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How the Square Root of 2 Became a Number

June 21, 2024

Useful mathematical concepts, like the number line, can linger for millennia before they are rigorously defined.

How Is Science Even Possible?

June 20, 2024

How are scientists able to crack fundamental questions about nature and life? How does math make the complex cosmos understandable? In this episode, the physicist Nigel Goldenfeld and co-host Steven Strogatz explore the deep foundations of the scientific process.

Across a Continent, Trees Sync Their Fruiting to the Sun

June 18, 2024

European beech trees more than 1,500 kilometers apart all drop their fruit at the same time in a grand synchronization event now linked to the summer solstice.

The Enduring Mystery of How Water Freezes

June 17, 2024

Making ice requires more than subzero temperatures. The unpredictable process takes microscopic scaffolding, random jiggling and often a little bit of bacteria.

The Brainstem Fine-Tunes Inflammation Throughout the Body

June 14, 2024

The evolutionarily ancient part of the brain that controls breathing and heart rate also regulates the immune system — a discovery about the brain-body axis made by experts on taste.

Computation Is All Around Us, and You Can See It if You Try

June 12, 2024

Computer scientist Lance Fortnow writes that by embracing the computations that surround us, we can begin to understand and tame our seemingly random world.

The New Math of How Large-Scale Order Emerges

June 10, 2024

The puzzle of emergence asks how regularities emerge on macro scales out of uncountable constituent parts. A new framework has researchers hopeful that a solution is near.

In Highly Connected Networks, There’s Always a Loop

June 7, 2024

Mathematicians show that graphs of a certain common type must contain a route that visits each point exactly once.

Can Psychedelics Improve Mental Health?

June 6, 2024

Research suggests that psychedelic drugs can reopen critical periods of brain development to create opportunities for re-learning and psychological healing. In this episode, co-host Janna Levin speaks with Gül Dölen, a neuroscientist studying the therapeutic potential of psychedelic substances.

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