|
Cat Righting Reflex
The cat righting reflex is a cat's innate ability to orientate itself as it falls in order to land on its feet. The righting reflex begins to appear at 3–4 weeks of age, and is perfected at 6–9 weeks. Cats are able to do this because they have an unusually flexible backbone and no functional clavicle (collarbone). The tail seems to help but cats without a tail also have this ability, since a cat mostly turns by moving its legs and twisting its spine in a certain sequence. While cats provide the most famous example of this reflex, they are not the only animal known to have a mid-air righting capability. Similar phenomenons have been observed in other small vertebrates such as [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falling Cat 1894
Falling or fallin' may refer to: * Falling (physics), movement due to gravity *Falling (accident) * Falling (execution) * Falling (sensation) People * Christine Falling (born 1963), American serial killer who murdered six children Books * ''Falling'' (Provoost novel), a 1994 novel by Anne Provoost * ''Falling'' (Howard novel), a 1999 novel by Elizabeth Jane Howard * ''Falling'' (Newman novel), a 2021 novel by T. J. Newman *"Falling", a 1967 poem by James Dickey Film and television * ''Falling'' (2008 film), a film by Richard Dutcher * ''Falling'' (2015 film), starring Adesua Etomi and Blossom Chukwujekwu * ''Falling'' (2020 film), an American-British-Canadian drama film * ''The Falling'' (1987 film), an American film by Deran Sarafian * ''The Falling'' (2014 film), a British film by Carol Morley *''Falling'' (Dutch: ''Vallen''), a 2001 film by Hans Herbots based on the novel by Anne Provoost *''Falling'', a 2005 ITV adaptation of the novel by Elizabeth Jane Howard *"Fallin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
USA Gymnastics
United States of America Gymnastics (USA Gymnastics or USAG) is the national governing body for gymnastics in the United States. It sets the domestic rules and policies that govern the sport, promotes and develops gymnastics on the grassroots and national levels, and serves as a resource center for members, clubs, fans and gymnasts. It selects and trains the U.S. national teams for the Olympic Games and World Championships. Established in 1963 as the U.S. Gymnastics Federation (USGF), it received its current name in 1993. The programs governed by USAG are: * Women's artistic gymnastics (WAG), comprising the events vault, uneven bars, balance beam, and floor exercise * Men's artistic gymnastics (MAG), comprising the events floor exercise, pommel horse, still rings, vault, parallel bars, and horizontal bar * Rhythmic gymnastics * Trampoline & tumbling (T&T) * Acrobatic gymnastics * Aerobic gymnastics (designated as discipline of gymnastics by the international body, th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-rise Syndrome
High-rise syndrome is a veterinary term for injuries sustained by a cat falling from a building, typically higher than two stories (). Injuries sustained by cats falling Common injuries sustained in cats after a fall include: * Broken bones, most often the jawbone as the cat's chin hits the ground; a broken jawbone and damaged or fractured teeth are the typical signs of a cat having sustained injuries in a fall. * Injuries to the legs: joint injury; ruptured tendons; ligament injury; broken legs. * Internal injuries, especially to the lungs Studies done of cats that have fallen from two to 32 stories, and are still alive when brought to a veterinarian clinic, show that the overall survival rate is 90 percent of those treated. In a study performed in 1987 it was reported that cats that survive a fall from less than six stories have greater injuries than cats who fall from higher than six stories. It has been proposed that this might happen because cats reach terminal velocit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falling Cat Problem
The falling cat problem is a problem that consists of explaining the underlying physics behind the observation of the cat righting reflex. Although amusing and trivial to pose, the solution of the problem is not as straightforward as its statement would suggest. The apparent contradiction with the law of conservation of angular momentum is resolved because the cat is not a rigid body, but instead is permitted to change its shape during the fall owing to the cat's flexible vertebral column, backbone and non-functional collar-bone. The behavior of the cat is thus typical of the mechanics of deformable bodies. Several explanations have been proposed for this phenomenon since the late 19th century: * Cats rely on conservation of angular momentum. * The rotation angle of the front body is larger than that of the rear body. * The dynamics of the falling cat have been explained using the Udwadia–Kalaba equation. History The falling cat problem has elicited interest from scien ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Survivorship Bias
Survivorship bias or survival bias is the logical error of concentrating on entities that passed a selection process while overlooking those that did not. This can lead to incorrect conclusions because of incomplete data. Survivorship bias is a form of sampling bias that can lead to overly optimistic beliefs because multiple failures are overlooked, such as when companies that no longer exist are excluded from analyses of financial performance. It can also lead to the false belief that the successes in a group have some special property, rather than just coincidence as in Correlation does not equal causation, correlation "proves" causality. As a general experimental flaw The parapsychology researcher Joseph Banks Rhine believed he had identified the few individuals from hundreds of potential subjects who had powers of extra-sensory perception (ESP). His calculations were based on the improbability of these few subjects guessing the Zener cards shown to a partner by chance. A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drag (physics)
In fluid dynamics, drag, sometimes referred to as fluid resistance, is a force acting opposite to the direction of motion of any object moving with respect to a surrounding fluid. This can exist between two fluid layers, two solid surfaces, or between a fluid and a solid surface. Drag forces tend to decrease fluid velocity relative to the solid object in the fluid's path. Unlike other resistive forces, drag force depends on velocity. Drag force is proportional to the relative velocity for low-speed flow and is proportional to the velocity squared for high-speed flow. This distinction between low and high-speed flow is measured by the Reynolds number. Drag is instantaneously related to vorticity dynamics through the Josephson-Anderson relation. Examples Examples of drag include: * Net force, Net Aerodynamic force, aerodynamic or Fluid dynamics, hydrodynamic force: Drag acting opposite to the direction of movement of a solid object such as cars, aircraft, and boat hulls. * Viscou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Straight Dope
