Nevyn, on 22 February 2018 - 06:40 PM, said:
The Swampfather, on 22 February 2018 - 06:33 PM, said:
They are actually lasers.
The curler has to let go of the rock before he/she passes the hog line. The stones have detectors in them for when the handle was released and where the stone is. On a legal throw they light up green. If a curler held on two long, they would flash, and they'd burn the curler.
Its called a hog line incineration. Hardly ever happens.
Fixed that for make boring sport more interesting.