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Spikeball
Roundnet (also commonly known as spikeball) is a net sport. The game is played between two teams, usually with two players each. Players initially line up around a small trampoline-like net at the start of a point. The game starts with a serve from one team to another, and teams alternate hitting the ball back to the net, and ends when the ball falls to the ground or an infraction occurs. Roundnet was originally created in 1989 by Jeff Knurek, inspired primarily by concepts from volleyball, although the equipment he created for the game became outdated and lost popularity in 1995. The sport experienced a revival in 2008 when Spikeball Inc. began promoting it. The company manufactures equipment for the sport, and so "spikeball" became a common name for the sport. Basics Roundnet features elements from many other sports such as volleyball and four square. The game is played between two teams of two people. Players are positioned at 4 points around the net, with partners located a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spikeball (company)
Spikeball Inc. is an American sports equipment company that chiefly produces equipment for the game of roundnet. The company is the largest provider of roundnet equipment and sponsors tournaments in several countries including Belgium, Canada, and the United States. The company was founded in 2007 and is based in Chicago, Illinois. Spikeball Roundnet Association tournaments began airing on ESPN2 in May 2018. History Spikeball was founded by Chris Ruder in Chicago, Illinois. The company was incorporated in 2007 and began selling equipment for a net sport game in 2008. The game was invented in the 1980s by Jeff Knurek, an American toymaker who did not patent it. Roundnet, as the game is now known, is played with a small trampoline-like net placed on the ground between two teams with two players each who bounce a ball back and forth on the net, in a gameplay that has been compared to volleyball. Ruder was one of the purchasers of a set when it was originally sold briefly in the 198 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roundnet Serve
Roundnet (also commonly known as spikeball) is a net sport. The game is played between two teams, usually with two players each. Players initially line up around a small trampoline-like net at the start of a point. The game starts with a serve from one team to another, and teams alternate hitting the ball back to the net, and ends when the ball falls to the ground or an infraction occurs. Roundnet was originally created in 1989 by Jeff Knurek, inspired primarily by concepts from volleyball, although the equipment he created for the game became outdated and lost popularity in 1995. The sport experienced a revival in 2008 when Spikeball Inc. began promoting it. The company manufactures equipment for the sport, and so "spikeball" became a common name for the sport. Basics Roundnet features elements from many other sports such as volleyball and four square. The game is played between two teams of two people. Players are positioned at 4 points around the net, with partners located a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Roundnet Court
Roundnet (also commonly known as spikeball) is a net sport. The game is played between two teams, usually with two players each. Players initially line up around a small trampoline-like net at the start of a point. The game starts with a serve from one team to another, and teams alternate hitting the ball back to the net, and ends when the ball falls to the ground or an infraction occurs. Roundnet was originally created in 1989 by Jeff Knurek, inspired primarily by concepts from volleyball, although the equipment he created for the game became outdated and lost popularity in 1995. The sport experienced a revival in 2008 when Spikeball Inc. began promoting it. The company manufactures equipment for the sport, and so "spikeball" became a common name for the sport. Basics Roundnet features elements from many other sports such as volleyball and four square. The game is played between two teams of two people. Players are positioned at 4 points around the net, with partners located a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jeff Knurek
Jeff Knurek is an American cartoonist, industrial designer, and toymaker. He is the current cartoonist for the syndicated Jumble puzzle, working with David L. Hoyt. Personal life Knurek was born in 1966 Wyandotte, Michigan. In 2007, Knurek became an organ donor when he donated a kidney to a family member. Knurek and his cousin underwent the transplantation surgery at the University of Michigan Health System’s Transplant Center on July 11, 2007. His cousin suffered from Polycystic kidney disease. He currently lives in Fishers, Indiana, with his wife Kathy and his children Sydney and Cameron. Professional life Knurek graduated from the University of Michigan with a degree in industrial design. In 1989, while working for the I.D.E.A. toy invention studio, his creation Spikeball was marketed by Tomy. In 2002, Knurek partnered with David L. Hoyt, Tribune Content Agency, and Hasbro to develop the Boggle BrainBuster syndicated daily puzzle.Tribune Content Agency Biography - Davi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Net Sport
Net and wall games are court games where either a net separates the opponents or a wall serves to reflect the ball to the opponent. The object of these games is to hit the ball or bird over the net or against the wall back to the opponent. Play typically begins with one side ''serving'' the ball/bird by initially tossing or releasing it and then hitting it over the net. This then starts a ''rally'', in which the sides alternate hitting the ball/bird over the net. Players then score points whenever the opponent fails to return the ball/bird back over the net. The criteria on what is considered a valid return varies between each sport (such as the number of times the ball may be touched or bounced on a player's side before it must go back over the net). Net and wall games usually include: * racquet sports such as tennis, badminton, pickleball, table tennis, squash, racquetball. * volleyball, footvolley, Jokgu, headis, roundnet or sepak takraw, where players must hit the ball wit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deuce (tennis)
