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Seesaw
A seesaw (also known as a teeter-totter or teeterboard) is a long, narrow board supported by a single pivot point, most commonly located at the midpoint between both ends; as one end goes up, the other goes down. These are most commonly found at parks and school playgrounds. Mechanics Mechanically, a seesaw is a lever which consists of a beam and fulcrum with the effort and load on either sides. Varieties The most common playground design of seesaw features a board balanced in the center. A person sits on each end, and they take turns pushing their feet against the ground to lift their side into the air. Playground seesaws usually have handles for the riders to grip as they sit facing each other. One problem with the seesaw's design is that if a child allows himself/herself to hit the ground suddenly after jumping, or exits the seesaw at the bottom, the other child may fall and be injured. For this reason, seesaws are often mounted above a soft surface such as foam, wood chi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teetertotter
A seesaw (also known as a teeter-totter or teeterboard) is a long, narrow board supported by a single pivot point, most commonly located at the midpoint between both ends; as one end goes up, the other goes down. These are most commonly found at parks and school playgrounds. Mechanics Mechanically, a seesaw is a lever which consists of a beam and fulcrum with the effort and load on either sides. Varieties The most common playground design of seesaw features a board balanced in the center. A person sits on each end, and they take turns pushing their feet against the ground to lift their side into the air. Playground seesaws usually have handles for the riders to grip as they sit facing each other. One problem with the seesaw's design is that if a child allows himself/herself to hit the ground suddenly after jumping, or exits the seesaw at the bottom, the other child may fall and be injured. For this reason, seesaws are often mounted above a soft surface such as foam, wood chi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seesaw Hokkaido-2016-8-15
A seesaw (also known as a teeter-totter or teeterboard) is a long, narrow board supported by a single pivot point, most commonly located at the midpoint between both ends; as one end goes up, the other goes down. These are most commonly found at parks and school playgrounds. Mechanics Mechanically, a seesaw is a lever which consists of a beam and fulcrum with the effort and load on either sides. Varieties The most common playground design of seesaw features a board balanced in the center. A person sits on each end, and they take turns pushing their feet against the ground to lift their side into the air. Playground seesaws usually have handles for the riders to grip as they sit facing each other. One problem with the seesaw's design is that if a child allows himself/herself to hit the ground suddenly after jumping, or exits the seesaw at the bottom, the other child may fall and be injured. For this reason, seesaws are often mounted above a soft surface such as foam, wood chi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Playground Equipment
A playground, playpark, or play area is a place designed to provide an environment for children that facilitates play, typically outdoors. While a playground is usually designed for children, some are designed for other age groups, or people with disabilities. A playground might exclude children below (or above) a certain age. Modern playgrounds often have recreational equipment such as the seesaw, merry-go-round, swingset, slide, jungle gym, chin-up bars, sandbox, spring rider, trapeze rings, playhouses, and mazes, many of which help children develop physical coordination, strength, and flexibility, as well as providing recreation and enjoyment and supporting social and emotional development. Common in modern playgrounds are ''play structures'' that link many different pieces of equipment. Playgrounds often also have facilities for playing informal games of adult sports, such as a baseball diamond, a skating arena, a basketball court, or a tether ball. Public playground ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Playground
A playground, playpark, or play area is a place designed to provide an environment for children that facilitates play, typically outdoors. While a playground is usually designed for children, some are designed for other age groups, or people with disabilities. A playground might exclude children below (or above) a certain age. Modern playgrounds often have recreational equipment such as the seesaw, merry-go-round, swingset, slide, jungle gym, chin-up bars, sandbox, spring rider, trapeze rings, playhouses, and mazes, many of which help children develop physical coordination, strength, and flexibility, as well as providing recreation and enjoyment and supporting social and emotional development. Common in modern playgrounds are ''play structures'' that link many different pieces of equipment. Playgrounds often also have facilities for playing informal games of adult sports, such as a baseball diamond, a skating arena, a basketball court, or a tether ball. Public p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Teeterboard
The teeterboard or Korean plank is an acrobatic apparatus that resembles a playground seesaw. The strongest teeterboards are made of oak (usually 9 feet in length). The board is divided in the middle by a fulcrum made of welded steel. At each end of the board is a square padded area, where a performer stands on an incline before being catapulted into the air. The well-trained flyer performs various aerial somersaults, landing on padded mats, a human pyramid, a specialized landing chair, stilts, or even a Russian bar. The teeterboard is operated by a team of flyers, catchers, spotters and pushers. Some members of the team perform more than one acrobatic role. In the early 1960s the finest teeterboard acts, trained in the Eastern Bloc countries, performed with Ringling Brothers and Barnum & Bailey Circus. Korean-style teeterboard called Neolttwigi is a form of teeterboard where two performers jump vertically in place, landing back on the apparatus instead of dismounting onto a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lever
