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Paddle-ball
Paddle ball is a racquet sport that is played on a court half the size of a tennis court, using specialized paddles. The paddle is made of wood or graphite, and has holes to reduce air friction. The game is played in singles (two players) or in doubles (four players). Necessary equipment To play paddle ball, it is necessary to have a paddle (resembling a racquetball paddle) that is no longer than 18 inches and no wider than 9.5 inches. The paddle ball is made of rubber and is the size of a softball. Air holes in the ball enable less friction in its travel. Paddleballs come in yellow and light green. Court Paddle ball is normally played on a court A court is an institution, often a government entity, with the authority to adjudicate legal disputes between Party (law), parties and Administration of justice, administer justice in Civil law (common law), civil, Criminal law, criminal, an ... that is 20 feet wide and 50 feet long, with a wall that is 16 feet in height. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Racket Sports
Racket sports (or racquet sports) are games in which players use a Racket (sports equipment), racket or paddle to hit a ball or other object. A racket has a handled frame with an open hoop that supports a network of tightly stretched strings. A paddle, sometimes called a bat, has a solid face rather than a network of strings, but may be perforated with a pattern of holes, or be covered with a textured surface. Racketlon, a racket sport quadrathlon, is a multisport competition in which participants compete in a series of four separate racket sports: table tennis, badminton, squash, and tennis. Sports that use a netted racket Sports that use a solid-faced paddle See also * Basque pelota * Bat-and-ball games * List of stick sports * Pallone References External links A chronology of racket sports by Racquet Warriors {{DEFAULTSORT:Racket Sport Racket sports, * Sport-related lists by sport ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennis Court
A tennis court is the venue where the sport of tennis is played. It is a firm rectangular surface with a low net stretched across the centre. The same surface can be used to play both Types of tennis match, doubles and singles matches. A variety of surfaces can be used to create a tennis court, each with its own characteristics which affect the playing style of the game. Dimensions The dimensions of a tennis court are defined and regulated by the International Tennis Federation (ITF) governing body and are written down in the annual 'Rules of Tennis' document. The court is long. Its width is for singles matches and for doubles matches. The Service line (tennis), service line is from the net. Additional clear space around the court is needed in order for players to reach overrun balls for a total of wide and long. A net is stretched across the full width of the court, parallel with the Glossary of tennis terms#Baseline, baselines, dividing it into two equal ends. The net ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wood
Wood is a structural tissue/material found as xylem in the stems and roots of trees and other woody plants. It is an organic materiala natural composite of cellulosic fibers that are strong in tension and embedded in a matrix of lignin that resists compression. Wood is sometimes defined as only the secondary xylem in the stems of trees, or more broadly to include the same type of tissue elsewhere, such as in the roots of trees or shrubs. In a living tree, it performs a mechanical-support function, enabling woody plants to grow large or to stand up by themselves. It also conveys water and nutrients among the leaves, other growing tissues, and the roots. Wood may also refer to other plant materials with comparable properties, and to material engineered from wood, woodchips, or fibers. Wood has been used for thousands of years for fuel, as a construction material, for making tools and weapons, furniture and paper. More recently it emerged as a feedstock for the production ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Graphite
Graphite () is a Crystallinity, crystalline allotrope (form) of the element carbon. It consists of many stacked Layered materials, layers of graphene, typically in excess of hundreds of layers. Graphite occurs naturally and is the most stable form of carbon under standard conditions. Synthetic and natural graphite are consumed on a large scale (1.3million metric tons per year in 2022) for uses in many critical industries including refractories (50%), lithium-ion batteries (18%), foundries (10%), and lubricants (5%), among others (17%). Graphite converts to diamond under extremely high pressure and temperature. Graphite's low cost, thermal and chemical inertness and characteristic conductivity of heat and electricity finds numerous applications in high energy and high temperature processes. Types and varieties Graphite can occur naturally or be produced synthetically. Natural graphite is obtained from naturally occurring geologic deposits and synthetic graphite is produced t ... [...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] |
Paddles
