"For years and years now, football (soccer) fans have been asking themselves when FIFA would finally realize the "beautiful game" needed to start implementing some sort of tech to help referees with decision-making during major tournaments and in every-day matches. Well, that time is now. After a few months of putting the so-called goal-line technology through intensive and rigorous testing, the International Football Association Board (IFAB) has once and for all approved the use of such tech in official footie games. What this means is FIFA will utilize a couple of methods, one dubbed "GoalRef" and the other "Hawk-Eye," to assist refs in any controversial calls that may take place throughout the 90 minutes (or more if there's extra-time) on either goal. The first of these uses electromagnetic antennas around the goal posts and crossbar to transmit a signal to a referee's watch as soon as the entire ball crosses the line; meanwhile, the latter requires six to eight high-speed cameras -- that shoot at 500 fps -- to grab multiple images of the match ball and quickly process them to identify if it indeed crossed the line completely -- this is also helped by black-colored dots on each goal post which aid the cameras gain a better overall precision.
What's best, though, these new systems are set to take their first legitimate runs as soon as the FIFA Club World Cup takes place in December, with the upcoming 2014 World Cup in Brazil also said to have the goal-line technology ready to be used in all of its 64 global glory-seeking matches."