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Tackle (football move) print that page


ground towards goal or to stop them from carrying out what they intend. The word is used in some contact variations of football to describe the act of physically holding or wrestling a player to the ground. In others, it simply describes one or more methods of contesting for possession of

Rotary Youth Exchange print that page


Rotary Club that hosts a student provides a Rotarian counselor for the student who is the student's contact person within the club and provides support to the student when needed. Some districts are very active and host and send many students, other districts are less active and host fewer

Heat sink print that page


light emitting diodes (LEDs). A heat sink is physically designed to increase the surface area in contact with the cooling fluid surrounding it, such as the air. Approach air velocity, choice of material, fin (or other protrusion) design and surface treatment are some of the design factors

Stock car racing print that page


A stock car , in the original sense of the term, described an automobile that has not been modified from its original factory configuration. Later the term stock car came to mean any production-based automobile used in racing. This term is used to differentiate such a car from a race car

Nine-ball print that page


In recent decades, nine-ball has become the dominant tournament game in professional pool, in the World Pool-Billiard Association , Women's Professional Billiard Association and United States Professional Poolplayers Association . Matches proceed quickly, suitable for the time constraints

Escapement print that page


In mechanical watches and clocks , an escapement is a device that (1) transfers energy to the timekeeping element and (2) enables counting the number of oscillations of the timekeeping element. It is the source of the "ticking" sound in watches and clocks. An escapement transfers energy

Technical foul print that page


or a "Tech") is any infraction of the rules penalized as a foul which does not involve physical contact during the course of play between players on the court, or is a foul by a non-player. The most common technical foul is for unsportsmanlike conduct. Technical fouls can be assessed against

Overhead lines print that page


pole . The device presses against the underside of the lowest wire of an overhead line system, the contact wire. The current collectors are electrically conductive and allow current to flow through to the train or tram and back to the feeder station through the steel wheels on one or both

Touch football (rugby league) print that page

1960s, with the tackle of opposing players replaced by a touch. [2] Touch is therefore not a contact sport but a limited contact sport. Distinctive features of Touch include the ease of learning, minimal equipment requirements and the ability to play it without fear of major injury. | 2011/8/11 7:05:35

Suspension (vehicle) print that page


Ancient military engineers used leaf springs in the form of bows to power their siege engines, with little success at first. The use of leaf springs in catapults was later refined and made to work years later. Springs were not only made of metal, a sturdy tree branch could be used as a spring