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Bremstein Lighthouse
Bremstein Lighthouse ( no, Bremstein fyr) is a coastal lighthouse in Vega Municipality in Nordland county, Norway. The lighthouse is located on the island of Geiterøya, about west of the main island of Vega. The lighthouse was established in 1925 and it was automated in 1980. The tall red, cast iron tower has a white stripe around it. The light sits at an elevation of above sea level. The 3,370,000- candela light can be seen for about . There is also a secondary light up the lighthouse tower. The top light emits three white flashes every 40 seconds and the second light emits a white, red, or green (depending on direction) that is occulting three times every 10 seconds. This lighthouse is somewhat unique in that it has two 2nd order Fresnel lenses, one for each of the two lights. See also *Lighthouses in Norway *List of lighthouses in Norway The following is a sortable, but partial list of active and some decommissioned lighthouses along the Norwegian coastline. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nordland
Nordland (; smj, Nordlánnda, sma, Nordlaante, sme, Nordlánda, en, Northland) is a county in Norway in the Northern Norway region, the least populous of all 11 counties, bordering Troms og Finnmark in the north, Trøndelag in the south, Norrbotten County in Sweden to the east, Västerbotten County to the south-east, and the Atlantic Ocean (Norwegian Sea) to the west. The county was formerly known as ''Nordlandene amt''. The county administration is in the town of Bodø. The remote Arctic island of Jan Mayen has been administered from Nordland since 1995. In the southern part of the county is Vega, listed on the UNESCO World Heritage Site list. Districts The county is divided into traditional districts. These are Helgeland in the south (south of the Arctic Circle), Salten in the centre, and Ofoten in the north-east. In the north-west lie the archipelagoes of Lofoten and Vesterålen. Geography Nordland is located along the northwestern coast of the Scandinavian pe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Norway
Norway, officially the Kingdom of Norway, is a Nordic country in Northern Europe, the mainland territory of which comprises the western and northernmost portion of the Scandinavian Peninsula. The remote Arctic island of Jan Mayen and the archipelago of Svalbard also form part of Norway. Bouvet Island, located in the Subantarctic, is a dependency of Norway; it also lays claims to the Antarctic territories of Peter I Island and Queen Maud Land. The capital and largest city in Norway is Oslo. Norway has a total area of and had a population of 5,425,270 in January 2022. The country shares a long eastern border with Sweden at a length of . It is bordered by Finland and Russia to the northeast and the Skagerrak strait to the south, on the other side of which are Denmark and the United Kingdom. Norway has an extensive coastline, facing the North Atlantic Ocean and the Barents Sea. The maritime influence dominates Norway's climate, with mild lowland temperatures on the se ... [...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] |
Cast Iron
Cast iron is a class of iron–carbon alloys with a carbon content more than 2%. Its usefulness derives from its relatively low melting temperature. The alloy constituents affect its color when fractured: white cast iron has carbide impurities which allow cracks to pass straight through, grey cast iron has graphite flakes which deflect a passing crack and initiate countless new cracks as the material breaks, and ductile cast iron has spherical graphite "nodules" which stop the crack from further progressing. Carbon (C), ranging from 1.8 to 4 wt%, and silicon (Si), 1–3 wt%, are the main alloying elements of cast iron. Iron alloys with lower carbon content are known as steel. Cast iron tends to be brittle, except for malleable cast irons. With its relatively low melting point, good fluidity, castability, excellent machinability, resistance to deformation and wear resistance, cast irons have become an engineering material with a wide range of applications and are ... [...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] |
Candela
The candela ( or ; symbol: cd) is the unit of luminous intensity in the International System of Units (SI). It measures luminous power per unit solid angle emitted by a light source in a particular direction. Luminous intensity is analogous to radiant intensity, but instead of simply adding up the contributions of every wavelength of light in the source's spectrum, the contribution of each wavelength is weighted by the standard luminosity function (a model of the sensitivity of the human eye to different wavelengths). A common wax candle emits light with a luminous intensity of roughly one candela. If emission in some directions is blocked by an opaque barrier, the emission would still be approximately one candela in the directions that are not obscured. The word ''candela'' is Latin for ''candle''. The old name "candle" is still sometimes used, as in ''foot-candle'' and the modern definition of ''candlepower''. Definition The 26th General Conference on Weights and Measures (C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coastal 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 and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vega Municipality
