In fact, there are applications in which low-frequency RFID tags are embedded in metal auto parts to track them. Radio waves bounce off metal and are absorbed by water at ultrahigh frequencies. That ...

SAO PAULO, Brazil — Kumho Tire Co. Inc. is partnering with, a Brazilian manufacturer of smart tags, to incorporate the ...

RFID tags are great little pieces of technology, but unfortunately, the combination of paper, metal, and silicon means they are as bad as some modern pregnancy tests — single-use electronic ...