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Stringing Machine
A stringing machine is a tool used to install strings into a racquet through a process called racquet stringing. These machines vary in features, accuracy and price. Stringing time Stringing a racquet can take up to an hour for a novice, or around twenty minutes for a skilled stringer; during professional tournament a very skilled stringer may be asked to string a racquet while the player is on court. These string jobs can take just 10 minutes for a seasoned tournament stringer. Stringing differences between sports Tennis Tennis strings are usually made up of gut, polyester or a hybrid of the two but have been known to consist of other materials including: nylon, metal, multifilament and Kevlar. Racquet tension can vary from anywhere from 30-70 lbs. Professional players tend to opt for the upper limit of the racquet tension range, however, an increasing number of recent players have been choosing lower tensions to favour power. Badminton Badminton strings are usually made up ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Strings (tennis)
In tennis, the strings are the part of a tennis racquet which make contact with the ball. The strings form a woven network inside the head (or "hoop") of the racquet. Strings have been made with a variety of materials and possess varying properties that have been measured, such as dynamic stiffness, tension retention, thickness (gauge), string texture (shape of the string), and rebound efficiency. Composition The material used in tennis string can significantly affect a player's performance, and even health. Several materials are used to make tennis strings. They vary in terms of elasticity, durability, rebound efficiency, tension holding capability, and manufacturing cost, among other considerations. Natural gut Animal intestine is the most resilient material used to make tennis strings. It has better tension retention than any other material, and also is softer than any other material used for tennis strings. It provides the most energy return, meaning it is the most efficient ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Drop Weight Stringing Machine DISCHO-Veritas OR
Drop, DROP, drops or DROPS may refer to: * Drop (liquid) or droplet, a small volume of liquid ** Eye drops, saline (sometimes mydriatic) drops used as medication for the eyes * Drop (unit), a unit of measure of volume * Falling (physics), allowing an object to fall or drop **Free fall * Drop, or topographic prominence, the height of a hill above its surroundings Computers and technology * Drop (SQL), a command in SQL queries to remove an existing database, table, index, or view * Drop (telecommunication), the portion of a device directly connected to the internal station facilities * Don't Route Or Peer (DROP) list, a list of spam sources Confectionery * Drops (confectionery), a general term for small, round sweets * Lemon drop (candy), a hard-sugar, lemon-flavored sweet * Hershey's Drops, chocolate sweets based on the Hershey bar * London drops, a Swedish/Finnish sugar-coated liquorice sweet * Drop (''Eng.'' Salty liquorice), a common Dutch sweet * Cough drop, or throa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tension (physics)
In physics, tension is described as the pulling force transmitted axially by the means of a string, a rope, chain, or similar object, or by each end of a rod, truss member, or similar three-dimensional object; tension might also be described as the action-reaction pair of forces acting at each end of said elements. Tension could be the opposite of compression (physics), compression. At the atomic level, when atoms or molecules are pulled apart from each other and gain potential energy with a restoring force still existing, the restoring force might create what is also called tension. Each end of a string or rod under such tension could pull on the object it is attached to, in order to restore the string/rod to its relaxed length. Tension (as a transmitted force, as an action-reaction pair of forces, or as a restoring force) is measured in newton (unit), newtons in the International System of Units (or pounds-force in Imperial units). The ends of a string or other object transmitt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crank (mechanism)
A crank is an arm attached at a right angle to a rotating shaft by which circular motion is imparted to or received from the shaft. When combined with a connecting rod, it can be used to convert circular motion into reciprocating motion, or vice versa. The arm may be a bent portion of the shaft, or a separate arm or disk attached to it. Attached to the end of the crank by a pivot is a rod, usually called a connecting rod (conrod). The term often refers to a human-powered crank which is used to manually turn an axle, as in a bicycle crankset or a brace and bit drill. In this case a person's arm or leg serves as the connecting rod, applying reciprocating force to the crank. There is usually a bar perpendicular to the other end of the arm, often with a freely rotatable handle or pedal attached. Examples Familiar examples include: Hand-powered cranks * Spinning Wheel * Mechanical pencil sharpener * Fishing reel and other reels for cables, wires, ropes, etc. *Starting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tennis Equipment
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 changed ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Badminton Equipment
Badminton is a racquet sport played using racquets to hit a shuttlecock across a net. Although it may be played with larger teams, the most common forms of the game are "singles" (with one player per side) and "doubles" (with two players per side). Badminton is often played as a casual outdoor activity in a yard or on a beach; formal games are played on a rectangular indoor court. Points are scored by striking the shuttlecock with the racquet and landing it within the opposing side's half of the court. Each side may only strike the shuttlecock once before it passes over the net. Play ends once the shuttlecock has struck the floor or if a fault has been called by the umpire, service judge, or (in their absence) the opposing side. The shuttlecock is a feathered or (in informal matches) plastic projectile which flies differently from the balls used in many other sports. In particular, the feathers create much higher drag, causing the shuttlecock to decelerate more rapidly. Shu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