Vega is a municipality in Nordland county, Norway. It is part of the Helgeland traditional region. The administrative centre of the municipality is the village of Gladstad. Other villages include Holand and Ylvingen. The municipality comprises about 6,500 islands in the Vega Archipelago. The main island of the municipality is the island of Vega, and it is also the largest at . Bremstein Lighthouse is located in the southwestern part of the municipality. The municipality is the 314th largest by area out of the 356 municipalities in Norway. Vega is the 320th most populous municipality in Norway with a population of 1,175. The municipality's population density is and its population has decreased by 6.4% over the previous 10-year period. General information The municipality of Vega was established on 1 January 1838 (see formannskapsdistrikt law). On 1 January 1965, the Skogsholmen area (population: 196) was transferred from Tjøtta Municipality to Vega Municipality. Then on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vega (island In Norway)
Vega is an island in Vega Municipality in Nordland county, Norway. The island is the largest island in the 6,500 islands in the Vegaøyan archipelago, all of which is a UNESCO World Heritage Site. The island lies in the Norwegian Sea, about west of the mainland of Norway. The islands of Igerøya and Ylvingen lie between Vega and the mainland. The main villages on the island are Gladstad, the administrative centre of the municipality, and Holand. The southwestern part of the island is mountainous, with the highest point being the tall Trollvasstinden. The rest of the island rather flat and marshy. The island is only accessible by boat. There is a regular ferry route from the island to the island of Ylvingen and to the mainland. The island of Vega is connected to the neighboring island of Igerøya by a short bridge. There is also a ferry from Igerøya to the village of Tjøtta which is just south of the town of Sandnessjøen. Media gallery Nes.jpg Neshrbr.jpg Seahou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Occulting Light
A light characteristic is all of the properties that make a particular navigational light identifiable. Graphical and textual descriptions of navigational light sequences and colours are displayed on nautical charts and in Light Lists with the chart symbol for a lighthouse, lightvessel, buoy or sea mark with a light on it. Different lights use different colours, frequencies and light patterns, so mariners can identify which light they are seeing. Abbreviations While light characteristics can be described in prose, e.g. "Flashing white every three seconds", lists of lights and navigation chart annotations use abbreviations. The abbreviation notation is slightly different from one light list to another, with dots added or removed, but it usually follows a pattern similar to the following (see the chart to the right for examples). * An abbreviation of the type of light, e.g. "Fl." for flashing, "F." for fixed. * The color of the light, e.g. "W" for white, "G" for green, "R" for red, " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lighthouses In Norway
The coast of Norway is 100,915 km long and there have been a total of 212 lighthouses along it, but no more than 154 have ever been operational at the same time. The first, Lindesnes Lighthouse, opened in 1655; the newest Lighthouse, Anda, was finished in 1932. The first Lighthouses were private operations, but in 1821 the government made the Channel and Harbor Inspector responsible for Lighthouses in Norway. A dedicated Lighthouse Administration was set up in 1841. The Lighthouses are today mostly automated and since 1974, run by the Norwegian Coastal Administration. Two lightvessels had been operated along the Norwegian coast. "Enigheden" off Ålesund from 1856 vas replaced with Lepsøyrev Lighthouse in 1879, and "Ildjernsflu" moored off Nesodden from 1914 until it was scrapped in 1968. This list, while not complete, is sorted by location along the shipping lane from the border with Sweden in the south to Russia in the northeast. The Norwegian Coastal Administration main ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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