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Sprung Floor
A sprung floor is a floor that absorbs shocks, giving it a softer feel. Such floors are considered the best kind for dance and indoor sports and physical education, and can enhance performance and greatly reduce injuries. Modern sprung floors are supported by foam backing or rubber feet, while traditional floors provide their spring through bending woven wooden battens. Sprung floors have been used in dance halls and performance venues since the 19th century, and are also used in gymnastics, cheerleading, and other athletic activities that require a cushioned surface. The construction of sprung floors can vary, but they generally consist of a performance surface layer on top of a sprung sub-floor with shock-absorbing materials. Sprung floors provide benefits such as injury reduction, enhanced performance, and appropriate traction for users. One of the earliest on-record sprung-floor ballrooms is Papanti's for dance lessons in Boston, built in 1837. There was also one in the New Zea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glen Echo Park Contra Dance
A glen is a valley, typically one that is long and bounded by gently sloped concave sides, unlike a ravine, which is deep and bounded by steep slopes. The word is Goidelic in origin: ''gleann'' in Irish and Scottish Gaelic, ''glion'' in Manx. The designation "glen" also occurs often in place names. Glens are appreciated by tourists for their tranquility and scenery. Etymology The word is Goidelic in origin: ''gleann'' in Irish and Scottish Gaelic, ''glion'' in Manx. In Manx, ''glan'' is also to be found meaning glen. It is cognate with Welsh ''glyn''. Whittow defines it as a "Scottish term for a deep valley in the Highlands" that is "narrower than a strath". Examples in Northern England, such as Glenridding, Westmorland, or Glendue, near Haltwhistle, Northumberland, are thought to derive from the aforementioned Cumbric cognate, or another Brythonic equivalent. This likely underlies some examples in Southern Scotland. As the name of a river, it is thought to derive fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Younger Hall
Younger Hall is the venue for graduation ceremonies and other large-scale university and some public events in St Andrews, Scotland. Its main hall seats almost 1000 people and is mainly used for lectures and author talks. History Younger Hall was designed by English architect Paul Waterhouse as the graduation hall for the University of St Andrews, and built in 1923–29. Its design combines aspects of Neo-Classical and Art Deco styles. It was built at a cost of £90,000 and was opened by Elizabeth, the Duchess of York, later Queen Elizabeth The Queen Mother Elizabeth Angela Marguerite Bowes-Lyon (4 August 1900 – 30 March 2002) was Queen of the United Kingdom and the Dominions of the British Commonwealth from 11 December 1936 to 6 February 1952 as the wife of King George VI. She was al .... The hall was the gift of Dr James and Mrs Annie Younger, who lived nearby at Mount Melville. Its foyer is decorated with grey and green marble. The principal hall has t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gym Floor Cover
A tarpaulin ( , ) or tarp is a large sheet of strong, flexible, water-resistant or waterproof material, often cloth such as canvas or polyester coated with polyurethane, or made of plastics such as polyethylene. Tarpaulins often have reinforced grommets at the corners and along the sides to form attachment points for rope, allowing them to be tied down or suspended. Inexpensive modern tarpaulins are made from woven polyethylene; This material has become so commonly used for tarpaulins that people in some places refer to it colloquially as "poly tarp" or "polytarp". Uses Tarpaulins are used in many ways to protect persons and things from wind, rain, and sunlight. They are used during construction or after disasters to protect partially built or damaged structures, to prevent mess during painting and similar activities, and to contain and collect debris. They are used to protect the loads of open trucks and wagons, to keep wood piles dry, and for shelters such as tents or othe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stiletto Heel
A stiletto heel, or just stiletto, is a shoe with a long, thin, high heel. It is named after the stiletto dagger. Stiletto heels may vary in length from 2.5 centimetres (1 inch) to 25 cm (10 inches) or more if a platform sole is used, and are sometimes defined as having a diameter at the ground of less than 1 cm (slightly less than half an inch). Stiletto-style heels or shorter are called kitten heels. History High-heeled shoes were worn by men and women courtiers until the French Revolution. When high heels came back in style in the late 1800s, they were worn only by women. The stiletto heel came with the advent of technology using a supporting metal shaft or stem embedded into the heel, instead of wood or other, weaker materials that required a wide heel. Italian shoe designer Salvatore Ferragamo paved the way for stilettos by inventing the steel arch. Some historians also credit him with inventing the stiletto heel, while others credit French ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vandalism
Vandalism is the action involving deliberate destruction of or damage to public or private property. The term includes property damage, such as graffiti and defacement directed towards any property without permission of the owner. The term finds its roots in an Enlightenment view that the Germanic Vandals were a uniquely destructive people, as they sacked Rome in 455 AD. Etymology The Vandals, an ancient Germanic people, are associated with senseless destruction as a result of their sack of Rome under King Genseric in 455. During the Enlightenment, Rome was idealized, while the Goths and Vandals were blamed for its destruction. The Vandals may not have been any more destructive than other invaders of ancient times, but they did inspire English poet John Dryden to write, ''Till Goths, and Vandals, a rude Northern race, Did all the matchless Monuments deface'' (1694). However, the Vandals did intentionally damage statues, which may be why their name is associated with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Community Hall