A paddle is a handheld tool with an elongated handle and a flat, widened end (the ''blade'') used as a lever to apply force onto the bladed end. It most commonly describes a completely handheld tool used to propel a human-powered watercraft by pushing water in a direction opposite to the direction of travel (i.e. paddling). A paddle is different from an oar (which can be similar in shape and perform the same function via rowing) – an oar is attached to the watercraft via a fulcrum. The term "paddle" can also be used to describe objects of similar shapes or functions: *A rotating set of paddle boards known as a paddle wheel is used to propel a steamboat or paddle steamer. *In a number of racquet sports (e.g. ping-pong and paddle ball), a "paddle" or "bat" is a short, solid racket used to strike a ball. *A mixing paddle is a device used to stir or mix separate ingredients within a mixture. *A spanking paddle is used in corporal punishment, typically to forcefully hit someone ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Racquetball
Racquetball is a racquet sport and a team sport played with a hollow rubber ball on an indoor or outdoor court. Joseph Sobek invented the modern sport of racquetball in 1950, adding a stringed racquet to paddleball in order to increase velocity and control. Unlike most racquet sports, such as tennis and badminton, there is no net to hit the ball over, and, unlike squash, no tin (out of bounds area at the bottom of front wall) to hit the ball above. Also, the court's walls, floor, and ceiling are legal playing surfaces, with the exception of court-specific designated hinders being out-of-bounds. Racquetball is played between various players on a team who try to bounce the ball with the racquet onto the ground so it hits the wall, so that an opposing team’s player cannot bounce it back to the wall. The sport is very similar to 40×20 American handball, which is played in many countries. It is also very similar to the British sport Squash 57, which was called racketball ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Court Tennis
Real tennis – one of several games sometimes called "the sport of kings" – is the original racquet sport from which the modern game of tennis (also called "lawn tennis") is derived. It is also known as court tennis in the United States, royal tennis in England and Australia, and ''courte-paume'' in France (to distinguish it from longue-paume, and in reference to the older, racquetless game of ''jeu de paume'', the ancestor of modern handball and racquet games). Many French real tennis courts are at ''jeu de paume'' clubs. The term ''real'' was first used by journalists in the early 20th century as a retronym to distinguish the ancient game from modern ''lawn'' tennis (even though, at present, the latter sport is seldom contested on lawns outside the few social-club-managed estates such as Wimbledon). There are just 45 active real tennis courts in the world, located in the United Kingdom, Australia, the United States and France. There are also currently six disused ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Racket Sports
Racket sports (or racquet sports) are games in which players use a racket or paddle to hit a ball or other object. A racket has a handled frame with an open hoop that supports a network of tightly stretched strings. A paddle, sometimes called a bat, has a solid face rather than a network of strings, but may be perforated with a pattern of holes, or be covered with a textured surface. Racketlon, a racket sport quadrathlon, is a multisport competition in which participants compete in a series of four separate racket sports: table tennis, badminton, squash, and tennis. Sports that use a netted racket Sports that use a solid-faced paddle See also * Basque pelota * Bat-and-ball games Bat-and-ball games, or safe haven games, are playing field, field games played by two opposing teams. Action starts when the defending team throws a ball at a dedicated player of the attacking team, who tries to hit it with a bat and then run bet ... * List of stick sports * Pallone Refe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forms Of Tennis
Form is the shape, visual appearance, or configuration of an object. In a wider sense, the form is the way something happens. Form may also refer to: *Form (document), a document (printed or electronic) with spaces in which to write or enter data *Form (architecture), a combination of external appearance, internal structure, and the unity of the design *Form (education), a class, set, or group of students *Form (religion), an academic term for prescriptions or norms on religious practice *Form, a shallow depression or flattened nest of grass used by a hare *Form, or rap sheet, slang for a criminal record People * Andrew Form, American film producer * Fluent Form, Australian rapper and hip hop musician Arts, entertainment, and media * Form (arts organisation), a Western Australian arts organisation * Form (visual art), a three-dimensional geometrical figure; one of the seven elements of art *Poetic form, a set of structural rules and patterns to which a poem may adhere *Musi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
