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How to spot a counterfeit bill - Tien Nguyen

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TEDEd Animation

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Authentic dollar bills are equipped with many security features to make them difficult to forge. But that doesn’t stop counterfeiters from trying to fool people with fakes. Luckily, anyone can help catch a counterfeit; all you need are a few simple tools and a bit of chemistry. Tien Nguyen details the chemistry behind counterfeit cash.

Fluorescent ink absorbs ultraviolet light, loses some energy as heat then radiates _____ that appear in the visible light range.

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Meet The Creators

  • Educator Tien Nguyen
  • Director Lippy
  • Narrator Addison Anderson

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