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Cape Kaliakra
Kaliakra ( bg, Калиакра; ro, Caliacra) is a cape in the Southern Dobruja region of the northern Bulgarian Black Sea Coast, which ends with a long and narrow headland east of Kavarna, northeast of Varna and southwest of Mangalia. The coast is steep with vertical cliffs reaching down to the sea. Kaliakra is a nature reserve, where dolphins and cormorants can be observed. It sits on the Via Pontica, a major bird migration route from Africa into Eastern and Northern Europe. Many rare and migrant birds can be seen here in spring and autumn and, like much of this coastline, is home to several rare breeding birds (e.g. pied wheatear and a local race of European shag). The rest of the reserve also has unusual breeding birds; saker falcon, lesser grey shrike and a host of others. It also features the remnants of the fortified walls, water-main, baths and residence of Despot Dobrotitsa in the short-lived Despotate of Dobruja's medieval capital. The Bolata Cove with a small ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Southern Dobruja
Southern Dobruja, South Dobruja or Quadrilateral (Bulgarian: Южна Добруджа, ''Yuzhna Dobrudzha'' or simply Добруджа, ''Dobrudzha''; ro, Dobrogea de Sud, or ) is an area of northeastern Bulgaria comprising Dobrich and Silistra provinces, part of the historical region of Dobruja. It has an area of 7,566 km² and a population of 358,000. It was a part of Romania ''de jure'' from 1913 to 1918 (''de facto'' from 1913 to 1916) and again from 1919 to 1940. History At the beginning of the modern era, Southern Dobruja had a mixed population of Bulgarians and Turks with several smaller minorities, including Gagauz, Crimean Tatars and Romanians. In 1910, of the 282,007 inhabitants of Southern Dobruja, 134,355 (47.6%) were Bulgarians, 106,568 (37.8%) Turks, 12,192 (4.3%) Roma, 11,718 (4.1%) Tatars, and 6,484 (2.4%) Romanians. Southern Dobruja was part of the autonomous Bulgarian principality from 1878 and part of the independent Bulgarian state from 1908 until Bulgari ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bolata
Bolata ( bg, Болата) is a small cove and Nature reserve located in the Northern Bulgarian Black Sea Coast. Bolata is a locality located in the bay of the same name and is part of the Kaliakra Reserve. It is located in the northern part of the Bulgarian Black Sea coast near the village of Bulgarevo and near a former military station. The area is a wetland of great importance for few rare plant and animal species. The sandy beach is of natural origin and is unique for scandalous shores in the Kaliakra area. A small river has created a narrow gorge and flows into the swamp "Bolata" (Lake Bolata) with an area of 23 ha, covered with a vast mass of reeds. The limestone rocks in the area should be red in color, creating iron oxides in the clay that fill their cracks. The bay is part of the Natura 2000 Kaliakra Complex protected area. Bolata Cove Bolata cove is located at the northern rocky coastline of the Bulgarian seaside. It is 3 km to the north of the Kaliakra headland. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strabo
Strabo''Strabo'' (meaning "squinty", as in strabismus) was a term employed by the Romans for anyone whose eyes were distorted or deformed. The father of Pompey was called "Pompeius Strabo". A native of Sicily so clear-sighted that he could see things at great distance as if they were nearby was also called "Strabo". (; el, Στράβων ''Strábōn''; 64 or 63 BC 24 AD) was a Greek geographer, philosopher, and historian who lived in Asia Minor during the transitional period of the Roman Republic into the Roman Empire. Life Strabo was born to an affluent family from Amaseia in Pontus (in present-day Turkey) in around 64BC. His family had been involved in politics since at least the reign of Mithridates V. Strabo was related to Dorylaeus on his mother's side. Several other family members, including his paternal grandfather had served Mithridates VI during the Mithridatic Wars. As the war drew to a close, Strabo's grandfather had turned several Pontic fortress ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ian Woosnam
Ian Harold Woosnam (born 2 March 1958) is a Welsh professional golfer. Nicknamed 'Woosie', Woosnam was one of the "Big Five" generation of European golfers, all born within 12 months of one another, all of whom have won majors, and made Europe competitive in the Ryder Cup. His peers in this group were Seve Ballesteros, Nick Faldo, Bernhard Langer, and Sandy Lyle. Woosnam's major championship win was at the 1991 Masters Tournament. He was inducted into the World Golf Hall of Fame in 2017. Early life Woosnam was born in the town of Oswestry, Shropshire in England, and his family lived in the nearby village of St Martin's in Shropshire. Career outline Woosnam started playing at the unique Llanymynech Golf Club, which straddles the Wales-England border. He is short for a male golfer at , but he is a powerful hitter. He played as an amateur in regional competitions in the English county of Shropshire alongside Sandy Lyle. Woosnam turned professional in 1976 and first played ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gary Player
Gary James Player DMS, OIG (born 1 November 1935) is a South African retired professional golfer who is widely considered to be one of the greatest golfers of all time. During his career, Player won nine major championships on the regular tour and nine major championships on the Champions Tour. At the age of 29, Player won the 1965 U.S. Open and became the only non-American to win all four majors in a career, known as the career Grand Slam. At the time, he was the youngest player to do this, though Jack Nicklaus (26) and Tiger Woods (24) subsequently broke this record. Player became only the third golfer in history to win the Career Grand Slam, following Ben Hogan and Gene Sarazen, and only Nicklaus and Woods have performed the feat since. He won over 150 professional tournaments on six continents over seven decades and was inducted into the World Golf Hall of Fame in 1974. Nicknamed the Black Knight, Mr. Fitness, and the International Ambassador of Golf, he is also a reno ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wind Power