A community centre, community center, or community hall is a public location where members of a community gather for group activities, social support, public information, and other purposes. They may be open for the whole community or for a specialized subgroup within the greater community. Community centres can be religious in nature, such as Christianity, Christian Church (building), churches, Islamic mosques, Jewish synagogues, Hindu Hindu temple, temples, or Buddhist Buddhist temple, temples; though they can also be secular and in some cases government-run, such as youth clubs or Leisure centres. Uses The community centres are usually used for: * Celebrations, * Public meetings of the citizens on various issues, * Organising meetings (where politicians or other official leaders come to meet the citizens and ask for their opinions, support or votes ("Political campaign, election campaigning" in democracies, other kinds of requests in non-democracies)), * Volunteer activi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Repetitive Strain Injury
A repetitive strain injury (RSI) is an injury to part of the musculoskeletal or nervous system caused by repetitive use, vibrations, compression or long periods in a fixed position. Other common names include repetitive stress injury, repetitive stress disorders, cumulative trauma disorders (CTDs), and overuse syndrome. Signs and symptoms Some examples of symptoms experienced by patients with RSI are aching, pulsing pain, tingling and extremity weakness, initially presenting with intermittent discomfort and then with a higher degree of frequency. Definition Repetitive strain injury (RSI) and associative trauma orders are umbrella terms used to refer to several discrete conditions that can be associated with repetitive tasks, forceful exertions, vibrations, mechanical compression, sustained or awkward positions, or repetitive eccentric contractions. The exact terminology is controversial, but the terms now used by the United States Department of Labor and the National Institu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Judo
is an unarmed gendai budō, modern Japanese martial art, combat sport, Olympic sport (since 1964), and the most prominent form of jacket wrestling competed internationally.『日本大百科全書』電子版【柔道】(CD-ROM version of Encyclopedia Nipponica, "Judo"). Judo was created in 1882 by Kanō Jigorō () as an eclectic martial art, distinguishing itself from its predecessors (primarily Tenjin Shin'yō-ryū, Tenjin Shinyo-ryu jujutsu and Kitō-ryū jujutsu) due to an emphasis on "randori" (, lit. 'free sparring') instead of alongside its removal of striking and weapon training elements. Judo rose to prominence for its dominance over Kodokan–Totsuka rivalry, established jujutsu schools in tournaments hosted by the Tokyo Metropolitan Police Department (警視庁武術大会, ''Keishicho Bujutsu Taikai''), resulting in its adoption as the department's primary martial art. A judo practitioner is called a , and the judo uniform is called . The objective of competitive ju ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Floor (gymnastics)
In gymnastics, the floor is a specially prepared exercise surface, considered an apparatus. The floor exercise (English abbreviation FX) is the event performed on the floor, in both women's and men's artistic gymnastics (WAG and MAG). The same floor is used for WAG FX and MAG FX, but rules and scoring differ; most obviously, a WAG FX routine is synchronised to a piece of recorded dance music, whereas MAG FX has no musical accompaniment. A spring floor is used in all gymnastics to provide more bounce and help prevent potential injuries to gymnasts' lower extremity joints due to the nature of the apparatus, which includes the repeated pounding required to train it. Cheerleading also uses spring floors for practice. The sprung floor used for indoor athletics is designed to reduce bounce. The apparatus The apparatus originated as a 'free exercise' for men, very similar to the floor exercise of today. Most competitive gymnastics floors are spring floors. They contain Spring (device), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friction
Friction is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other. Types of friction include dry, fluid, lubricated, skin, and internal -- an incomplete list. The study of the processes involved is called tribology, and has a history of more than 2000 years. Friction can have dramatic consequences, as illustrated by the use of friction created by rubbing pieces of wood together to start a fire. Another important consequence of many types of friction can be wear, which may lead to performance degradation or damage to components. It is known that frictional energy losses account for about 20% of the total energy expenditure of the world. As briefly discussed later, there are many different contributors to the retarding force in friction, ranging from asperity deformation to the generation of charges and changes in local structure. When two bodies in contact move relative to each other, due to these variou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engineered Wood
Engineered wood, also called mass timber, composite wood, man-made wood, or manufactured board, includes a range of derivative wood products which are manufactured by binding or fixing the strands, particles, fibres, veneers, or boards of wood, together with adhesives, or other methods of fixation to form composite material. The panels vary in size but can range upwards of and in the case of cross-laminated timber (CLT) can be of any thickness from a few inches to or more. These products are engineered to precise design specifications, which are tested to meet national or international standards and provide uniformity and predictability in their structural performance. Engineered wood products are used in a variety of applications, from home construction to commercial buildings to industrial products. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Performance Surface
A performance is an act or process of staging or presenting a play, concert, or other form of entertainment. It is also defined as the action or process of carrying out or accomplishing an action, task, or function. Performance has evolved globally, from ancient rituals to modern artistic expressions. Expanding the article with historical and cultural perspectives would improve its scope. Ancient & Classical Theater: Rooted in rituals (Egyptian passion plays, Indigenous storytelling), early performances led to Greek tragedy, Sanskrit drama, and Chinese opera. Medieval & Early Modern Performance: Includes mystery plays in Europe, Commedia dell’arte in Italy, and Kabuki & Noh in Japan. Contemporary & Political Performance: Modern forms include agitprop theater, Forum Theater, and performance art as activism. By highlighting global traditions, the article would better reflect performance as a universal human expression shaped by history and culture. Management science In the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
