Excellent article on how counterfeit detector pens work.
The pens detect the starch content in money. Regular paper has starch, currency paper doesn't.
Magician and skeptic James Randi uses an ironing product, spray starch, that makes genuine bills appear counterfeit. Then he returns the starched bills to the bank. Eventually someone will attempt to pass the genuine but starched bill, leading to police, siezed money, etc.
Just What One would Expect from a Military Dictatorship That Respects Neither Private Property Rights Nor Human Rights - Egyptian government officials have attacked an edict of a religious scholar approving of landowners keeping treasure found on their own land as long as par...
3 days ago