The lights are on the lower round plastic part of the handle, just in front of and to either side of where the actual part you grab meets it.
The lights are used to indicate hog line violations.
The "hog line" is the thick line running across the sheet 15 feet out from the house. The rock must be released from the shooter's hand before the rock reaches the hog line. If the rock is not released in time, it's called a "hog line violation" or "hogged rock," and the rock must be removed from play immediately, with no do-over of the shot.
It used to be that an official would sit at the hog line and watch for violations, but that was subject to human error. Now, at major national and international competitions, electronic touch-sensitive handles are used instead. Green lights illuminate if the rock is released before the hog line. Red lights flash if the rock is not released in time.
Yes, they're also known as kettle balls. A curling stone is moved over the ice by means of a gooseneck handle on the top.
42 lbs.
Curling...Oh, how I hate Curling. :P
Granite.
yes
Yes the stone can hurt you. A Russian in the Olympics fell over the curling stone as he was brushingThe Russian olympic player bashed his face and his shoulder!
The Royal Burgess Golfing Society of Edinburgh (1735)
Curling stones are made of a very specific type of granite mined from one of two quarries in the United Kingdom: Ailsa Craig, a small island off the coast of Scotland, and Trefor Quarry in Wales.
A curling stone is made of granite and weighs between 38 and 44 lbs.
Although the curlers make it look effortless, the curling stones must weigh between 38 to 44 pounds.
A Stone
Curling is a Winter sport played on ice. The rock or Stone is hurled or bowled as players use a broom to sweep the ice in front of the stone as it slide across the ice.