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Most curling clubs have an ice maker whose main job is to care for the ice.
When no independent officials are available, free giveaway sign the vice skips measure the distances.The weight of the stone is its velocity, which depends on the leg drive of the delivery rather than the arm.Archived from the original on 2 September 2012.This gives curling its nickname of " chess on ice".To simplify matters, only communicate weight if it's different than what the skip expects.Generally, the larger the lead a team will have in a game, the more defensively they should play.With the brush head on the ice, place the inside hand (the hand closest to the rock) on the brush handle half way down using downward pressure.Curling clubs can be very loud at times and visual contact with the skip may be the only means of communication.(photographed in March 2014).Most rocks, if thrown without a rotation, will assume a rotation at some unpredictable point.Head "float meaning the head of the broom drifts off the line, may result during the transition to these brooms.If the red team scores three points in the first end (called a three-ender then a 1 (indicating the first end) is placed beside the number 3 in the red row.The leading half pushes down harder on the ice than the back, generating more friction at the front.Sweeping with only one person will reduce the effectiveness by forty percent.Large events, such as the Brier or other national/international championships, are typically held in an arena that presents a challenge to the ice maker, who must constantly monitor and adjust the ice and air temperatures as well as air humidity levels to ensure a consistent.Judging the weight of the rock is very difficult and takes lots of practice.
Mark Shegelski, a professor of physics at the University of Northern British Columbia, who has also published several scientific papers on the physics of curling, helps us to break down the science of the game.