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Fajã Da Choupana
(, of unknown etymology) is a Portuguese term of obscure origin used to describe supratidal talus at the foot of coastal cliffs, caused by landslides or lava flows.G. Lameiras et al. (2009), p.827 Although relatively common world-wide, they are distinctive features of the Azores and Madeira, as well as of the Canary Islands, where the equivalent term in Canarian Spanish is (). The term also designates a small flat piece of land, generally cultivable and located by the sea, formed of materials fallen from cliffs. Another Canarian word for lava is , literally, "low island". Geology Fajãs are created from collapsing cliffs or lava flows and are identifiable along the coast as "flat" surfaces, relative to other geological forms. Tides and tidal currents have only minor influence on coastal morphology, and therefore sedimentation and deposits there became permanent. Composed of fertile soils, these microclimates allow the cultivation of a variety of staple and exotic plants, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Miradouro Da Fajã Do Vimes, Vista Da Fajã, Calheta, Ilha De São Jorge, Açores
Miradouro is a Brazil, Brazilian Municipalities of Brazil, municipality located in the Federative units of Brazil, state of Minas Gerais. The city belongs to the mesoregion of Zona da Mata (Minas Gerais), Zona da Mata and to the microregion of Muriaé. As of 2020, the estimated population was 10,787. See also * List of municipalities in Minas Gerais References Municipalities in Minas Gerais {{MinasGerais-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Archipelago
An archipelago ( ), sometimes called an island group or island chain, is a chain, cluster, or collection of islands. An archipelago may be in an ocean, a sea, or a smaller body of water. Example archipelagos include the Aegean Islands (the origin of the term), the Canadian Arctic Archipelago, the Stockholm Archipelago, the Malay Archipelago (which includes the Indonesian and Philippine Archipelagos), the Lucayan (Bahamian) Archipelago, the Japanese archipelago, and the Hawaiian Archipelago. Etymology The word ''archipelago'' is derived from the Italian ''arcipelago'', used as a proper name for the Aegean Sea, itself perhaps a deformation of the Greek Αιγαίον Πέλαγος. Later, usage shifted to refer to the Aegean Islands (since the sea has a large number of islands). The erudite paretymology, deriving the word from Ancient Greek ἄρχι-(''arkhi-'', "chief") and πέλαγος (''pélagos'', "sea"), proposed by Buondelmonti, can still be found. Geograph ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maize
Maize (; ''Zea mays''), also known as corn in North American English, is a tall stout grass that produces cereal grain. It was domesticated by indigenous peoples in southern Mexico about 9,000 years ago from wild teosinte. Native Americans planted it alongside beans and squashes in the Three Sisters polyculture. The leafy stalk of the plant gives rise to male inflorescences or tassels which produce pollen, and female inflorescences called ears. The ears yield grain, known as kernels or seeds. In modern commercial varieties, these are usually yellow or white; other varieties can be of many colors. Maize relies on humans for its propagation. Since the Columbian exchange, it has become a staple food in many parts of the world, with the total production of maize surpassing that of wheat and rice. Much maize is used for animal feed, whether as grain or as the whole plant, which can either be baled or made into the more palatable silage. Sugar-rich varieties called sw ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yam (vegetable)
Yam is the common name for some plant species in the genus ''Dioscorea'' (family Dioscoreaceae) that form edible tubers (some other species in the genus being toxic). Yams are perennial herbaceous vines native to Africa, Asia, and the Americas and cultivated for the consumption of their starchy tubers in many temperate climate, temperate and tropics, tropical regions. The tubers themselves, also called "yams", come in a variety of forms owing to numerous cultivars and related species. Description A Monocotyledon, monocot related to lilies and grasses, yams are vigorous herbaceous, perennial plant, perennially growing vines from a tuber. Some 870 species of yams are known, a few of which are widely grown for their edible tuber but others of which are toxic (such as ''Dioscorea communis, D. communis''). Yam plants can grow up to in length and high. The tuber may grow into the soil up to deep. The plant disperses by seed. The edible tuber has a rough skin that is diffi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mill (grinding)
A mill is a device, often a structure, machine or kitchen appliance, that breaks solid materials into smaller pieces by grinding, crushing, or cutting. Such comminution is an important unit operation in many processes. There are many different types of mills and many types of materials processed in them. Historically, mills were powered by hand or by animals (e.g., via a hand crank), working animal (e.g., horse mill), wind ( windmill) or water (watermill). In the modern era, they are usually powered by electricity. The grinding of solid materials occurs through mechanical forces that break up the structure by overcoming the interior bonding forces. After the grinding the state of the solid is changed: the grain size, the grain size disposition and the grain shape. Milling also refers to the process of breaking down, separating, sizing, or classifying aggregate material (e.g. mining ore). For instance rock crushing or grinding to produce uniform aggregate size for construc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fajã Do Ouvidor
