A Billion Little Pieces

How RFID, a ubiquitous but often invisible mobile technology, identifies tens of billions of objects as they move through the world.

RFID (Radio Frequency Identification) is ubiquitous but often invisible, a mobile technology used by more people more often than any flashy smartphone app. RFID systems use radio waves to communicate identifying information, transmitting data from a tag that carries data to a reader that accesses the data. RFID tags can be found in credit cards, passport…