A lever is a simple machine consisting of a beam or rigid rod pivoted at a fixed hinge, or '' fulcrum''. A lever is a rigid body capable of rotating on a point on itself. On the basis of the locations of fulcrum, load and effort, the lever is divided into three types. Also, leverage is mechanical advantage gained in a system. It is one of the six simple machines identified by Renaissance scientists. A lever amplifies an input force to provide a greater output force, which is said to provide leverage. The ratio of the output force to the input force is the mechanical advantage of the lever. As such, the lever is a mechanical advantage device, trading off force against movement. Etymology The word "lever" entered English around 1300 from Old French, in which the word was ''levier''. This sprang from the stem of the verb ''lever'', meaning "to raise". The verb, in turn, goes back to the Latin ''levare'', itself from the adjective ''levis'', meaning "light" (as in "not heavy") ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neolttwigi
Neolttwigi or nol-ttwigi ( ko, 널뛰기) is a traditional outdoor game of Korean women and girls that is typically enjoyed on traditional holidays such as Korean New Year, Chuseok, and Dano. Neolttwigi is similar to seesaw, except that participants stand on each end of the ''Neol'' (board) and jump, propelling the person opposite into the air. When performed as a spectacle, acrobatic Acrobatics () is the performance of human feats of balance, agility, and motor coordination. Acrobatic skills are used in performing arts, sporting events, and martial arts. Extensive use of acrobatic skills are most often performed in acro ... tricks such as flips or skipping rope while in the air are often included. It is thought that Yangban women developed ''Neolttwigi'' to see over the walls that surrounded their homes, as women in traditional Korea were rarely allowed out of their living compounds, except at night. According to the legend, a wife who wants to see a husband trappe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gaviotas
Gaviotas is an ecovillage located in the Llanos of the Colombian department of Vichada. It was founded in 1971 by Paolo Lugari who assembled a group of engineers and scientists in an attempt to create a mode of sustainable living in one of the least hospitable political and geographical climates in South America. History Gaviotas' pragmatic approach to its survival disassociates the village from many philosophies and political ideologies. Originally, the project received funding from the United Nations and similar groups seeking environmentally friendly solutions to population growth and Third World development. When these original donors began to pull funding from Gaviotas in the 1990s, the villagers looked elsewhere for their income. They realized that the impressive pine forest was a sustainable source of pine resin used in the production of a wide variety of products like turpentine and violins. Their terraformation of the llanos allows Gaviotas to thrive, but it is no ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michael Drout
Michael D. C. Drout (; born 1968) is an American Professor of English and Director of the Center for the Study of the Medieval at Wheaton College. He is an author and editor specializing in Anglo-Saxon and medieval literature, science fiction and fantasy, especially the works of J. R. R. Tolkien and Ursula K. Le Guin. Career Drout holds a Ph.D. in English from Loyola University Chicago (May 1997), an M.A. in English from the University of Missouri (May 1993), an M.A. in Communication from Stanford University (May 1991), and a B.A. in Professional and Creative Writing from Carnegie Mellon University. He is best known for his studies of Tolkien's scholarly work on ''Beowulf'' and the precursors and textual evolution of the essay '' Beowulf: the Monsters and the Critics'', published as '' Beowulf and the Critics by J. R. R. Tolkien'' (2002), which won the Mythopoeic Award for Scholarship in Inklings Studies, 2003. He is the editor of the '' J.R.R. Tolkien Encyclopedia: Scholarship ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reduplication
In linguistics, reduplication is a morphological process in which the root or stem of a word (or part of it) or even the whole word is repeated exactly or with a slight change. The classic observation on the semantics of reduplication is Edward Sapir's: "generally employed, with self-evident symbolism, to indicate such concepts as distribution, plurality, repetition, customary activity, increase of size, added intensity, continuance." Reduplication is used in inflections to convey a grammatical function, such as plurality, intensification, etc., and in lexical derivation to create new words. It is often used when a speaker adopts a tone more "expressive" or figurative than ordinary speech and is also often, but not exclusively, iconic in meaning. Reduplication is found in a wide range of languages and language groups, though its level of linguistic productivity varies. Reduplication is found in a wide variety of languages, as exemplified below. Examples of it can be found ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New England
New England is a region comprising six states in the Northeastern United States: Connecticut, Maine, Massachusetts, New Hampshire, Rhode Island, and Vermont. It is bordered by the state of New York to the west and by the Canadian provinces of New Brunswick to the northeast and Quebec to the north. The Atlantic Ocean is to the east and southeast, and Long Island Sound is to the southwest. Boston is New England's largest city, as well as the capital of Massachusetts. Greater Boston is the largest metropolitan area, with nearly a third of New England's population; this area includes Worcester, Massachusetts (the second-largest city in New England), Manchester, New Hampshire (the largest city in New Hampshire), and Providence, Rhode Island (the capital of and largest city in Rhode Island). In 1620, the Pilgrims, Puritan Separatists from England, established Plymouth Colony, the second successful English settlement in America, following the Jamestown Settlement in Virgini ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Recorded Books, LLC
Recorded Books is an audiobook imprint of RBMedia, a publishing company with operations in countries globally. Recorded Books was formerly an independent audiobook company before being purchased and re-organized under RBMedia, where it is now an imprint. Recorded Books was founded in 1978 by Henry Trentman, one of the pioneers in the audiobook industry. History Recorded Books was founded in 1978 by Henry Trentman in Charlotte Hall, Maryland. Trentman was a salesman who spent a lot of his time driving and listening to the radio and he believed there was a market for better quality recorded books on cassette tape targeted to commuters. Unlike other audiobooks sold at the time, which were usually abridged to 2–4 hours long, Trentman envisioned unabridged productions of 20 or more tapes which could be rented mail-order, and that would be of high quality sound and professional narrators. The company's first recording was in 1979 as ''The Sea-Wolf'' by Jack London narrated by Frank ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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