Investigators sometimes use chemicals and special lighting to uncover fingerprints that cannot be seen with the eye alone.

VOA: special.2010.05.05

We can have a more sophisticated use of metrics and if we must use an eye test, use the coaches who have trained their eyes for decades and made their living analyzing teams.

FORBES: Do We Really Need Humans To Select NCAA Teams? If So, Then Let Coaches Pick the Teams, Not Administrators.

Do not use Eye-Fi cards inside aircraft, or where the use of radio transmissions are limited or forbidden, or set the Eye-Fi card's transmission function to OFF.

ENGADGET: Olympus Stylus TG-625 Tough adds AF light for tricky shots in rough situations

While both CAIROS and GoalRef use magnetic fields around the goal and need to insert a chip in the ball, Hawk-Eye and GoalControl use a 3D imaging system to determine the precise location of the ball.

CNN: Latecomer wins FIFA goal-line tech deal