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Observation Towers
An observation tower is a tower used to view events from a long distance and to create a full 360 degree range of vision to conduct long distance observations. Observation towers are usually at least tall and are made from stone, iron, and wood. Many modern towers are also used as TV towers, restaurants, or churches. The towers first appeared in the ancient world, as long ago as the Babylonian Empire. Observation towers that are used as guard posts or observation posts over an extended period to overlook an area are commonly called watchtowers instead. Similar instances of observation towers are recognised as crow's nests, observatories, viewing platforms, etc. Construction and usage Observation towers are an easily visible sight on the countryside, as they must rise over trees and other obstacles to ensure clear vision. Older control rooms have often been likened to medieval chambers. The heavy use of stone, iron, and wood in their construction helps to create this illusi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Auersberg Observation Tower (aka)
Auersberg is a mountain in the Ore Mountains in Saxony, southeastern Germany. Auersberg is above sea level. It is located in the district of Wildenthal (Eibenstock), Wildenthal not far from the Czech Republic, Czech border southeast of Eibenstock and northwest of Johanngeorgenstadt. Location and Geology Auersberg belongs to Wildenthal, which has been a district of Eibenstock since 1994. North of the Auersberg lies the Sosa dam. Below the summit there is a parking lot. When ascending to the Auersberg, you cross the Johanngeorgenstadt district of Sauschwemme. The main type of rock is medium-grained granite, which includes tourmaline. Also included in the granite are silver, tin and iron compounds, which were mined as early as the 16th century. At the peak of mining activity, there were up to 300 mines on the Auersberg. These included the Churhaus Saxony. In addition to the aforementioned rocks, quartz and slate have been proven to occur in veins on the summit. References ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Space Needle At Dusk 2011 - 02
Space is a three-dimensional continuum containing positions and directions. In classical physics, physical space is often conceived in three linear dimensions. Modern physicists usually consider it, with time, to be part of a boundless four-dimensional continuum known as ''spacetime''. The concept of space is considered to be of fundamental importance to an understanding of the physical universe. However, disagreement continues between philosophers over whether it is itself an entity, a relationship between entities, or part of a conceptual framework. In the 19th and 20th centuries mathematicians began to examine geometries that are non-Euclidean, in which space is conceived as '' curved'', rather than '' flat'', as in the Euclidean space. According to Albert Einstein's theory of general relativity, space around gravitational fields deviates from Euclidean space. Experimental tests of general relativity have confirmed that non-Euclidean geometries provide a better model for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Funkturm Berlin
The Berliner Funkturm or Funkturm Berlin (Berlin Radio Tower) is a former broadcasting tower in Berlin, Germany. Constructed between 1924 and 1926 to designs by the architect Heinrich Straumer, it was inaugurated on 3 September 1926, on the occasion of the opening of the third Große Deutsche Funkausstellung (Great German Radio Exhibition) in the grounds of the Messe Berlin trade fair in the borough of Charlottenburg-Wilmersdorf. Nicknamed ''der lange Lulatsch'' ("the lanky lad"), the tower is one of the best-known points of interest in the city of Berlin and, while no longer used for broadcasting purposes, it remains a protected monument. Construction method The tower is built as one large steel framework construction, similar to the Eiffel Tower in Paris. The and approximately 600-metric ton radio tower was originally planned strictly as a transmitting tower, but later additions included a restaurant at a height of approximately 52 m, and observation deck at a height o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radar
Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain. The term ''RADAR'' was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term ''radar'' has since entered English and other languages as an anacronym, a common noun, losing all capitalization. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwave domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Control Tower
Air traffic control (ATC) is a service provided by ground-based air traffic controllers who direct aircraft on the ground and through a given section of controlled airspace, and can provide advisory services to aircraft in non-controlled airspace. The primary purpose of ATC is to prevent collisions, organise and expedite the flow of traffic in the air, and provide information and other support for pilots. Personnel of air traffic control monitor aircraft location in their assigned airspace by radar and communicate with the pilots by radio. To prevent collisions, ATC enforces traffic separation rules, which ensure each aircraft maintains a minimum amount of 'empty space' around it at all times. It is also common for ATC to provide services to all private, military, and commercial aircraft operating within its airspace; not just civilian aircraft. Depending on the type of flight and the class of airspace, ATC may issue ''instructions'' that pilots are required to obey, or ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Serpent Mound Tower Lg
