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Curling print that page


Approximately late medieval Scotland Registered players 1,200,000 Characteristics Contact No Team members 4 per team (2 in Mixed Doubles ) Mixed gender See mixed curling Categorization Precision and accuracy Equipment Curling brooms, stones (rocks), curling shoes

Third rail print that page


insulated brackets, typically at intervals of 10 feet (3.0 metres) or so. The trains have metal contact blocks called "shoes" which make contact with the conductor rail. The traction current is returned to the generating station through the running rails. The conductor rail is usually made

Tire print that page


performance by providing a flexible cushion that absorbs shock while keeping the wheel in close contact with the ground. The word itself may be derived from the word "tie," which refers to the outer steel ring part of a wooden cart wheel that ties the wood segments together (see Etymology

Sampling (statistics) print that page

In statistics and survey methodology , sampling is concerned with the selection of a subset of individuals from within a population to estimate characteristics of the whole population. Researchers rarely survey the entire population because the cost of a census is too high. The three main | 2011/10/1 1:00:25

Eyeglass prescription print that page


An eyeglass prescription is an order written by an eyewear prescriber, such as an optometrist or ophthalmologist , that specifies the value of all parameters the prescriber has deemed necessary to construct and/or dispense corrective lenses appropriate for a patient. If an examination indicates

Pinball print that page


electrification. A company called Pacific Amusements in Los Angeles, California , USA produced a game called Contact in 1933. Contact had an electrically powered solenoid to propel the ball out of a bonus hole in the middle of the playfield. Another solenoid rang a bell to reward the player

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

Powerlifting print that page


Competitions take place across the world but mostly in the United States , Canada , United Kingdom , Russia and Ukraine . It has been a Paralympic sport since 1984 and under the IPF , is also a World Games sport. Contents 1 History 2 Classes and categories 3 Competition 4

Tchoukball print that page


hit the frame and bounce outside the 'D' without being caught by the defending team. Physical contact is prohibited, and defenders may not attempt to intercept the attacking team's passes. Players may take three steps with the ball, hold the ball for a maximum of three seconds, and teams

Field hockey print that page


Hockey has several regular international tournaments for both men and women. These include the Olympic Games , the Commonwealth Games , the quadrennial Hockey World Cups , the annual Champions Trophies and World Cups for juniors . The International Hockey Federation (FIH) is the global governing