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Inverted Bell
The inverted bell is a metaphorical name for a geometric shape that resembles a bell upside-down. By context In architecture, the term is applied to describe the shape of the capitals of Corinthian columns. The inverted bell is used in shape classification in pottery,"Modern Fishing Lure Collectibles: Identification & Value Guide" (2002), {{ISBN, 1-57432-277-X often featured in archaeology as well as in modern times. In statistics, a bimodial distribution is sometimes called an inverted bell curve. Image:ZygmuntDzwon.JPG, A bell File:Rin gong at Kiyomizu-dera, Kyoto.JPG , Standing bell (''rin'') Image:Llyn Celyn spillway1 w.JPG, Bell-mouth spillway at Llyn Celyn image:GBM - Glockenbecher 1.jpg, Inverted-bell beaker from Atting during the Beaker culture Image:Vorticella.JPG, Vorticella protozoa Protozoa (: protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on orga ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metaphor
A metaphor is a figure of speech that, for rhetorical effect, directly refers to one thing by mentioning another. It may provide, or obscure, clarity or identify hidden similarities between two different ideas. Metaphors are usually meant to create a likeness or an Analogy, analogy. Analysts group metaphors with other types of figurative language, such as antithesis, hyperbole, metonymy, and simile. According to Grammarly, "Figurative language examples include similes, metaphors, personification, hyperbole, allusions, and idioms." One of the most commonly cited examples of a metaphor in English literature comes from the "All the world's a stage" monologue from ''As You Like It'': All the world's a stage, And all the men and women merely players; They have their exits and their entrances And one man in his time plays many parts, His Acts being seven ages. At first, the infant... :—William Shakespeare, ''As You Like It'', 2/7 This quotation expresses a metaphor because the w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Standing Bell
A standing bell or resting bell is an inverted bell, supported from below with the rim uppermost. Such bells are normally bowl-shaped, and exist in a wide range of sizes, from a few centimetres to a metre in diameter. They are often played by striking, but some—known as singing bowls—may also be played by rotating a suede covered mallet around the outside rim to produce a sustained musical note. Struck bowls are used in some Buddhist religious practices to accompany periods of meditation and chanting. Struck and singing bowls are widely used for music making, meditation and relaxation, as well for personal spirituality. They have become popular with music therapists, sound healers and yoga practitioners. Standing bells originated in China. An early form called took the shape of a stemmed goblet, mounted with rim uppermost, and struck on the outside with a mallet. The manufacture and use of bowls specifically for 'singing' is believed to be a modern phenomenon. Bowls that w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bell Krater
A krater or crater (, ; , ) was a large two-handled type of vase in Ancient Greek pottery and metalwork, mostly used for the mixing of wine with water. Form and function At a Greek symposium, kraters were placed in the center of the room. They were quite large, so they were not easily portable when filled. Thus, the wine-water mixture would be withdrawn from the krater with other vessels, such as a (: ), an amphora (: ), or a (: ). In fact, Homer's ''Odyssey'' describes a steward drawing wine from a krater at a banquet and then running to and fro pouring the wine into guests' drinking cups. The modern Greek word now used for undiluted wine, (), originates from the (, ) of wine and water in kraters. Pottery kraters were glazed on the interior to make the surface of the clay more impervious for holding water, and possibly for aesthetic reasons, since the interior could easily be seen. The exterior of kraters often depicted scenes from Greek life, such as the Attic Late 1 Kr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Protozoa
Protozoa (: protozoan or protozoon; alternative plural: protozoans) are a polyphyletic group of single-celled eukaryotes, either free-living or parasitic, that feed on organic matter such as other microorganisms or organic debris. Historically, protozoans were regarded as "one-celled animals". When first introduced by Georg Goldfuss, in 1818, the taxon Protozoa was erected as a class within the Animalia, with the word 'protozoa' meaning "first animals", because they often possess animal-like behaviours, such as motility and predation, and lack a cell wall, as found in plants and many algae. This classification remained widespread in the 19th and early 20th century, and even became elevated to a variety of higher ranks, including phylum, subkingdom, kingdom, and then sometimes included within the paraphyletic Protoctista or Protista. By the 1970s, it became usual to require that all taxa be monophyletic (derived from a common ancestor that would also be regarded as protozo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vorticella
''Vorticella'' is a genus of bell-shaped ciliates that have stalks to attach themselves to substrates. The stalks have contractile myonemes, allowing them to pull the cell body against substrates. The formation of the stalk happens after the free-swimming stage. Etymology The organism is named ''Vorticella'' due to the beating cilia creating whirlpools, or vortices. It is also known as the “Bell Animalcule” due to its bell-shaped body. History ''Vorticella'' was first described by Antonie van Leeuwenhoek in a letter dated October 9, 1676. Leeuwenhoek thought that ''Vorticella'' had two horns moving like horse ears near the oral part, which turned out to be oral cilia beating to create water flow. In 1755, German miniature painter August Johann Rösel described ''Vorticella'', which was named ''Hydra convallaria'' by Linnaeus in 1758. However, in 1767, it was renamed ''Vorticella convallaria''. Otto Friedrich Müller listed 127 species of ''Vorticella'' in 1786, but many ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaker Culture
