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Contact
Contact may refer to: Interaction Physical interaction * Contact (geology), a common geological feature * Contact lens or contact, a lens placed on the eye * Contact sport, a sport in which players make contact with other players or objects * Contact juggling * Contact mechanics, the study of solid objects that deform when touching each other * Contact process (mathematics), a model of an interacting particle system * Electrical contacts * ''Sparśa'', a concept in Buddhism that in Sanskrit/Indian language is translated as "contact", "touching", "sensation", "sense impression", etc. Social interaction * Contact (amateur radio) * Contact (law), a concept related to visitation rights * Contact (social), a person who can offer help in achieving goals * Contact Conference, an annual scientific conference * Extraterrestrial contact, see Search for extraterrestrial intelligence * First contact (anthropology), an initial meeting of two cultures * Language contact, the interact ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Lens
Contact lenses, or simply contacts, are thin lenses placed directly on the surface of the eyes. Contact lenses are ocular prosthetic devices used by over 150 million people worldwide, and they can be worn to correct vision or for cosmetic or therapeutic reasons. In 2010, the worldwide market for contact lenses was estimated at $6.1 billion, while the US soft lens market was estimated at $2.1 billion.Nichols, Jason J., et a"ANNUAL REPORT: Contact Lenses 2010" January 2011. Multiple analysts estimated that the global market for contact lenses would reach $11.7 billion by 2015. , the average age of contact lens wearers globally was 31 years old, and two-thirds of wearers were female.Morgan, Philip B., et al"International Contact Lens Prescribing in 2010" ''Contact Lens Spectrum''. October 2011. People choose to wear contact lenses for many reasons. Aesthetics and cosmetics are main motivating factors for people who want to avoid wearing glasses or to change the appearance or c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Mechanics
Contact mechanics is the study of the deformation of solids that touch each other at one or more points.Johnson, K. L, 1985, Contact mechanics, Cambridge University Press.Popov, Valentin L., 2010, ''Contact Mechanics and Friction. Physical Principles and Applications'', Springer-Verlag, 362 p., . A central distinction in contact mechanics is between stresses acting perpendicular to the contacting bodies' surfaces (known as normal stress) and frictional stresses acting tangentially between the surfaces (shear stress). Normal contact mechanics or frictionless contact mechanics focuses on normal stresses caused by applied normal forces and by the adhesion present on surfaces in close contact, even if they are clean and dry. ''Frictional contact mechanics'' emphasizes the effect of friction forces. Contact mechanics is part of mechanical engineering. The physical and mathematical formulation of the subject is built upon the mechanics of materials and continuum mechanics and fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Electrical Contacts
An electrical contact is an electrical circuit component found in electrical switches, relays, connectors and circuit breakers. Each contact is a piece of electrically conductive material, typically metal. When a pair of contacts touch, they can pass an electrical current with a certain contact resistance, dependent on surface structure, surface chemistry and contact time; when the pair is separated by an insulating gap, then the pair does not pass a current. When the contacts touch, the switch is ''closed''; when the contacts are separated, the switch is ''open''. The gap must be an insulating medium, such as air, vacuum, oil, SF6. Contacts may be operated by humans in push-buttons and switches, by mechanical pressure in sensors or machine cams, and electromechanically in relays. The surfaces where contacts touch are usually composed of metals such as silver or gold alloysMatsushita Electronics, "Relay Techninal Information: Definition of Relay Terminology", § Contact, http ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Sport
Contact sports are sports that emphasize or require physical contact between players. Some sports, such as mixed martial arts, are scored on impacting an opponent, while others, including rugby football, gridiron football and Australian rules football, require tackling of players. These sports are often known as full-contact, as the sport cannot be undertaken without contact. Some sports, such as baseball and kho-kho, only allow physical contact in the form of tagging (lightly touching) opponents. Some contact sports have non-contact variations (such as flag football for American football) which replace tackling and other forms of contact with alternative methods of interacting with an opponent, such as removing a flag from a belt worn by the opponent. Other sports may have contact, but such events are illegal under the rules of the game and are incidental or accidental and do not form part of the sport. It can also include impact via a piece of sporting equipment, such as bein ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact (1997 American Film)
''Contact'' is a 1997 American science fiction drama film directed by Robert Zemeckis, based on the 1985 novel by Carl Sagan. Sagan and his wife Ann Druyan wrote the story outline for the film. It stars Jodie Foster as Dr. Eleanor "Ellie" Arroway, a SETI scientist who finds evidence of extraterrestrial life and is chosen to make first contact. It also stars Matthew McConaughey, James Woods, Tom Skerritt, William Fichtner, John Hurt, Angela Bassett, Rob Lowe, Jake Busey, and David Morse. It features the Very Large Array in New Mexico, the Arecibo Observatory in Puerto Rico, the ''Mir'' space station, and the Space Coast surrounding Cape Canaveral. Sagan and Druyan began working on ''Contact'' in 1979. They wrote a film treatment over 100 pages long and set up the project at Warner Bros. with Peter Guber and Lynda Obst as producers. When development stalled, Sagan published ''Contact'' as a novel in 1985, and the film reentered development in 1989. Roland Joffé and George ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
First Contact (anthropology)
