Counterfeiting of coins has a long history. No less a personage than Isaac Newton took this bull by the horns. Late in his career he became Master of the Mint and obsessed about counterfeiters. He...
Video of Dr. Joe Schwarcz: The truth about spirulina
Video of Dr. Joe Schwarcz on the chemistry of Jell-O
Video of Dr. Joe Schwarcz on the chemistry of shoe polish
