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.com

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.com

Why do newspapers turn yellow over time?

Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

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Why do newspapers turn yellow over time?

Why do newspapers turn yellow over time?