How to spot a counterfeit bill - Tien Nguyen
1,021,810 Views
6,827 Questions Answered
TEDEd Animation
Let’s Begin…
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.
WatchThink 5 Multiple Choice &
3 Open Answer Questions Dig Deeper Learn More Discuss 1 Guided Discussion &
1 Open Discussion
3 Open Answer Questions Dig Deeper Learn More Discuss 1 Guided Discussion &
1 Open Discussion
The fluorescent ink bands are all different colors on each bill denomination. What does that tell you about the wavelengths that each band emits?
Login to answer questionAbout TED-Ed Animations
TED-Ed Animations feature the words and ideas of educators brought to life by professional animators. Are you an educator or animator interested in creating a TED-Ed Animation? Nominate yourself here »
Meet The Creators
- Educator Tien Nguyen
- Director Lippy
- Narrator Addison Anderson