of high-intensity discharge (HID) gas discharge lamp. Developed in the 1960s, they are similar to mercury vapor lamps, but contain additional metal halide compounds in the quartz arc tube, which improve the efficiency and color rendition of the light. The most common metal halide compound used is sodium iodide. Once the arc tube reaches its running temperature, the sodium dissociates from the iodine, adding orange and reds to the lamp's spectrum from the sodium D line as the metal ionizes. As a result, metal-halide lamps have high luminous efficacy of around 75–100 lumens per watt, which is about twice that of mercury vapor lights and 3 to 5 times that of incandescent lights and produce an intense white light. Lamp life is 6,000 to 15,000 hours. As one of the most effici ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouse
A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lenses and to serve as a beacon for navigational aid, for maritime pilots at sea or on inland waterways. Lighthouses mark dangerous coastlines, hazardous shoals, reefs, rocks, and safe entries to harbors; they also assist in aerial navigation. Once widely used, the number of operational lighthouses has declined due to the expense of maintenance and has become uneconomical since the advent of much cheaper, more sophisticated and effective electronic navigational systems. History Ancient lighthouses Before the development of clearly defined ports, mariners were guided by fires built on hilltops. Since elevating the fire would improve the visibility, placing the fire on a platform became a practice that led to the development of the lighthouse. In antiquity, the lighthouse functioned more as an entrance marker to ports than as a warning signal for reefs a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaufort Scale
The Beaufort scale is an empirical measure that relates wind speed to observed conditions at sea or on land. Its full name is the Beaufort wind force scale. History The scale was devised in 1805 by the Irish hydrographer Francis Beaufort (later Rear Admiral), a Royal Navy officer, while serving on . The scale that carries Beaufort's name had a long and complex evolution from the previous work of others (including Daniel Defoe the century before) to when Beaufort was Hydrographer of the Navy in the 1830s, when it was adopted officially and first used during the voyage of HMS ''Beagle'' under Captain Robert FitzRoy, who was later to set up the first Meteorological Office (Met Office) in Britain giving regular weather forecasts. In the 18th century, naval officers made regular weather observations, but there was no standard scale and so they could be very subjective – one man's "stiff breeze" might be another's "soft breeze". Beaufort succeeded in standardising the sc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Focal Height
Focal or FOCAL may refer to: *Focal (lexicographical website), an Irish lexicographical website *FOCAL (programming language), a programming language for the PDP-8 and similar machines *Focal (HP-41), for programming HP calculators *FOCAL (spacecraft), a proposed space telescope *FOCAL International, a trade body representing the film archive industry *Focal-JMLab, a French manufacturer of audio equipment *Focal Radio, a radio station based in Stoke-on-Trent, England *Focal neurologic signs See also *Focal point (other) Focal point may refer to: * Focus (optics) * Focus (geometry) * Conjugate points, also called focal points * Focal point (game theory) * Unicom Focal Point UNICOM Focal Point is a portfolio management and decision analysis tool used by the prod ... * Focus (other) * {{disambiguation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Postage Stamp
A postage stamp is a small piece of paper issued by a post office, postal administration, or other authorized vendors to customers who pay postage (the cost involved in moving, insuring, or registering mail), who then affix the stamp to the face or address-side of any item of mail—an envelope or other postal cover (e.g., packet, box, mailing cylinder)—that they wish to send. The item is then processed by the postal system, where a postmark or cancellation mark—in modern usage indicating date and point of origin of mailing—is applied to the stamp and its left and right sides to prevent its reuse. The item is then delivered to its addressee. Always featuring the name of the issuing nation (with the exception of the United Kingdom), a denomination of its value, and often an illustration of persons, events, institutions, or natural realities that symbolize the nation's traditions and values, every stamp is printed on a piece of usually rectangular, but sometimes triangular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deutsche Post (GDR)
The Deutsche Post (''DP''), also Deutsche Post of the GDR (''German language, German: Deutsche Post der DDR'') was the state-owned postal and telecommunications monopoly of the German Democratic Republic (GDR - East Germany). The DP was placed under the control of the Ministry for Postal and Telecommunication Services of the GDR ''(Ministerium für Post- und Fernmeldewesen der DDR'' -(MPF)) - a member of the Council of Ministers of the GDR ''(Ministerrat der DDR)'' - and was in operation from 1949 until the reunification of Germany on 3 October 1990. Historical background With the end of the Second World War in Europe in May 1945, the Allied Control Council succeeded the former Nazi regime in Germany; as part of this action, the ''Reichspost, Deutsche Reichspost'' (the postal service of the German Reich) was absorbed by the occupation authorities. Germany was divided into Allied Occupation Zones in Germany, four occupation zones, and Berlin into four sectors; the territories east ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deutsche Post
The Deutsche Post AG, operating under the trade name Deutsche Post DHL Group, is a German multinational package delivery and supply chain management company headquartered in Bonn, Germany. It is one of the world's largest courier companies. The postal division delivers 61 million letters each day in Germany, making it Europe's largest such company. The Parcel division DHL is a wholly owned subsidiary claimed to be present in over 220 countries and territories. The Deutsche Post is the successor to the German mail authority Deutsche Bundespost, which was privatized in 1995 and became a fully independent company in 2000. Since its privatization, Deutsche Post has significantly expanded its business area through acquisitions. In late 2014, the group acquired StreetScooter GmbH, a small manufacturer of electric vehicles. Two years later, the group acquired UK Mail, a business-focused postal service in the UK for US$315.5 million (£243 million). The former company became a divi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Indicia (philately)
In philately, indicia are markings on a mail piece (as opposed to an adhesive stamp) showing that postage has been prepaid by the sender. ''Indicia'' is the plural of the Latin word ''indicium'', meaning distinguishing marks, signs or identifying marks. The term imprinted stamp is used more or less interchangeably, but some indicia are not imprinted stamps. One example is the handstamp, which can be seen in a photo on this page. Forms of indicia Indicia can take a number of forms, including printed designs or handstamps where a stamp would normally be that indicate the pre-payment of postage. Imprinted stamps on postal stationery are indicia. The term also refers to a meter stamp impressionCarlton, R. Scott. ''The International Encyclopaedic Dictionary of Philately''. Iola WI: Krause Publications, 1997, p.117. . or the part thereof that indicates the value or postal rate.Mackay, James. ''Philatelic Terms Illustrated''. 4th edition. London: Stanley Gibbons, 2003, p.71. . Se ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
