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 <a href="https://www.wgbh.org/podcasts/particles-of-thought/extended-interview-fossil-hunting-sinkholes-and-paleobotany-with-kirk-johnson">extended interview</a> with Kirk Johnson.Learn more about <a href="https://www.pbs.org/wgbh/nova/">NOVA</a> and subscribe to our <a href="https://www.youtube.com/channel/UCjHz5SVHeMT0AViCYZvsGDA">YouTube </a>channel.

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.

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 <a href="https://www.wgbh.org/podcasts/particles-of-thought/extended-interview-fossil-hunting-sinkholes-and-paleobotany-with-kirk-johnson" rel="noopener noreferrer">extended interview</a> with Kirk Johnson.Learn more about <a href="https://www.pbs.org/wgbh/nova/" rel="noopener noreferrer">NOVA</a> and subscribe to our <a href="https://www.youtube.com/channel/UCjHz5SVHeMT0AViCYZvsGDA" rel="noopener noreferrer">YouTube </a>channel.&nbsp;

How Many Leaves Are on a Tree? | Kirk Johnson

Ready to break your brain? Particles of Thought, the hit video podcast from the producers of NOVA is back with new mind-expanding conversations with scientists on the edge. Host Hakeem Oluseyi dives into how to hack your own anxiety, the surprising connection between dark matter and black holes, the secrets of animal communication, the hidden geometry shaping our world, and even what it means to be human. Along the way, he tackles big questions, uncovers surprising answers, and opens up entirely new ways to think.Learn more about <a href="https://www.pbs.org/wgbh/nova/">NOVA</a> and subscribe to our <a href="https://www.youtube.com/channel/UCjHz5SVHeMT0AViCYZvsGDA">YouTube </a>channel.

Science

Ready to break your brain? Particles of Thought, the hit video podcast from the producers of NOVA is back with new mind-expanding conversations with scientists on the edge. Host Hakeem Oluseyi dives into how to hack your own anxiety, the surprising connection between dark matter and black holes, the secrets of animal communication, the hidden geometry shaping our world, and even what it means to be human. Along the way, he tackles big questions, uncovers surprising answers, and opens up entirely new ways to think. Learn more about NOVA and subscribe to our YouTube channel.

Ready to break your brain? Particles of Thought, the hit video podcast from the producers of NOVA is back with new mind-expanding conversations with scientists on the edge. Host Hakeem Oluseyi dives into how to hack your own anxiety, the surprising connection between dark matter and black holes, the secrets of animal communication, the hidden geometry shaping our world, and even what it means to be human. Along the way, he tackles big questions, uncovers surprising answers, and opens up entirely new ways to think.Learn more about <a href="https://www.pbs.org/wgbh/nova/" rel="noopener noreferrer">NOVA</a> and subscribe to our <a href="https://www.youtube.com/channel/UCjHz5SVHeMT0AViCYZvsGDA" rel="noopener noreferrer">YouTube </a>channel.&nbsp;

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How Many Leaves Are on a Tree? | Kirk Johnson

How Many Leaves Are on a Tree? | Kirk Johnson

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