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.
Renewals for Bolivia, Egypt and Greece Point to the Need for Major Reform
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This is what I said more or less at today's CPAC hearing. I hope to have a
summary done when I can, but it will probably be delayed due to travel
commit...
13 hours ago
1 comment:
The amazing randi sounds like an amazing jerk.
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