New advances in microchip technology are creating a tiny revolution

Microchips are becoming so inexpensive to make that they'll soon be in almost everything we buy.

The idea behind the technology, is called RFID (radio frequency identification) chips. An antenna is coupled with a silicon memory chip that can store information such as names, addresses or serial numbers, built into a plastic tag. When it comes within range of a reader, it draws enough power from the radio field to return the information stored on the chip.

SMART BALLS

Football authorities have long considered electronic systems to determine whether the ball crosses the goal line. Adidas has developed a chipped ball that causes the referee's watch to beep if it passes readers in the goalposts. Similar chips in shin pads could perfect offside decisions. The Fifa president, Sepp Blatter, has said he expects a system to be up and running in time for this December's World Club Championship.