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.
Like Sending Back Art Nazis Looted - Anyone who still thinks the Iraqi Jewish Archive should be repatriated to Iraq should read this story about a Canadian doctor born an Iraqi Jew who just wa...
2 days ago