Where Does Color Come From? What Causes Iridescence?

STRUCTURAL COLOR: Nate and Sam visit Lauren Zarzar, assistant professor of chemistry at Penn State, to talk about color and a cool kitchen science experiment. Where does color come from and what makes things like opals and butterfly wings iridescent?
Links to Lauren's work:
- @LaurenZarzar on Twitter - https://twitter.com/LaurenZarzar
- Lauren's Website - http://www.zarzarlab.com
Links to the Eberly College of Science:
- Eberly College of Science Facebook - https://www.facebook.com/PennStateScience
- Eberly College of Science Twitter - https://twitter.com/PSUScience
- Eberly College of Science Instagram - https://www.instagram.com/pennstatescience
- Eberly College of Science Website - http://science.psu.edu/