The Fajã do Ouvidor is a lava field from Pico da Esperança when it was active, and the most recent from the collapsing cliffs on the northern coast of the Freguesia (Portugal), civil parish of Norte Grande (Azores), Norte Grande, in the Concelho, municipality of Velas (Azores), Velas, island of São Jorge Island, São Jorge, in the Portugal, Portuguese archipelago of the Azores. History The fajã received its name due to its association with Valério Lopes de Azevedo, the magistrate/superintendent of the Donatary-Captain at the time, who was one of the principal property-owners. During the 17th century, a whale-watching hut was established on the flanks of the fajã to spot whales transiting the northern coast. Fishermen from Ouvidor and surrounding settlements would then leave their homes to hunt whales: due to the decline of whaling the outpost was abandoned. There is one religious meeting point in the fajã: the Hermitage of Nossa Senhora das Dores, which dates to 1903, an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ecosystem
An ecosystem (or ecological system) is a system formed by Organism, organisms in interaction with their Biophysical environment, environment. The Biotic material, biotic and abiotic components are linked together through nutrient cycles and energy flows. Ecosystems are controlled by external and internal Environmental factor, factors. External factors—including climate—control the ecosystem's structure, but are not influenced by it. By contrast, internal factors control and are controlled by ecosystem processes; these include decomposition, the types of species present, root competition, shading, disturbance, and succession. While external factors generally determine which Resource (biology), resource inputs an ecosystem has, their availability within the ecosystem is controlled by internal factors. Ecosystems are wikt:dynamic, dynamic, subject to periodic disturbances and always in the process of recovering from past disturbances. The tendency of an ecosystem to remain clo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fajã Dos Cubres
The Fajã dos Cubres is a permanent debris field, known as a fajã, built from the collapsing cliffs on the northern coast of the Freguesia (Portugal), civil parish of Ribeira Seca (Calheta), Ribeira Seca, in the municipality of Calheta (Azores), Calheta, island of São Jorge Island, São Jorge, in the Portugal, Portuguese archipelago of the Azores. History The spit (landform), spit received its name from the seaside goldenrod (''Solidago azorica''), a small yellow flowering plant, that is common to the fajã. This species, common along the eastern coast of the United States, spread throughout many of the islands of the archipelago. The size of the fajã has been attributed to the 9 July 1757 earthquake, considered the most violent tectonic quake that occurred in the Azores.Amigos dos Açores (2013), p.16 This seismic event was characterized by violent movements of land (landslides, collapses and rockfalls) that were responsible for the creation of several fajãs on the island, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diffraction
Diffraction is the deviation of waves from straight-line propagation without any change in their energy due to an obstacle or through an aperture. The diffracting object or aperture effectively becomes a secondary source of the Wave propagation, propagating wave. Diffraction is the same physical effect as Wave interference, interference, but interference is typically applied to superposition of a few waves and the term diffraction is used when many waves are superposed. Italian scientist Francesco Maria Grimaldi coined the word ''diffraction'' and was the first to record accurate observations of the phenomenon in 1660 in science, 1660. In classical physics, the diffraction phenomenon is described by the Huygens–Fresnel principle that treats each point in a propagating wavefront as a collection of individual spherical wavelets. The characteristic pattern is most pronounced when a wave from a Coherence (physics), coherent source (such as a laser) encounters a slit/aperture tha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Refraction
In physics, refraction is the redirection of a wave as it passes from one transmission medium, medium to another. The redirection can be caused by the wave's change in speed or by a change in the medium. Refraction of light is the most commonly observed phenomenon, but other waves such as sound waves and Wind wave, water waves also experience refraction. How much a wave is refracted is determined by the change in wave speed and the initial direction of wave propagation relative to the direction of change in speed. Optical Prism (optics), prisms and Lens (optics), lenses use refraction to redirect light, as does the human eye. The refractive index of materials varies with the wavelength of light,R. Paschotta, article ochromatic dispersion in th, accessed on 2014-09-08 and thus the angle of the refraction also varies correspondingly. This is called dispersion (optics), dispersion and causes prism (optics), prisms and rainbows to divide white light into its constituent spectral ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wave Shoaling
In fluid dynamics, wave shoaling is the effect by which ocean surface waves, surface waves, entering shallower water, change in wave height. It is caused by the fact that the group velocity, which is also the wave-energy transport velocity, decreases with water depth. Under stationary conditions, a decrease in transport speed must be compensated by an increase in energy density in order to maintain a constant energy flux. Shoaling waves will also exhibit a reduction in wavelength while the frequency remains constant. In other words, as the waves approach the shore and the water gets shallower, the waves get taller, slow down, and get closer together. In Waves and shallow water, shallow water and parallel depth contours, non-breaking waves will increase in wave height as the wave packet enters shallower water. This is particularly evident for tsunamis as they wax in height when approaching a coastline, with devastating results. Overview Waves nearing the coast experience change ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
