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Cades Cove
Cades Cove is an isolated valley located in the Tennessee section of the Great Smoky Mountains National Park. The valley was home to numerous settlers before the formation of the national park. Today Cades Cove, the single most popular destination for visitors to the park, attracts more than two million visitors a year because of its well preserved homesteads, scenic mountain views, and abundant display of wildlife. The Cades Cove Historic District is listed on the National Register of Historic Places. Geology Geologically, Cades Cove is a type of valley known as a "limestone window", created by erosion that removed the older Precambrian sandstone, exposing the younger Paleozoic limestone beneath. More weathering-resistant formations, such as the Cades sandstone which underlies Rich Mountain to the north and the Elkmont and Thunderhead sandstones which form the Smokies crest to the south surround the cove, leaving it relatively isolated within the Smokies. As with neighboring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cades Cove Panorama
CADES (Computer Aided Design and Evaluation System) was a software engineering system produced to support the design and development of the VME/B Operating System for the ICL New Range - subsequently 2900 - computers. From its earliest days, VME/B was developed with the aid of CADES, which was built for the purpose using an underlying IDMS database (latterly upgraded to IDMS(X)). CADES was not merely a version control system for code modules: it was intended to manage all aspects of the software lifecycle from requirements capture through to field maintenance. It was the design of CADES that paved the way for the Alvey Project in IPSE (Integrated Project Support Environments) and Process Control Engines. Because CADES was used for more than 20 years throughout the development of a large software engineering project, the data collected has been used as input to a number of studies of software evolution. Early history CADES was conceived in 1970 by David Pearson and Brian Warb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ordovician
The Ordovician ( ) is a geologic period and system, the second of six periods of the Paleozoic Era. The Ordovician spans 41.6 million years from the end of the Cambrian Period million years ago (Mya) to the start of the Silurian Period Mya. The Ordovician, named after the Welsh tribe of the Ordovices, was defined by Charles Lapworth in 1879 to resolve a dispute between followers of Adam Sedgwick and Roderick Murchison, who were placing the same rock beds in North Wales in the Cambrian and Silurian systems, respectively. Lapworth recognized that the fossil fauna in the disputed strata were different from those of either the Cambrian or the Silurian systems, and placed them in a system of their own. The Ordovician received international approval in 1960 (forty years after Lapworth's death), when it was adopted as an official period of the Paleozoic Era by the International Geological Congress. Life continued to flourish during the Ordovician as it did in the earlier C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Balsam Mountains
The Great Balsam Mountains, or Balsam Mountains, are in the mountain region of western North Carolina, United States. The Great Balsams are a subrange of the Blue Ridge Mountains, which in turn are a part of the Appalachian Mountains. The most famous peak in the Great Balsam range is Cold Mountain, which is the centerpiece of author Charles Frazier's bestselling novel '' Cold Mountain''. The Blue Ridge Parkway runs along its length and at Richland Balsam (milepost 431), the Parkway is at its highest point (6053 feet). Peaks * Richland Balsam – 6410 feet * Black Balsam Knob – 6214 feet * Mount Hardy – 6120 feet * Reinhart Knob – 6080 feet * Grassy Cove Top – 6040 feet * Tennent Mountain – 6040 feet * Sam Knob – 6040 feet * Cold Mountain – 6030 feet * Shining Rock – 6040 feet * Chestnut Bald () Other landmarks * Balsam Gap * Devil's Courthouse * Judaculla Rock (see Tsul 'Kalu; photos) * Tanasee Bald (see Tsul 'Kalu) Flora The area consists of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Overhill Cherokee
Overhill Cherokee was the term for the Cherokee people located in their historic settlements in what is now the U.S. state of Tennessee in the Southeastern United States, on the western side of the Appalachian Mountains. This name was used by 18th-century European traders and explorers from British colonies along the Atlantic coast, as they had to cross the mountains to reach these settlements. Situated along the lower Little Tennessee, lower Tellico, lower Hiwassee and upper Tennessee rivers, the Overhill towns rose to prominence within the Cherokee Nation in the early 18th century. They began to standardize trade with British colonists. In the early part of the century, the Overhill towns' remote location at the far end of the Trading Path meant they were reached only by those traders and explorers adventurous enough to make the difficult journey to the interior over the mountain range. By the middle of the century, the Overhill towns were consistently courted by both B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cherokee
The Cherokee (; chr, ᎠᏂᏴᏫᏯᎢ, translit=Aniyvwiyaʔi or Anigiduwagi, or chr, ᏣᎳᎩ, links=no, translit=Tsalagi) are one of the indigenous peoples of the Southeastern Woodlands of the United States. Prior to the 18th century, they were concentrated in their homelands, in towns along river valleys of what is now southwestern North Carolina, southeastern Tennessee, edges of western South Carolina, northern Georgia (U.S. state), Georgia, and northeastern Alabama. The Cherokee language is part of the Iroquoian languages, Iroquoian language group. In the 19th century, James Mooney, an early American Ethnography, ethnographer, recorded one oral tradition that told of the Tribe (Native American), tribe having migrated south in ancient times from the Great Lakes region, where other Iroquoian Peoples, Iroquoian peoples have been based. However, anthropologist Thomas R. Whyte, writing in 2007, dated the split among the peoples as occurring earlier. He believes that the ori ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cave Gate
