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Caves Of Han-sur-Lesse
The Caves of Han-sur-Lesse (in French: Grottes de Han-sur-Lesse or simply Grottes de Han) refers to a natural complex of caves in Belgium. A major Belgian tourist attraction (around 250-300,000 visitors per year), the caves are located in Wallonia, on the outskirts of the village of Han-sur-Lesse. The caves are formed as the result of an underground erosion of a limestone hill by the river Lesse. For most of its length a meandering river, it abruptly plunges into a sinkhole not far from Han-sur-Lesse. This hole is known as the ''gouffre de Belvaux'' (English: the Belvaux abyss), where it forces its way under the hill over a distance of over as the crow flies before streaming through the cave complex known as the Grottes de Han. Cave complex The caves have a constant temperature of and a high level of humidity. The largest room in the complex is called ''La Salle du Dôme'' (English: the Hall of the Dome); it is across with a vaulted ceiling that reaches . Although modern e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tourism In Belgium
Tourism in Belgium is one of Belgium's industries. Its accessibility from elsewhere in Europe makes it a popular tourist destination. The tourist industry generates 2.8% of Belgium's gross domestic product and employs 3.3% of the working population (142,000 people). 6.7 million people travelled to Belgium in 2005.Travel and Tourism in Belgium - euromonitor.com Two-thirds of them come from the larger nearby countries - , The , the |
Acoustics
Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an Acoustical engineering, acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries. Hearing (sense), Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or for marking territories. Art, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Landforms Of Namur (province)
A landform is a natural or anthropogenic land feature on the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography. Landforms include hills, mountains, canyons, and valleys, as well as shoreline features such as bays, peninsulas, and seas, including submerged features such as mid-ocean ridges, volcanoes, and the great ocean basins. Physical characteristics Landforms are categorized by characteristic physical attributes such as elevation, slope, orientation, stratification, rock exposure and soil type. Gross physical features or landforms include intuitive elements such as berms, mounds, hills, ridges, cliffs, valleys, rivers, peninsulas, volcanoes, and numerous other structural and size-scaled (e.g. ponds vs. lakes, hills vs. mountains) elements including various kinds of inland and oceanic waterbodies and sub-surface features. Mountains, hills, plateaux, and plains are the fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Caves Of Wallonia
A cave or cavern is a natural void in the ground, specifically a space large enough for a human to enter. Caves often form by the weathering of rock and often extend deep underground. The word ''cave'' can refer to smaller openings such as sea caves, rock shelters, and grottos, that extend a relatively short distance into the rock and they are called ''exogene'' caves. Caves which extend further underground than the opening is wide are called ''endogene'' caves. Speleology is the science of exploration and study of all aspects of caves and the cave environment. Visiting or exploring caves for recreation may be called ''caving'', ''potholing'', or ''spelunking''. Formation types The formation and development of caves is known as ''speleogenesis''; it can occur over the course of millions of years. Caves can range widely in size, and are formed by various geological processes. These may involve a combination of chemical processes, erosion by water, tectonic forces, microorgani ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Show Caves In Belgium
Show or The Show may refer to: Competition, event, or artistic production * Agricultural show, associated with agriculture and animal husbandry * Animal show, a judged event in the hobby of animal fancy ** Cat show ** Dog show ** Horse show ** Specialty show, a dog show which reviews a single breed *Show, an artistic production, such as: ** Concert ** Radio show ** Talk show ** Television show ** Play (theatre), Theatre production * Trade fair or trade show Arts, entertainment, and media Films * The Show (1922 film), ''The Show'' (1922 film), starring Oliver Hardy * The Show (1927 film), ''The Show'' (1927 film), directed by Tod Browning * The Show (1995 film), ''The Show'' (1995 film), a hip hop documentary * The Show (2017 film), ''The Show'' (2017 film), an American satirical drama * The Show (2020 film), ''The Show'' (2020 film), a British mystery film Album * Show (The Cure album), ''Show'' (The Cure album), 1993 * Show (The Jesus Lizard album), ''Show'' (The Jesus Lizar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone Caves
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limestone co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alfred Smith Barnes