The Bell Beaker culture, also known as the Bell Beaker complex or Bell Beaker phenomenon, is an archaeological culture named after the inverted-bell Beaker (archaeology), beaker drinking vessel used at the beginning of the European Bronze Age, arising from around 2800 BC. The term's English translation ''Bell Beaker'' was introduced by John Abercromby, 5th Baron Abercromby, John Abercromby in 1904.''The Concise Oxford Dictionary of Archaeology'' Bell Beaker culture lasted in Bronze Age Britain, Britain from BC, with the appearance of single burial graves,Armit, Ian, and David Reich, (2022)"What do we know about the Beaker Folk" in: Antiquity Journal, Youtube, min: 1:11: "So, the Beaker Complex in terms of Great Britain and Ireland is from ... around 2450 BC, when we see in Britain the appearance of single inhumation graves ...." until as late as 1800 BC, but in continental Europe only until 2300 BC, when it was succeeded by the Únětice culture. The culture was wide ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beaker (archaeology)
In archaeology, a beaker is a small round ceramic or metal cup, a drinking vessel shaped to be held in the hands. It has no handle or spout, and generally no spreading foot (base). Term Archaeologists identify several different types including the inverted-bell beaker, the butt beaker, the claw beaker, and the rough-cast beaker. When used alone “beaker” usually refers to the typical form of pottery cups called ''inverted-bell beakers'' associated with the European Bell Beaker culture of the late Neolithic and early Bronze Age. Bell beakers The '' inverted-bell beaker'' or ''bell-beaker'' was first defined as a find-type by Lord Abercromby in the early twentieth century and comes in three distinct forms, the (typical) bell beaker, and the rarer short-necked beaker, and long-necked beaker. There are many variations on these basic types, with inter-grades between them. Bell-beakers have been found from North Africa to southern Scotland and from Portugal to the far east o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Llyn Celyn
Llyn Celyn () is a reservoir constructed between 1960 and 1965 including the highly controversial Tryweryn flooding in the valley of the River Afon Tryweryn, Tryweryn in Gwynedd, Wales. This included the forcible removal of the Capel Celyn village residents despite protest and opposition of Welsh MPs. With an area of , it measures roughly long by wide, and has a maximum depth of . It has the capacity to hold of water. It was originally to be named ''Llyn Tryweryn Mawr'' (meaning "great Tryweryn lake"), but in September 1964 Liverpool Corporation agreed to the name change following a letter from the Tryweryn Defence Committee. Construction and opposition Construction of the reservoir for Liverpool Corporation Waterworks involved flooding the village of Capel Celyn and adjacent farmland, a deeply controversial move. Much of the opposition was brought about because the village was a stronghold of Culture of Wales, Welsh culture and the Welsh language, whilst the reservoir w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spillway
A spillway is a structure used to provide the controlled release of water downstream from a dam or levee, typically into the riverbed of the dammed river itself. In the United Kingdom, they may be known as overflow channels. Spillways ensure that water does not damage parts of the structure not designed to convey water. Spillways can include floodgates and fuse plugs to regulate water flow and reservoir level. Such features enable a spillway to regulate downstream flow—by releasing water in a controlled manner before the reservoir is full, operators can prevent an unacceptably large release later. Other uses of the term "spillway" include bypasses of dams and outlets of channels used during high water, and outlet channels carved through natural dams such as moraines. Water normally flows over a spillway only during flood periods, when the reservoir has reached its capacity and water continues entering faster than it can be released. In contrast, an intake tower is a structure ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Inverted Bell Curve
In statistics, an inverted bell curve is a term used loosely or metaphorically to refer to a bimodal distribution that falls to a trough between two peaks, rather than (as in a standard bell curve In probability theory and statistics, a normal distribution or Gaussian distribution is a type of continuous probability distribution for a real-valued random variable. The general form of its probability density function is f(x) = \frac e^\ ...) rising to a single peak and then falling off on both sides.E.g., see . References {{stats-stub Continuous distributions Gaussian function ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Geometric Shape
A shape is a graphical representation of an object's form or its external boundary, outline, or external surface. It is distinct from other object properties, such as color, texture, or material type. In geometry, ''shape'' excludes information about the object's position, size, orientation and chirality. A ''figure'' is a representation including both shape and size (as in, e.g., figure of the Earth). A plane shape or plane figure is constrained to lie on a '' plane'', in contrast to ''solid'' 3D shapes. A two-dimensional shape or two-dimensional figure (also: 2D shape or 2D figure) may lie on a more general curved '' surface'' (a two-dimensional space). Classification of simple shapes Some simple shapes can be put into broad categories. For instance, polygons are classified according to their number of edges as triangles, quadrilaterals, pentagons, etc. Each of these is divided into smaller categories; triangles can be equilateral, isosceles, obtuse, acute, scal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Multimodal Distribution
In statistics, a multimodal distribution is a probability distribution with more than one mode (i.e., more than one local peak of the distribution). These appear as distinct peaks (local maxima) in the probability density function, as shown in Figures 1 and 2. Categorical, continuous, and discrete data can all form multimodal distributions. Among univariate analyses, multimodal distributions are commonly bimodal. Terminology When the two modes are unequal the larger mode is known as the major mode and the other as the minor mode. The least frequent value between the modes is known as the antimode. The difference between the major and minor modes is known as the amplitude. In time series the major mode is called the acrophase and the antimode the batiphase. Galtung's classification Galtung introduced a classification system (AJUS) for distributions: *A: unimodal distribution – peak in the middle *J: unimodal – peak at either end *U: bimodal – peaks at both ends ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
