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Cueva De Villa Luz
Cueva de Villa Luz (English: Cave of the Lighted House), also known as Cueva del Azufre and Cueva de las Sardinas, is a cave near Tapijulapa in the southern Mexican state of Tabasco. The springs within the cave are rich in hydrogen sulfide, a gas that is a potent respiratory toxicant and smells like rotten eggs. Within the water sulfide is oxidized to colloidal sulfur which gives the water a milky appearance, and creates sulfuric acid. The cave is essentially a maze about two kilometers in length and primarily etched out of limestone by the sulfuric acid in the water. Hydrogen sulfide is also used by chemoautotrophic bacteria, which form the base of the food web. The cave is a popular tourist destination and visited by many, partly because it is easily accessible. It has been featured on the BBC #REDIRECT BBC #REDIRECT BBC #REDIRECT BBC Here i going to introduce about the best teacher of my life b BALAJI sir. He is the precious gift that I got befor 2yrs . How has helped an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cueva De Villa Luz 2
Cuevas or Cueva (Spanish for "''cave(s)''") may refer to: Places * Cueva de Ágreda, a municipality located in the province of Soria, Castile and León, Spain * Cuevas Bajas, a town and municipality in the province of Málaga, part of the autonomous community of Andalusia in southern Spain * Cuevas de Almudén, a town in the province of Teruel, Aragón, Spain * Cuevas del Almanzora, a municipality of Almería province, in the autonomous community of Andalusia, Spain * Cuevas del Becerro, a town and municipality in the province of Málaga, part of the autonomous community of Andalusia in southern Spain * Cuevas del Valle, a municipality in the province of Ávila, Castile and León, Spain * Cuevas de Provanco, a municipality in the province of Segovia, Castile and León, Spain * Cuevas de San Clemente, a municipality in the province of Burgos, Castile and León, Spain * Cuevas de San Marcos, a town and municipality in the province of Málaga * Cuevas de Vera, a town in south-e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave
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] |
Tapijulapa
Tapijulapa () is a community in the municipality of Tacotalpa, Tabasco. It is a mountain community ninety kilometres from the state capital of Villahermosa, named as a ''Pueblo Mágico In the Southwestern United States, Pueblo (capitalized) refers to the Native tribes of Puebloans having fixed-location communities with permanent buildings which also are called pueblos (lowercased). The Spanish explorers of northern New Spain ...'' (Magical Town) for its white houses with red tiles roofs along cobblestone streets, along with abundant vegetation. Its main landmark is the town church called Santiago Apóstol (Apostle James) as well as an ecological park called Kolem Jaá, one of the largest of its kind in Latin America. It is also noted for a festival in honor of Chaac, the Maya god of rain. References {{coord, 17, 27, 43.41, N, 92, 46, 40.48, W, display=inline,title Tourist attractions in Tabasco Pueblos Mágicos Populated places in Tabasco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mexico
Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatemala, Belize, and the Caribbean Sea; and to the east by the Gulf of Mexico. Mexico covers ,Mexico ''''. . making it the world's 13th-largest country by are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tabasco
Tabasco (), officially the Free and Sovereign State of Tabasco ( es, Estado Libre y Soberano de Tabasco), is one of the 32 Federal Entities of Mexico. It is divided into 17 municipalities and its capital city is Villahermosa. It is located in the southeast of the country, bordering the states of Campeche to the northeast, Veracruz to the west, and Chiapas to the south and the Petén department of Guatemala to the southeast. It has a coastline to the north with the Gulf of Mexico. Most of the state is covered in rainforest as, unlike most other areas of Mexico, it has plentiful rainfall year-round. The state is also home to La Venta, the major site of the Olmec civilization, considered to be the origin of later Mesoamerican cultures. It produces significant quantities of petroleum and natural gas. Geography The state is located in the southeast of Mexico, bordering the states of Campeche, Chiapas, and Veracruz, with the Gulf of Mexico to the north and the country of Guatemala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogen Sulfide
Hydrogen sulfide is a chemical compound with the formula . It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. The underground mine gas term for foul-smelling hydrogen sulfide-rich gas mixtures is ''stinkdamp''. Swedish chemist Carl Wilhelm Scheele is credited with having discovered the chemical composition of purified hydrogen sulfide in 1777. The British English spelling of this compound is hydrogen sulphide, a spelling no longer recommended by the Royal Society of Chemistry or the International Union of Pure and Applied Chemistry. Hydrogen sulfide is toxic to humans and most other animals by inhibiting cellular respiration in a manner similar to hydrogen cyanide. When it is inhaled or it or its salts are ingested in high amounts, damage to organs occurs rapidly with symptoms ranging from breathing difficulties to convulsions and death. Despite this, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Colloidal Sulfur