This page is a glossary of tennis terminology. A * Ace: Serve where the tennis ball lands inside the '' service box'' and is not touched by the receiver; thus, a shot that is both a serve and a winner is an ace. Aces are usually powerful and generally land on or near one of the corners at the back of the service box. Initially, the term was used to indicate the scoring of a point. * Action: Synonym of ''spin''. * Ad court: Left side of the court of each player, so called because the ''ad'' (''advantage'') point immediately following a deuce is always served to this side of the court. * Ad in: '' Advantage'' to the ''server''. * Ad out: '' Advantage'' to the '' receiver''. * Ad: Used by the chair umpire to announce the score when a player has the '' advantage'', meaning they won the point immediately after a ''deuce''. See scoring in tennis. * Advantage set: Set won by a player or team having won at least six games with a two-game advantage over the opponent (as opposed to a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennis
Tennis is a racket sport that is played either individually against a single opponent ( singles) or between two teams of two players each ( doubles). Each player uses a tennis racket that is strung with cord to strike a hollow rubber ball covered with felt over or around a net and into the opponent's court. The object of the game is to manoeuvre the ball in such a way that the opponent is not able to play a valid return. The player who is unable to return the ball validly will not gain a point, while the opposite player will. Tennis is an Olympic sport and is played at all levels of society and at all ages. The sport can be played by anyone who can hold a racket, including wheelchair users. The modern game of tennis originated in Birmingham, England, in the late 19th century as lawn tennis. It had close connections both to various field (lawn) games such as croquet and bowls as well as to the older racket sport today called real tennis. The rules of modern tennis have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Table Tennis
Table tennis, also known as ping-pong and whiff-whaff, is a sport in which two or four players hit a lightweight ball, also known as the ping-pong ball, back and forth across a table using small solid rackets. It takes place on a hard table divided by a net. Except for the initial serve, the rules are generally as follows: Players must allow a ball played toward them to bounce once on their side of the table and must return it so that it bounces on the opposite side. A point is scored when a player fails to return the ball within the rules. Play is fast and demands quick reactions. Spinning the ball alters its trajectory and limits an opponent's options, giving the hitter a great advantage. Table tennis is governed by the worldwide organization International Table Tennis Federation (ITTF), founded in 1926. ITTF currently includes 226 member associations. The official rules are specified in the ITTF handbook. Table tennis has been an Olympic sport since 1988, with several event ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bouncing Ball
The physics of a bouncing ball concerns the physical behaviour of bouncing balls, particularly its motion before, during, and after impact against the surface of another body. Several aspects of a bouncing ball's behaviour serve as an introduction to mechanics in high school or undergraduate level physics courses. However, the exact modelling of the behaviour is complex and of interest in sports engineering. The motion of a ball is generally described by projectile motion (which can be affected by gravity, drag, the Magnus effect, and buoyancy), while its impact is usually characterized through the coefficient of restitution (which can be affected by the nature of the ball, the nature of the impacting surface, the impact velocity, rotation, and local conditions such as temperature and pressure). To ensure fair play, many sports governing bodies set limits on the bounciness of their ball and forbid tampering with the ball's aerodynamic properties. The bounciness of balls has ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Generic Trademark
A generic trademark, also known as a genericized trademark or proprietary eponym, is a trademark or brand name that, because of its popularity or significance, has become the generic term for, or synonymous with, a general class of products or services, usually against the intentions of the trademark's owner. A trademark is said to become ''genericized''—or, informally, to have suffered ''genericide''—when it begins as a distinctive product identifier but changes in meaning to become generic. This typically happens when the products or services which the trademark is associated with have acquired substantial market dominance or mind share, such that the primary meaning of the genericized trademark becomes the product or service itself rather than an indication of source for the product or service. A trademark thus popularised has its legal protection at risk in some countries such as the United States and United Kingdom, as its intellectual property rights in the trademark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Four Square
Four square is a team sport played among two teams with two players each on a square court divided into four quadrants: A, B, C, and D (usually numbers 3, 4, 2, and 1, respectively, depending on the court.) The square that a player gets to before anyone else immediately becomes their position in the game. The objective of four square is to eliminate players on the opposing team to achieve the highest rank on the court, and this is done by bouncing the ball back and forth between quadrants. A player on one team may bounce the ball to an opponent team’s player’s square, and tries to bounce the ball in a state that the player on the opposing team can not hit it to another square. The winning team will move up in the ranks, and the team that reaches the highest rank, A (usually number 3 on numbered courts depending on the court), first, wins, with all the losing team’s players being eliminated. A player is eliminated when a ball is bounced in a player's quadrant and the player ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ball
A ball is a round object (usually spherical, but can sometimes be ovoid) with several uses. It is used in ball games, where the play of the game follows the state of the ball as it is hit, kicked or thrown by players. Balls can also be used for simpler activities, such as catch or juggling. Balls made from hard-wearing materials are used in engineering applications to provide very low friction bearings, known as ball bearings. Black-powder weapons use stone and metal balls as projectiles. Although many types of balls are today made from rubber, this form was unknown outside the Americas until after the voyages of Columbus. The Spanish were the first Europeans to see the bouncing rubber balls (although solid and not inflated) which were employed most notably in the Mesoamerican ballgame. Balls used in various sports in other parts of the world prior to Columbus were made from other materials such as animal bladders or skins, stuffed with various materials. As balls are one o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
