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Naissaar Lighthouse
__NOTOC__ Naissaar Lighthouse (Estonian: ''Naissaare tuletorn'') is a lighthouse located on the Estonian island of Naissaar in the Gulf of Finland. History The first lighthouses on the island of Naissaar were built in 1788, consisting of beacons on the northernmost and southernmost points of the island. The deteriorating northernmost lighthouse was replaced by a limestone structure in 1849. This lighthouse was heavily damaged during the Crimean War, however it was reconstructed in 1856. The stone lighthouse was destroyed by Soviet troops in 1941, during World War II. Following the war, a temporary wooden lighthouse operated between 1946 and 1960, after which a 45-metre reinforced concrete lighthouse was built in its place. The lantern room was installed in 1999. The lighthouse stands as a landmark in the traditional style of Estonian lighthouses. It was automated, with the lighthouse's keeper leaving service in 2004. See also * List of lighthouses in Estonia This is a lis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Concrete
Concrete is a composite material composed of fine and coarse aggregate bonded together with a fluid cement (cement paste) that hardens (cures) over time. Concrete is the second-most-used substance in the world after water, and is the most widely used building material. Its usage worldwide, ton for ton, is twice that of steel, wood, plastics, and aluminum combined. Globally, the ready-mix concrete industry, the largest segment of the concrete market, is projected to exceed $600 billion in revenue by 2025. This widespread use results in a number of environmental impacts. Most notably, the production process for cement produces large volumes of greenhouse gas emissions, leading to net 8% of global emissions. Other environmental concerns include widespread illegal sand mining, impacts on the surrounding environment such as increased surface runoff or urban heat island effect, and potential public health implications from toxic ingredients. Significant research and development is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Octagonal Prism
In geometry, the octagonal prism is the sixth in an infinite set of prisms, formed by rectangular sides and two regular octagon caps. If faces are all regular, it is a semiregular polyhedron. Symmetry Images The octagonal prism can also be seen as a tiling on a sphere: : Use In optics, octagonal prisms are used to generate flicker-free images in movie projectors. In uniform honeycombs and 4-polytopes It is an element of three uniform honeycombs: It is also an element of two four-dimensional uniform 4-polytope In geometry, a uniform 4-polytope (or uniform polychoron) is a 4-dimensional polytope which is vertex-transitive and whose cells are uniform polyhedra, and faces are regular polygons. There are 47 non-prismatic convex uniform 4-polytopes. There ...s: Related polyhedra External links * Interactive model of an Octagonal Prism {{Polyhedron-stub Zonohedra Prismatoid polyhedra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estonian Language
Estonian ( ) is a Finnic language, written in the Latin script. It is the official language of Estonia and one of the official languages of the European Union, spoken natively by about 1.1 million people; 922,000 people in Estonia and 160,000 outside Estonia. Classification Estonian belongs to the Finnic branch of the Uralic language family. The Finnic languages also include Finnish and a few minority languages spoken around the Baltic Sea and in northwestern Russia. Estonian is subclassified as a Southern Finnic language and it is the second-most-spoken language among all the Finnic languages. Alongside Finnish, Hungarian and Maltese, Estonian is one of the four official languages of the European Union that are not of an Indo-European origin. From the typological point of view, Estonian is a predominantly agglutinative language. The loss of word-final sounds is extensive, and this has made its inflectional morphology markedly more fusional, especially with respect to no ... [...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] |
Estonia
Estonia, formally the Republic of Estonia, is a country by the Baltic Sea in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the sea across from Sweden, to the south by Latvia, and to the east by Lake Peipus and Russia. The territory of Estonia consists of the mainland, the larger islands of Saaremaa and Hiiumaa, and over 2,200 other islands and islets on the eastern coast of the Baltic Sea, covering a total area of . The capital city Tallinn and Tartu are the two largest urban areas of the country. The Estonian language is the autochthonous and the official language of Estonia; it is the first language of the majority of its population, as well as the world's second most spoken Finnic language. The land of what is now modern Estonia has been inhabited by '' Homo sapiens'' since at least 9,000 BC. The medieval indigenous population of Estonia was one of the last " pagan" civilisations in Europe to adopt Ch ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Naissaar