__NOTOC__ Alfred Smith Barnes (January 28, 1817 – February 17, 1888) was an American publisher and philanthropist. Early life Barnes was born in New Haven, Connecticut, to Eli Barnes of Southington, Connecticut, a farmer and innkeeper, who founded the hamlet of "Barnesville", which is now Fair Haven, Connecticut. His mother's maiden name was "Morris", and her family came from Morris Cove, Connecticut. Barnes went to primary school in Wethersfield, Connecticut, but he left when his father died in 1827. At the age of 12, Barnes was placed with an uncle, Deacon Norman Smith, who lived near Hartford, and he was schooled by Prof. Jesse Olney, working on his uncle's farm in the summer. Career As a young man, Barnes worked as a clerk in a shoe store, then for D. F. Robinson & Co., a publisher in Hartford, where he learned the publishing trade. While in Hartford, he successfully published books aimed at the educational market by Charles Davies on mathematics and Emma Willard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Robert Sténuit
Robert Pierre André Sténuit (born 1933 in Brussels) is a Belgian journalist, writer, and underwater archeologist. In 1962 he spent 24 hours on the floor of the Mediterranean Sea in the submersible "Link Cylinder" developed by Edwin Link, thus becoming the world's first aquanaut. Early career Sténuit began spelunking at the age of seventeen. He discovered diving in 1953, when he began scuba diving in flooded caves in Belgium. He subsequently became interested in speleology, and went on to spend many years exploring the Caves of Han-sur-Lesse. Sténuit had a passion for history. At the age of 20, after reading ''600 Milliards Sous les Mers'' bHarry Reiseberg a work of fiction about shipwrecks and treasure diving, Sténuit left the Free University of Brussels, where he was studying political and diplomatic science in preparation for a career as a lawyer. In 1954 Sténuit began looking for the treasures of the Spanish fleet sunk in 1702 at the Battle of Vigo Bay by English ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Son Et Lumière (show)
''Son et lumière'' ( (French, lit. "sound and light")), or a sound and light show, is a form of nighttime entertainment that is usually presented in an outdoor venue of historic significance. Special lighting effects are projected onto the façade of a building or ruin and synchronized with recorded or live narration and music to dramatize the history of the place. The invention of the concept is credited to Paul Robert-Houdin, who was the curator of the Château de Chambord in France, which hosted the world's first ''son et lumière'' in 1952. Another was established in the early 1960s at the site of the Great Pyramid of Giza in Egypt. This nighttime medium naturally lends itself to ecclesiastical buildings, stately homes and ruins, and has rapidly become very popular in France where about 50 annual productions take place, principally in the Loire Valley, at the Palace of Versailles and at Les Invalides in Paris. The format usually involves no active participation by actors b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wallonia
Wallonia (; french: Wallonie ), or ; nl, Wallonië ; wa, Waloneye or officially the Walloon Region (french: link=no, Région wallonne),; nl, link=no, Waals gewest; wa, link=no, Redjon walone is one of the three regions of Belgium—along with Flanders and Brussels. Covering the southern portion of the country, Wallonia is primarily French-speaking. It accounts for 55% of Belgium's territory, but only a third of its population. The Walloon Region and the French Community of Belgium, which is the political entity responsible for matters related mainly to culture and education, are independent concepts, because the French Community of Belgium encompasses both Wallonia and the bilingual Brussels-Capital Region. There is a German-speaking minority in eastern Wallonia, resulting from the annexation of three cantons previously part of the German Empire at the conclusion of World War I. This community represents less than 1% of the Belgian population. It forms the German-speak ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vicinal Tramway
The National Company of Light Railways ( nl, Nationale Maatschappij Van Buurtspoorwegen, abbreviated as NMVB; french: Société Nationale des Chemins de fer Vicinaux, abbreviated as SNCV) was a state-owned transportation provider which comprised a system of narrow-gauge tramways or local railways in Belgium, which covered the whole country, including the countryside, and had a greater route length than the mainline railway system. They were and included electrified city lines and rural lines using steam locomotives and diesel railcars; half the system was electrified. The company gradually switched to buses and dismantled the tram tracks. Only the coastal line, the Charleroi metro, and the short line to the caves at Han-sur-Lesse are still in commercial use; four museums hold significant collections of rolling stock, including the museum at Schepdaal and the ASVi museum in Thuin. The longest () and oldest (40 years) tourist tramway is the '' Tramway Touristique de l'Aisne'' ( ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Streetcar
A tram (called a streetcar or trolley in North America) is a rail vehicle that travels on tramway tracks on public urban streets; some include segments on segregated right-of-way. The tramlines or networks operated as public transport are called tramways or simply trams/streetcars. Many recently built tramways use the contemporary term light rail. The vehicles are called streetcars or trolleys (not to be confused with trolleybus) in North America and trams or tramcars elsewhere. The first two terms are often used interchangeably in the United States, with ''trolley'' being the preferred term in the eastern US and ''streetcar'' in the western US. ''Streetcar'' or ''tramway'' are preferred in Canada. In parts of the United States, internally powered buses made to resemble a streetcar are often referred to as "trolleys". To avoid further confusion with trolley buses, the American Public Transportation Association (APTA) refers to them as "trolley-replica buses". In the United ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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