In anthropology, first contact is the first meeting of two communities previously without contact with one another. Notable examples of first contact are those between the Spanish Empire and the Arawak in 1492; and the Aboriginal Australians with Europeans in 1788 when the First Fleet arrived in Sydney. Such contact is sometimes described as a "discovery", such as the British and United States did by creating the legal theory of the "Doctrine of Discovery". It is generally the more technologically complex society that is able to travel to new geographic regions to make contact with those more isolated, less technologically complex societies. However, some object to the application of such a word to human beings, which is why "first contact" is generally preferred. The use of the term "discovery" tends to occur more in reference to geography than cultures; for an example of a common discovery debate, see Discoverer of the Americas. The fascination with first contact has gone thr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact (video Game)
is a role-playing video game developed by Grasshopper Manufacture for the Nintendo DS handheld game console. It was published by Marvelous Entertainment in Japan on March 30, 2006, by Atlus USA in North America on October 19, 2006, and by Rising Star Games in Australia, Asia and Europe on January 25, 2007 and February 2, 2007 respectively. Plot The story begins as a scientist, known as the Professor, flees through space from a mysterious enemy known only as the "CosmoNOTs" (Cosmic Nihilist Organization for Terror). He crash lands on a strange planet, losing the "cells" that power his ship. Without power, he is stranded. He enlists the help of Terry, a young boy. Terry agrees to help the Professor by exploring the planet and locating the cells. Helping the Professor is the only way that Terry will be able to get home, but the Klaxon Army are tracking them down, the cells are hidden in some dangerous areas and, as the game progresses, the Professor's intentions are slowly thrown deep ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact (geology)
A geological contact is a boundary which separates one rock body from another. A contact can be formed during deposition, by the intrusion of magma, or through faulting or other deformation of rock beds that brings distinct rock bodies into contact. The geologic subdiscipline of stratigraphy is primarily concerned with depositional contacts,Boggs 2006, p. 401 while faults and shear zones are of particular interest in structural geology. Faults and shear zones can be regarded as a form of secondary structure in the rock beds.Davis and Kluth 2011, p.21 Types of contacts Depositional Conformable Conformable contacts represent no time gap in the geologic record. They are usually planar, though they may have slightly irregular topography. These contacts represent continual, uninterrupted deposition and accumulation of sedimentary rocks, or represent lava flows. A conformable contact can be ''abrupt'', where the contact separates beds of distinct lithology. Abrupt contacts coi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact Juggling
Contact juggling is a form of object manipulation that focuses on the movement of objects such as balls in contact with the body. Although often used in conjunction with "toss juggling", it differs in that it involves the rolling of one or more objects without releasing them into the air. History Many of the techniques found in contact juggling, such as balancing or rolling a single ball or palm spinning (see " Baoding Balls"), have been performed for centuries. More variations were introduced by vaudevillians such as Paul Cinquevalli. In 1986, American juggler Tony Duncan was reported to be holding audiences spellbound with an act that involved rolling a single ball all over his body. Michael Moschen brought the form to a new level with his performance, "Light", developed in the 1980s. In this performance he used 75mm clear crystal balls, palm spinning up to eight balls simultaneously. He finished the act by rolling a single clear ball so that it appeared to float over his ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sparśa
Sparśa (Sanskrit; Pali: ''phassa'') is a Sanskrit/Indian term that is translated as "contact", "touching", "sensation", "sense impression", etc. It is defined as the coming together of three factors: the sense organ, the sense object, and sense consciousness (vijnana).Guenther (1975), Kindle Locations 401-405.Kunsang (2004), p. 23. For example, contact (''sparsha'') is said to occur at the coming together of the eye organ, a visual object, and the visual sense consciousness. Sparśa is identified within the Buddhist teachings as: * One of the ''seven universal mental factors'' in the Theravada Abhidharma. * One of the ''five universal mental factors'' in the Mahayana Abhidharma * The sixth link in the twelve links of dependent origination Explanation Theravada The Atthasālinī (Expositor, Part IV, Chapter I, 108) states: : Contact means “it touches”. It has touching as its salient characteristic, impact as its function, “coinciding” (of the physical base, object ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Contact (law)
In family law, contact, visitation and access are synonym terms that denotes the time that a child spends with the noncustodial parent, according to an agreed or court specified parenting schedule.Cambridge DictionaryVisitation/ref> The visitation term is not used in a shared parenting arrangement where the mother and father have joint physical custody.Jennifer Wolf, Types of custody and visitation, Very Well Family, January 27, 2019. Unsupervised visitation is the most common type, when the parent may take the child to his or her home or enjoy any outing with the child. In supervised visitation, another adult must be present, and there is sometimes a court order to occur at a predetermined supervised child contact centre. Virtual visitation uses video-conferencing technology to allow contact when a child lives far away from the parent. Concept In most jurisdictions the nature of a couple's relationship is established when a child is born to that relationship. In law, there ma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Language Contact
Language contact occurs when speakers of two or more languages or varieties interact and influence each other. The study of language contact is called contact linguistics. When speakers of different languages interact closely, it is typical for their languages to influence each other. Language contact can occur at language borders, between adstratum languages, or as the result of migration, with an intrusive language acting as either a superstratum or a substratum. Language contact occurs in a variety of phenomena, including language convergence, borrowing and relexification. The common products include pidgins, creoles, code-switching, and mixed languages. In many other cases, contact between speakers occurs but the lasting effects on the language are less visible; they may, however, include loan words, calques or other types of borrowed material. Multilingualism has likely been common throughout much of human history, and today most people in the world are multilingual. Meth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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