Naissaar ( sv, Nargö; german: Nargen) is an island in Estonia. It is situated in the Gulf of Finland, northwest of the capital city Tallinn, and is administratively part of the Viimsi Parish, Viimsi parish. The island covers an area of . It is long and wide, and lies about from the mainland. The highest point on the island is Kunilamägi, which is above sea level. The island consists predominantly of coniferous forest and piles of stones and boulders. In 2020, the island had a population of 17; in 2011 the island had 35 or so permanent residents and some summer residents. Administratively the island is divided into three villages: Lõunaküla (Storbyn), Tagaküla, Harju County, Tagaküla (Bakbyn), and Väikeheinamaa (Lillängin). Until World War II, the island's native population numbered about 450 people of Estonian Swedes, Estonian-Swedish origin. However, all of the local residents fled from Naissaar to escape the 1944 Soviet invasion of Estonia. During the 1944–1991 S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gulf Of Finland
The Gulf of Finland ( fi, Suomenlahti; et, Soome laht; rus, Фи́нский зали́в, r=Finskiy zaliv, p=ˈfʲinskʲɪj zɐˈlʲif; sv, Finska viken) is the easternmost arm of the Baltic Sea. It extends between Finland to the north and Estonia to the south, to Saint Petersburg in Russia to the east, where the river Neva drains into it. Other major cities around the gulf include Helsinki and Tallinn. The eastern parts of the Gulf of Finland belong to Russia, and some of Russia's most important oil harbors are located farthest in, near Saint Petersburg (including Primorsk). As the seaway to Saint Petersburg, the Gulf of Finland has been and continues to be of considerable strategic importance to Russia. Some of the environmental problems affecting the Baltic Sea are at their most pronounced in the shallow gulf. Proposals for a tunnel through the gulf have been made. Geography The gulf has an area of . The length (from the Hanko Peninsula to Saint Petersburg) is and t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beacon
A beacon is an intentionally conspicuous device designed to attract attention to a specific location. A common example is the lighthouse, which draws attention to a fixed point that can be used to navigate around obstacles or into port. More modern examples include a variety of radio beacons that can be read on radio direction finders in all weather, and radar transponders that appear on radar displays. Beacons can also be combined with semaphoric or other indicators to provide important information, such as the status of an airport, by the colour and rotational pattern of its airport beacon, or of pending weather as indicated on a weather beacon mounted at the top of a tall building or similar site. When used in such fashion, beacons can be considered a form of optical telegraphy. For navigation Beacons help guide navigators to their destinations. Types of navigational beacons include radar reflectors, radio beacons, sonic and visual signals. Visual beacons range from sma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crimean War
The Crimean War, , was fought from October 1853 to February 1856 between Russia and an ultimately victorious alliance of the Ottoman Empire, France, the United Kingdom and Piedmont-Sardinia. Geopolitical causes of the war included the decline of the Ottoman Empire, the expansion of the Russian Empire in the preceding Russo-Turkish Wars, and the British and French preference to preserve the Ottoman Empire to maintain the balance of power in the Concert of Europe. The flashpoint was a disagreement over the rights of Christian minorities in Palestine, then part of the Ottoman Empire, with the French promoting the rights of Roman Catholics, and Russia promoting those of the Eastern Orthodox Church. The churches worked out their differences with the Ottomans and came to an agreement, but both the French Emperor Napoleon III and the Russian Tsar Nicholas I refused to back down. Nicholas issued an ultimatum that demanded the Orthodox subjects of the Ottoman Empire be placed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Lighthouses In Estonia
This is a list of lighthouses in Estonia. Lighthouses See also * Lists of lighthouses References External links * {{Lighthouses in Europe Lists of lighthouses, Estonia Lighthouses in Estonia, * Estonia transport-related lists, Lighthouses Lists of buildings and structures in Estonia, Lighthouses ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses Completed In 1960
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] |
Resort Architecture In Estonia
A resort (North American English) is a self-contained commercial establishment that tries to provide most of a vacationer's wants, such as food, drink, swimming, lodging, sports, entertainment, and shopping, on the premises. The term ''resort'' may be used for a hotel property that provides an array of amenities, typically including entertainment and recreational activities. A hotel is frequently a central feature of a resort, such as the Grand Hotel at Mackinac Island, Michigan. Some resorts are also condominium complexes that are timeshares or owned fractionally or wholly owned condominium. A resort is not always a commercial establishment operated by a single company, but in the late 20th century, that sort of facility became more common. In British English, "resort" means a town which people visit for holidays and days out which usually contains hotels at which such holidaymakers stay. Examples would include Blackpool and Brighton. Destination resort A destinatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