Wind power or wind energy is mostly the use of wind turbines to electricity generation, generate electricity. Wind power is a popular, sustainable energy, sustainable, renewable energy source that has a much smaller Environmental impact of wind power, impact on the environment than burning fossil fuels. Historically, wind power has been used in sails, windmills and windpumps but today it is mostly used to generate electricity. Wind farms consist of many individual wind turbines, which are connected to the electric power transmission Electrical grid, network. New Onshore wind farm, onshore (on-land) wind farms are cheaper than new Coal-fired power station, coal or Gas-fired power plant, gas plants, but expansion of wind power is being hindered by fossil fuel subsidies. Onshore wind farms have a greater visual #Impact on environment and landscape, impact on the landscape than some other power stations. Small onshore wind farms can feed some energy into the grid or provide power t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kaliakra Transmitter
The Kaliakra transmitter was a huge facility for medium wave broadcasting, which was built after 1988 by the former Soviet Union as a relay transmitter for Southeast Europe. After the collapse of communism in 1989, there was no need for the facility and work was stopped. At that time, nine of the planned 10 masts were already completed and work on the final mast had begun. Some masts were already equipped with cage antennas, while others remained bare. All masts of the station were grounded guyed lattice masts with a triangular cross section, equipped with a cage antenna. Their height varied between and . The masts could work as either a directional antenna with low pattern by using two masts or as a highly directional antenna by using eight masts. The broadcasting company of Bulgaria had no interest in using the facility, as it already had several well-equipped high power medium wave broadcasting facilities in several parts of Bulgaria (e.g. in Vakarel, Pleven and Vidin). Fore ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foghorn
A foghorn or fog signal is a device that uses sound to warn vehicles of navigational hazards such as rocky coastlines, or boats of the presence of other vessels, in foggy conditions. The term is most often used in relation to marine transport. When visual navigation aids such as lighthouses are obscured, foghorns provide an audible warning of rock outcrops, shoals, headlands, or other dangers to shipping. Description All foghorns use a vibrating column of air to create an audible tone, but the method of setting up this vibration differs. Some horns, such as the Daboll trumpet, used vibrating plates or metal reeds, a similar principle to a modern electric car horn. Others used air forced through holes in a rotating cylinder or disk, in the same manner as a siren. Semi-automatic operation of foghorns was achieved by using a clockwork mechanism (or "coder") to sequentially open the valves admitting air to the horns; each horn was given its own timing characteristics to help marine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Navigation
Radio navigation or radionavigation is the application of radio frequencies to determine a position of an object on the Earth, either the vessel or an obstruction. Like radiolocation, it is a type of radiodetermination. The basic principles are measurements from/to electric beacons, especially * Angular directions, e.g. by bearing, radio phases or interferometry, * Distances, e.g. ranging by measurement of time of flight between one transmitter and multiple receivers or vice versa, * Distance ''differences'' by measurement of times of arrival of signals from one transmitter to multiple receivers or vice versa * Partly also velocity, e.g. by means of radio Doppler shift. Combinations of these measurement principles also are important—e.g., many radars measure range and azimuth of a target. Bearing-measurement systems These systems used some form of directional radio antenna to determine the location of a broadcast station on the ground. Conventional navigation techniques a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cardinal Point (optics)
In Gaussian optics, the cardinal points consist of three pairs of points located on the optical axis of a rotationally symmetric, focal, optical system. These are the '' focal points'', the principal points, and the nodal points. For ''ideal'' systems, the basic imaging properties such as image size, location, and orientation are completely determined by the locations of the cardinal points; in fact only four points are necessary: the focal points and either the principal or nodal points. The only ideal system that has been achieved in practice is the plane mirror, however the cardinal points are widely used to ''approximate'' the behavior of real optical systems. Cardinal points provide a way to analytically simplify a system with many components, allowing the imaging characteristics of the system to be approximately determined with simple calculations. Explanation The cardinal points lie on the optical axis of the optical system. Each point is defined by the effect the opti ... [...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] |
Russo-Turkish War (1787–1792)
The Russo-Turkish War of 1787–1792 involved an unsuccessful attempt by the Ottoman Empire to regain lands lost to the Russian Empire in the course of the previous Russo-Turkish War (1768–1774). It took place concomitantly with the Austro-Turkish War (1788–1791), Russo-Swedish War (1788–1790) and Theatre War. Background In May and June 1787, Catherine II of Russia made a triumphal procession through New Russia and the annexed Crimea in company with her ally, Holy Roman Emperor Joseph II. These events, the rumors about Catherine's Greek Plan, and the friction caused by the mutual complaints of infringements of the Treaty of Küçük Kaynarca, which had ended the previous war, stirred up public opinion in Constantinople, while the British and French ambassadors lent their unconditional support to the Ottoman war party. War In 1787, the Ottomans demanded that the Russians evacuate the Crimea and give up their holdings near the Black Sea, which Russia saw as a '' cas ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
