Check out the new RFID tags that are smaller than human hair from Hitachi Japan!
The minute devices measure just 0.05mm by 0.05mm (0.002×0.002in) and to the naked eye look like spots of powder.
They are thin enough to be embedded in a sheet of paper, Hitachi spokesman Masayuki Takeuchi says.
RFID tags store data about the objects they are attached to, and companies are vying to create increasingly tiny versions.
Recently, Hitachi unveiled anoth