Particles of Thought Astrophysicist Hakeem Oluseyi and the world's most brilliant minds tackle the universe's biggest questions that will completely transform how you understand reality on Particles of Thought. Author: GBH Language: en Genres: Astronomy, Chemistry, Science Contact email: Get it Feed URL: Get it iTunes ID: Get it Trailer: Get all podcast data

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How Many Leaves Are on a Tree? | Kirk Johnson
Wednesday, 29 April, 2026

Need to know how many leaves are on that tree? Paleobotanist Dr. Kirk Johnson shares the surprisingly nerdy method—because you never know when leaf math will come in handy.For more, check out the extended interview with Kirk Johnson.Learn more about NOVA and subscribe to our YouTube channel. 

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