Today is Pi Day -- a celebration of the number pi (and pies, and mathematics in general). Learn what pi is and how this holiday came about in today's episode of BrainStuff.
Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

How Did Beer Help Sell the Myth of Custer's Last Stand?
10:08

How Does Bioluminescence Work?
12:15

How Is Maillardet's Automaton Still Wowing Us After 200 Years?
09:28