Serpent or The Serpent may refer to: * Snake, a carnivorous reptile of the suborder Serpentes Mythology and religion * Sea serpent, a monstrous ocean creature * Serpent symbolism, the snake in religious rites and mythological contexts * Serpents in the Bible, notably one in the Old Testament Garden of Eden * Snakes in Chinese mythology * Snakes in mythology Arts and entertainment * ''Serpent'' (novel), a 1999 novel by Clive Cussler * Serpent (roller coaster), a steel roller coaster at Six Flags AstroWorld * ''Serpent'' (video game), a 1990 Game Boy action video game * ''The Serpent'', a play created by The Open Theater * "The Serpent" (''Da Vinci's Demons''), second episode of the American TV series ''Da Vinci's Demons'' * ''The Serpent'' (novel), a 1963 novel by Jane Gaskell * "The Serpent" (''Once Upon a Time in Wonderland''), an episode of the series ''Once Upon a Time in Wonderland'' * ''The Serpent'' (TV series), a 2021 miniseries co-produced by BBC One and Netfli ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Majdanek Toren
Majdanek (or Lublin) was a Nazi concentration and extermination camp built and operated by the SS on the outskirts of the city of Lublin during the German occupation of Poland in World War II. It had three gas chambers, two wooden gallows, and some 227 structures in all, placing it among the largest of Nazi concentration camps. Although initially intended for forced labor rather than extermination, it was used to murder people an estimated 78,000 people during Operation Reinhard, the German plan to murder all Polish Jews within their own occupied homeland. In operation from 1 October 1941 to 22 July 1944, it was captured nearly intact. The rapid advance of the Soviet Red Army during Operation Bagration prevented the SS from destroying most of its infrastructure, and Deputy Camp Commandant Anton Thernes failed to remove the most incriminating evidence of war crimes. The camp was nicknamed Majdanek ("little Majdan") in 1941 by local residents, as it was adjacent to the Lubl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amusement Park
An amusement park is a park that features various attractions, such as rides and games, and events for entertainment purposes. A theme park is a type of amusement park that bases its structures and attractions around a central theme, often featuring multiple areas with different themes. Unlike temporary and mobile Travelling funfair, funfairs and traveling carnival, carnivals, amusement parks are stationary and built for long-lasting operation. They are more elaborate than Urban park, city parks and playgrounds, usually providing attractions that cater to a variety of age groups. While amusement parks often contain themed areas, theme parks place a heavier focus with more intricately designed themes that revolve around a particular subject or group of subjects. Amusement parks evolved from European fairs, pleasure gardens, and large Picnic, picnic areas, which were created for people's recreation. World's fairs and other types of international expositions also influenced the em ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Horticulture
Horticulture (from ) is the art and science of growing fruits, vegetables, flowers, trees, shrubs and ornamental plants. Horticulture is commonly associated with the more professional and technical aspects of plant cultivation on a smaller and more controlled scale than agronomy. There are various divisions of horticulture because plants are grown for a variety of purposes. These divisions include, but are not limited to: propagation, arboriculture, landscaping, floriculture and turf maintenance. For each of these, there are various professions, aspects, tools used and associated challenges -- each requiring highly specialized skills and knowledge on the part of the horticulturist. Typically, horticulture is characterized as the ornamental, small-scale and non-industrial cultivation of plants; horticulture is distinct from gardening by its emphasis on scientific methods, plant breeding, and technical cultivation practices, while gardening, even at a professional level, tends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Belle Époque
The Belle Époque () or La Belle Époque () was a period of French and European history that began after the end of the Franco-Prussian War in 1871 and continued until the outbreak of World War I in 1914. Occurring during the era of the French Third Republic, it was a period characterised by optimism, enlightenment, romanticism, regional peace, economic prosperity, conservatism, nationalism, colonial expansion, and technological, scientific and cultural innovations. In this era of France's cultural and artistic climate (particularly in Paris of that time), the arts markedly flourished, and numerous masterpieces of literature, music, theatre and visual art gained extensive recognition. The Belle Époque was so named in retrospect, when it began to be considered a continental European " Golden Age" in contrast to the horrors of the Napoleonic Wars and World War I. The Belle Époque was a period in which, according to historian R. R. Palmer, " European civilisation a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-aircraft Warfare
Anti-aircraft warfare (AAW) is the counter to aerial warfare and includes "all measures designed to nullify or reduce the effectiveness of hostile air action".AAP-6 It encompasses surface-based, subsurface (Submarine#Armament, submarine-launched), and air-based weapon systems, in addition to associated sensor systems, command and control arrangements, and passive measures (e.g. barrage balloons). It may be used to protect naval, army, ground, and air forces in any location. However, for most countries, the main effort has tended to be homeland defense. Missile defense, Missile defense is an extension of air defence, as are initiatives to adapt air defence to the task of intercepting any projectile in flight. Most modern anti-aircraft (AA) weapons systems are optimized for short-, medium-, or long-range air defence, although some systems may incorporate multiple weapons (such as both autocannons and surface-to-air missiles). 'Layered air defence' usually refers to multiple 't ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