Sulfur (or sulphur in British English) is a chemical element with the symbol S and atomic number 16. It is abundant, multivalent and nonmetallic. Under normal conditions, sulfur atoms form cyclic octatomic molecules with a chemical formula S8. Elemental sulfur is a bright yellow, crystalline solid at room temperature. Sulfur is the tenth most abundant element by mass in the universe and the fifth most on Earth. Though sometimes found in pure, native form, sulfur on Earth usually occurs as sulfide and sulfate minerals. Being abundant in native form, sulfur was known in ancient times, being mentioned for its uses in ancient India, ancient Greece, China, and ancient Egypt. Historically and in literature sulfur is also called brimstone, which means "burning stone". Today, almost all elemental sulfur is produced as a byproduct of removing sulfur-containing contaminants from natural gas and petroleum.. Downloahere The greatest commercial use of the element is the production of s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sulfuric Acid
Sulfuric acid (American spelling and the preferred IUPAC name) or sulphuric acid ( Commonwealth spelling), known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with the molecular formula . It is a colorless, odorless and viscous liquid that is miscible with water. Pure sulfuric acid does not exist naturally on Earth due to its strong affinity to water vapor; it is hygroscopic and readily absorbs water vapor from the air. Concentrated sulfuric acid is highly corrosive towards other materials, from rocks to metals, since it is an oxidant with powerful dehydrating properties. Phosphorus pentoxide is a notable exception in that it is not dehydrated by sulfuric acid, but to the contrary dehydrates sulfuric acid to sulfur trioxide. Upon addition of sulfuric acid to water, a considerable amount of heat is released; thus the reverse procedure of adding water to the acid should not be performed since the heat released may boi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
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 limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chemotroph
A Chemotroph is an organism that obtains energy by the oxidation of electron donors in their environments. These molecules can be organic ( chemoorganotrophs) or inorganic (chemolithotrophs). The chemotroph designation is in contrast to phototrophs, which use photons. Chemotrophs can be either autotrophic or heterotrophic. Chemotrophs can be found in areas where electron donors are present in high concentration, for instance around hydrothermal vents. Chemoautotroph Chemoautotrophs, in addition to deriving energy from chemical reactions, synthesize all necessary organic compounds from carbon dioxide. Chemoautotrophs can use inorganic energy sources such as hydrogen sulfide, elemental sulfur, ferrous iron, molecular hydrogen, and ammonia or organic sources to produce energy. Most chemoautotrophs are extremophiles, bacteria or archaea that live in hostile environments (such as deep sea vents) and are the primary producers in such ecosystems. Chemoautotrophs generally fall into s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planet Earth (2006 TV Series)
''Planet Earth'' is a 2006 British television series produced by the BBC Natural History Unit. Five years in the making, it was the most expensive nature documentary series ever commissioned by the BBC and also the first to be filmed in high-definition video, high definition. The series received multiple awards, including four Emmy Awards, a Peabody Award, and an award from the Royal Television Society. ''Planet Earth'' premiered on 5 March 2006 in the United Kingdom on BBC One, and by June 2007 had been shown in 130 countries. The original version was narrated by David Attenborough, whilst some international versions used alternative narrators. The series has eleven episodes, each of which features a global overview of a different biome or habitat on Earth. At the end of each fifty-minute episode, a ten-minute featurette takes a behind-the-scenes look at the challenges of filming the series. Ten years later, the BBC announced a six-part sequel had been commissioned, titled ''P ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wonders Of The Solar System (TV Series)
''Wonders of the Solar System'' is a 2010 television series co-produced by the BBC and Science Channel, and hosted by physicist Brian Cox. ''Wonders of the Solar System'' was first broadcast in the United Kingdom on BBC Two on 7 March 2010. The series comprises five episodes, each of which focuses on an aspect of the Solar System and features a 'wonder' relevant to the theme. The series was described as one of the most successful to appear on BBC Two in recent years. An accompanying book with the same name was also published. On 31 March 2011, the series won the prestigious George Foster Peabody Award for excellence in documentary film-making. Episodes 1. "Empire of the Sun" The first episode illustrates how the formation and behaviour of the Sun affects each planet in the Solar System. During this episode, Cox visits India to view and explain the workings of a total solar eclipse and the partial eclipses that occur on other planets. He travels to the Iguazu Falls to rel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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