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stem in sports: technology
the goal line or not. In the 2010 World Cup,
England lost a goal when officials did not no-
tice that the ball was clearly past the goal line.
The outcry led to the rapid development of
goal-line technology (GLT) for the 2014 World
Cup in Brazil. Seven cameras were trained at
each goal to cover every possible angle. After
a goal or near-goal, the cameras instantly cre-
ated a graphic to show where the ball went.
If the on-field referees missed a call, they re-
ceived a signal within seconds and could stop
play to make the right call, thanks to GLT.
A key for all of these systems is speed.
Sports depends on a rapid pace, and anything
that impedes that pace is bad for fans and
players alike. The ability of computers and
cameras almost instantly to produce images
for accurate judging has made this tech a vi-
tal part of many sports.
Watch What You Post
T
he
technology
of
social
media
has
certainly
helped athletes connect with their fans
(see page 16). But teams and schools
are using the technology just as frequently,
though with their own needs and aims in
mind.
College athletic departments regularly
monitor the social media posts of young
people being recruited for their schools. And
high school athletes need to watch what they