[J_Player]

US currency and Euros have embedded radio frequency ID tags in each note:
http://www.prisonplanet.com/022904rfidtagsexplode.html
http://news.cnet.com/2100-1017_3-100...tml?tag=fd_top
http://www.scienceprog.com/radio-fre...fication-rfid/
http://www.pinktentacle.com/2007/02/...s-rfid-powder/



But why not build an RFID reader? Could you build a paper money detector using electronics?
http://todbot.com/blog/2007/08/09/ad...s-rfid-reader/

In 2005, an RFID tag was scanned at a distance of 69 feet...
http://blog.makezine.com/archive/200...n_rfid_wo.html
Does this mean that Devcon produced a prototype for a true long range treasure locator?

Best wishes,
J_P