Delivering mail to all 372 million Americans along all 214,000 postal routes is no easy task. Learn how the U.S. Postal Service designs those routes in this episode of BrainStuff. 

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<p>Delivering mail to all 372 million Americans along all 214,000 postal routes is no easy task. Learn how the U.S. Postal Service designs those routes in this episode of BrainStuff. </p><p> </p> Learn more about your ad-choices at <a href="https://www.iheartpodcastnetwork.com">https://www.iheartpodcastnetwork.com</a>

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.

BrainStuff

How Do Mail Carriers Get Their Routes?

https://api.omny.fm/orgs/e73c998e-6e60-432f-8610-ae210140c5b1/clips/f2f5707a-f1f9-4456-b57f-ae32004cc549/transcript