A cave gate is a manmade barricade typically placed at, or just inside, the entrance to a cave in an effort to impede or mitigate human access to a cave's interior. The reason for gating a cave can be varied, but may include protecting sensitive or endangered bat species, protecting fragile cave resources, or restricting access to dangerous caves. In the United States, an "industry standard" for gate construction has been developed. This standard has been widely used by agencies such as the National Park Service, U.S. Fish and Wildlife, Bureau of Land Management, U.S. Forest Service, The Nature Conservancy, National Speleological Society The National Speleological Society (NSS) is an organization formed in 1941 to advance the exploration, conservation, study, and understanding of caves in the United States. Originally headquartered in Washington D.C., its current offices are in H ... and others. This standard focuses on proper gate placement that does not hinder airflow that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fallout Shelter
A fallout shelter is an enclosed space specially designated to protect occupants from radioactive debris or fallout resulting from a nuclear explosion. Many such shelters were constructed as civil defense measures during the Cold War. During a nuclear explosion, matter vaporized in the resulting fireball is exposed to neutrons from the explosion, absorbs them, and becomes radioactive. When this material condenses in the rain, it forms dust and light sandy materials that resemble ground pumice. The fallout emits alpha and beta particles, as well as gamma rays. Much of this highly radioactive material falls to Earth, subjecting anything within the line of sight to radiation, becoming a significant hazard. A fallout shelter is designed to allow its occupants to minimize exposure to harmful fallout until radioactivity has decayed to a safer level. History North America During the Cold War, many countries built fallout shelters for high-ranking government officials an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cold War
The Cold War is a term commonly used to refer to a period of Geopolitics, geopolitical tension between the United States and the Soviet Union and their respective allies, the Western Bloc and the Eastern Bloc. The term ''Cold war (term), cold war'' is used because there was no large-scale fighting directly between the two superpowers, but they each supported major regional conflicts known as proxy wars. The conflict was based around the ideological and geopolitical struggle for global influence by these two superpowers, following their temporary Allies of World War II, alliance and victory against Nazi Germany and Empire of Japan, Imperial Japan in 1945. Aside from the Nuclear arms race, nuclear arsenal development and conventional military deployment, the struggle for dominance was expressed via indirect means such as psychological warfare, propaganda campaigns, Cold War espionage, espionage, far-reaching Economic sanctions, embargoes, rivalry at sports events, and technolog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commercial Cave
A show cave—also called tourist cave, public cave, and, in the United States, commercial cave—is a cave which has been made accessible to the public for guided visits. Definition A show cave is a cave that has been made accessible to the public for guided visits, where a cave is defined as a natural occurring void beneath the surface of the earth, per the International Show Caves Association. A show cave may be managed by a government or commercial organization and made accessible to the general public, usually for an entrance fee. Unlike wild caves, they may possess regular opening hours, guided group tours, constructed trails and stairs, color artificial illumination and other lighting, musical/video/laser shows and concerts, elevators, small trains, and boats if they contain underground water features. Some caves (mainly in Asia) open to the public have temples, monasteries and religious statues or monuments. Some caves are visited by millions of tourists annually ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Potassium Nitrate
Potassium nitrate is a chemical compound with the chemical formula . This alkali metal nitrate salt is also known as Indian saltpetre (large deposits of which were historically mined in India). It is an ionic salt of potassium ions K+ and nitrate ions NO3−, and is therefore an alkali metal nitrate. It occurs in nature as a mineral, niter (or ''nitre'' in the UK). It is a source of nitrogen, and nitrogen was named after niter. Potassium nitrate is one of several nitrogen-containing compounds collectively referred to as saltpeter (or ''saltpetre'' in the UK). Major uses of potassium nitrate are in fertilizers, tree stump removal, rocket propellants and fireworks. It is one of the major constituents of gunpowder (black powder). In processed meats, potassium nitrate reacts with hemoglobin and myoglobin generating a red color. Etymology Potassium nitrate, because of its early and global use and production, has many names. Hebrew and Egyptian words for it had the consonan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brachiopod
Brachiopods (), phylum Brachiopoda, are a phylum of trochozoan animals that have hard "valves" (shells) on the upper and lower surfaces, unlike the left and right arrangement in bivalve molluscs. Brachiopod valves are hinged at the rear end, while the front can be opened for feeding or closed for protection. Two major categories are traditionally recognized, articulate and inarticulate brachiopods. The word "articulate" is used to describe the tooth-and-groove structures of the valve-hinge which is present in the articulate group, and absent from the inarticulate group. This is the leading diagnostic skeletal feature, by which the two main groups can be readily distinguished as fossils. Articulate brachiopods have toothed hinges and simple, vertically-oriented opening and closing muscles. Conversely, inarticulate brachiopods have weak, untoothed hinges and a more complex system of vertical and oblique (diagonal) muscles used to keep the two valves aligned. In many brachiopods, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trilobite
Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the Atdabanian stage of the Early Cambrian period () and they flourished throughout the lower Paleozoic before slipping into a long decline, when, during the Devonian, all trilobite orders except the Proetida died out. The last extant trilobites finally disappeared in the mass extinction at the end of the Permian about 252 million years ago. Trilobites were among the most successful of all early animals, existing in oceans for almost 270 million years, with over 22,000 species having been described. By the time trilobites first appeared in the fossil record, they were already highly diversified and geographically dispersed. Because trilobites had wide diversity and an easily fossilized exoskeleton, they left an extensive fossil record. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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