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!
Hit Me In The Face (With A Curling Iron) [Demo] by Schlimminy Cricket
"Curling shoes," one with a slippery Teflon slider built into the sole and the other with just grippy rubber on the bottom, are used to allow players to slide smoothly down the ice during their delivery (sliding) of the curling rock. "Curling brooms" or "curling brushes" are used to "sweep" the ice in front of the rock, decreasing the friction between the rock and the ice and making the rock go both farther, and curl (curve) less if so desired. Brooms are also used by most players during their delivery for balance. Many teams will use stop watches to time a rock between certain points on the ice, to get an idea of how fast the rock is moving.
curling is a event in the winter Olympics where one takes a curling stone and slides it down a ice run way where he has two "sweepers" when he says sweep the literally sweep the ice causing friction slowing down the stone to either make it into the circles in the end of the run way or knock the opponents stone out of the way.
geting hit by a curling rock fallinf and cracking your head open. trip other people.
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.
The transferrence of momentum from one stone to the other is a good example.
42 lbs.
In addition to the curling stone granite quarry in Wales, there is one other quarry on an island off the coast of Scotland called Ailsa Craig.
You need to thoroughly understand the rules of the game: http://en.wikipedia.org/wiki/Curling#Gameplay From there, you need to be able to have precision in rolling the stone and/or skills to brush the stone into the proper location on the target.