''The Straight Dope'' was a question-and-answer newspaper column written under the pseudonym Cecil Adams. Contributions were made by multiple authors, and it was illustrated (also pseudonymously) by Slug Signorino. It was first published in 1973 in the ''Chicago Reader'' as well as in print syndication nationally in the United States, and on a website with the same name. The final column was printed on June 27, 2018, including a statement that it was only being placed on hiatus, though the column has not returned. Name and tagline The column derives its name from the American idiom meaning roughly "the true information; the full story" and covers many subjects, including history, science, old wives' tales, urban legends, and inventions. The column appeared under the tagline In entertainment, a tagline (alternatively spelled tag line) is a short text which serves to clarify a thought for, or is designed with a form of, dramatic effect. Many tagline slogans are reiterated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal Medical Center Of New York
The Schwarzman Animal Medical Center, formally the Stephen & Christine Schwarzman Animal Medical Center, is a non profit animal hospital in New York City and the largest non-profit animal hospital in the world. History The center began in 1906 when Ellin Prince Speyer founded the "Women's Auxiliary to the American Society for the Prevention of Cruelty to Animals". The first major activity organized was the Work Horse Parade held on Memorial Day in 1907 in New York City. In 1909 the Women's Auxiliary decided to establish a dispensary and out-patient clinic for all animals whose owners could not afford to pay for medical treatment. The clinic opened in 1910 on the Lower East Side of Manhattan. Veterinarians volunteered their services on a part-time basis. The clinic treated 6,028 animals in the first full year. On May 12, 1910, the Women's Auxiliary separated from the Society for the Prevention of Cruelty to Animals and they incorporated themselves as the "New York Women's Lea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Veterinary Medical Association
The American Veterinary Medical Association (AVMA) is an American not-for-profit association founded in 1863 that represents more than 105,000 veterinarians. The AVMA provides information resources, continuing education opportunities, publications, and discounts on personal and professional products, programs, and services. The AVMA indicates that it lobbies for animal friendly legislation within a framework that supports the use of animals for human purposes (e.g., food, fiber, research, companionship). The AVMA Council on Education is the designated accrediting body for schools of veterinary medicine in the United States. The AVMA publishes the ''Journal of the American Veterinary Medical Association'' (JAVMA) and the ''American Journal of Veterinary Research'' (AJVR). The AVMA's veterinary student organization is the Student American Veterinary Medical Association (SAVMA). History The American Veterinary Medical Association (AVMA) was founded in 1863, when 40 delegates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Journal Of Feline Medicine And Surgery
''Journal of Feline Medicine and Surgery'' is a peer-reviewed medical journal that covers the field of veterinary medicine as applied to domestic cats. The editors-in-chief are A. H. Sparkes and M. Scherk, both of the International Society of Feline Medicine. The journal is published by SAGE Publications on behalf of the International Society of Feline Medicine and the American Association of Feline Practitioners. Scope ''Journal of Feline Medicine and Surgery'' is published in two monthly formats. The "classic" editions publish original research papers on aspects of feline medicine and surgery, while the "clinical practice" editions publish commissioned review articles of relevance to feline clinical work, along with other relevant clinical articles such as case reports. Abstracting and indexing ''Journal of Feline Medicine'' is abstracted and indexed in Scopus, MEDLINE, and the Science Citation Index. According to the ''Journal Citation Reports'', its 2010 impact factor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
High-rise Syndrome
High-rise syndrome is a veterinary term for injuries sustained by a cat falling from a building, typically higher than two stories (). Injuries sustained by cats falling Common injuries sustained in cats after a fall include: * Broken bones, most often the jawbone as the cat's chin hits the ground; a broken jawbone and damaged or fractured teeth are the typical signs of a cat having sustained injuries in a fall. * Injuries to the legs: joint injury; ruptured tendons; ligament injury; broken legs. * Internal injuries, especially to the lungs Studies done of cats that have fallen from two to 32 stories, and are still alive when brought to a veterinarian clinic, show that the overall survival rate is 90 percent of those treated. In a study performed in 1987 it was reported that cats that survive a fall from less than six stories have greater injuries than cats who fall from higher than six stories. It has been proposed that this might happen because cats reach terminal velocit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BBC News Online
BBC News Online is the website of BBC News, the division of the BBC responsible for newsgathering and production. It is one of the most popular news websites, with 1.2 billion website visits in April 2021, as well as being used by 60% of the UK's internet users for news. The website contains international news coverage, as well as British, entertainment, science, and political news. Many reports are accompanied by audio and video from the BBC's BBC Television, television and BBC Radio, radio news services, while the latest TV and radio bulletins are also available to view or listen to on the site together with other current affairs programmes. BBC News Online is closely linked to its sister department website, that of BBC Sport. Both sites follow similar layout and content options and respective journalists work alongside each other. Location information provided by users is also shared with the website of BBC Weather to provide local content. From 1998 to 2001 the site was n ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
