3 ms·

Actually this gives me an idea. Could you use carbon dating to compare a bills age with the serial number or date minted to prevent counterfiets? Or perhaps th

Actually this gives me an idea. Could you use carbon dating to compare a bills age with the serial number or date minted to prevent counterfiets? Or perhaps the treasury could start embedding carbon 14 into bills? (wow I really need to start patentng this stuff!)

arethuza 15y ago
Euro notes already have small amounts of the element Europium within them as an anti-forgery mechanism - which might be prior art :-) http://en.wikipedia.org/wiki/Europium http://en.wikipedia.org/wiki/Europium
- tocomment 15y ago
  I wonder how they chose that element...