Brainstuff
Why do newspapers turn yellow over time?
- Author: Vários
- Narrator: Vários
- Publisher: Podcast
- Duration: 0:03:00
- More information
Informações:
Synopsis
Newspapers turn yellow over time because they contain lignin, a substance in wood that oxidates when exposed to air and light. Learn more about lignin and paper processing in this episode of BrainStuff. Learn more about your ad-choices at https://www.iheartpodcastnetwork.comSee omnystudio.com/listener for privacy information.
