Microchips in World Cup Balls

Here's a bit of soccer news that even Nomad might find interesting. FIFA (the world governing body for soccer) is experimenting with implanting soccer balls with microchips that will indicate whether the ball has crossed the goal line or not. No indication of exactly how they work, but it seems like there would also be a microchip in the goal post of the net that would sense the chip in the ball and send a signal indicating a goal. Nonetheless it's an interesting application of tech to help make sports a little more fair. Maybe they'll start implanting these chips in footballs and hockey pucks in the future, but for now it's only in the testing phase.