Forever Fresh
31 January 2025 - 28 minsWe eat apples in the summer and enjoy bananas in the winter. When we do this, we go against the natural order of life which is towards death and decay. What gives? This week, Latif Nasser spoke with Nicola Twilley, the author of Frostbite: How Refrigeration Changed Our Food, Our Planet, and Ourselves. Twilley spent over a decade reporting about how we keep food alive as it makes its way from the farm to our table. This conversation explores the science of cold, how fruits hold a secret to eternal youth, and how the salad bag, of all things, is our local grocery store’s unsung hero.
Special thanks to Jim Lugg and Jeff Wooster
EPISODE CREDITS:
Reported by Latif Nasser and Nicola Twilley
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Time is Honey
In the early 2000s, Sunil Nakrani felt stuck. Back then, websites crashed all the time. When Sunil noticed this, he decided he was going to fix the internet. But after nearly a year of studying the architecture of the web, he was no closer to an answer. In desperation, Sunil sent out a raft of cold emails to engineering professors. He hoped someone, anyone, could help him figure this out. Eventually, he learned that the internet could only be fixed if he paid attention to the humble honeybee. This is the story of the Honeybee Algorithm: How tech used honeybees to build the internet as we know it. Special thanks to John Bartholdi, John Vande Vate, Sammy Ramsey, James Marshall, Steve Strogatz, Duc Pham, and Heiko Hamann. We found out about this story thanks to our friends at AAAS, who run the one and only Golden Goose Awards. The award goes to government funded science that sounds trivial or bizarre, but goes on to change the world. The Honeybee Algorithm won a Golden Goose Award back in 2016 (https://www.goldengooseaward.org/01awardees/honey-bee-algorithm). Thank you to our friends there: Erin Heath, Gwendolyn Bogard, Valeria Sabate, Joanne Padron Carney, and Meredith Asbury. EPISODE CREDITS: Reported by - Latif Nasserwith help from - Maria Paz GutiérrezProduced by - Maria Paz Gutiérrez, Annie McEwen and Pat Waltersand Edited by - Pat Walters EPISODE CITATIONS: Videos - Golden Goose Award video about 2016 winners (https://zpr.io/eXwTJKGL6F8S) Books - The Wisdom of the Hive: The Social Physiology of Honeybee Colonies (https://www.hup.harvard.edu/books/9780674953765) by Thomas D. Seeley (1995, Harvard University Press) Piping Hot Bees & Boisterous Buzz-Runners: 20 Mysteries of Honey Bee Behavior Solved (https://zpr.io/tNDqkw372Rhr) by Thomas D. Seeley And, Paths of Pollen (https://zpr.io/cqRPpAdGRwMi) by Stephen Humphrey. One of our former transcribers who we recently learned had hidden talents far beyond the invaluable work they did for us. This book is only tangentially related to the content in the episode, but super cool in its own right. Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing [email protected]. Leadership support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
38 mins
13 February Finished
Kleptotherms
In this episode, we break the thermometer and watch the mercury spill out as we discover that temperature is far stranger than it seems. We first ran this episode in 2021: Five stories that run the gamut from snakes to stars. We start out underwater, with a species of snake that has evolved a devious trick for keeping warm. Then we hear the tale of a young man whose seemingly simple method of warming up might be the very thing making him cold. And Senior Correspondent Molly Webster blows the lid off the idea that 98.6 degrees Fahrenheit is a sound marker of health. Reported by - Lulu Miller and Molly WebsterProduced by - Becca Bressler, Lulu Miller and Molly Websterwith help from - Carin LeongFact-checking by - Emily Krieger Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing [email protected] support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
44 mins
6 February Finished
Song of the Cerebellum
One spring evening in 2024, a science journalist named Rachel Gross bombed at karaoke. The culprit was a bleed in a fist-sized clump of neurons tucked down in the back of her brain called the cerebellum. A couple weeks later, her doctors took a bit of it out, assuring her it was just helping her with motor coordination — she might be a bit clumsy for a while, but she’d still be herself. But afterwards, she didn't feel like herself. So she dove into the dusty basement of the brain (and brain science) to figure out why. What Rachel found was a burgeoning new frontier in neuroscience. We learn what singing Shakira on stage has to do with reaching for a cup of coffee — and how the surprising relationship between the two is making us rethink what we think about thinking. Special thanks to Warzone Karaoke at Branded Saloon, Dr. Joanne Loewy and the Singing Together, Measure by Measure choir at the Louis Armstrong Center for Music and Medicine (http://musicandmedicine.org/) at Mount Sinai Union Square, Dag Spicer and the Computer History Museum, Désirée Lie, Mark Gross, Daniel A. Gross, Brittany Aguilar, and, of course, Shakira. EPISODE CREDITS: Reported by - Rachel GrossProduced by - Sindhu GnanasambandanEPISODE CITATIONS: Articles - “Ignoring the cerebellum is hindering progress in neuroscience.” (https://pubmed.ncbi.nlm.nih.gov/39934082/), by Wang et al, 2025 “The cerebellum and cognition.” (https://pubmed.ncbi.nlm.nih.gov/29997061/), by Schmahmann JD. Neurosci Lett. 2019 “How did brains evolve?” (https://pubmed.ncbi.nlm.nih.gov/11805823/), by Barton RA., Nature. 2002 Books - Vagina Obscura (https://www.rachelegross.com/book), by Rachel E. Gross Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing [email protected]. Leadership support for Radiolab’s science programming is provided by the Gordon and Betty Moore Foundation, Science Sandbox, a Simons Foundation Initiative, and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
42 mins
30 January Finished
You and Me and Mr. Self-Esteem
Most of us spend some part of our lives feeling bad about ourselves and wanting to feel better. But this preoccupation is a surprisingly new one in the history of the world, and can largely be traced back to one man: a rumpled, convertible-driving California state representative named John Vasconcellos who helped spark a movement that took over schools, board rooms, and social-service offices across America in the 1990s. This week, we look at the rise and fall of the self-esteem movement and ask: is it possible to raise your self-esteem? And is trying to do so even a good idea? Special thanks to big thank you to the University of California, Santa Barbara Library for use of audio material from their Humanistic Psychology Archives and to their staff for helping located so many audio recordings. EPISODE CREDITS: Reported by - Heather Radke and Matt Kielty Produced by - Matt KietlyFlute performance and compositions by - Ben BatchelderVoiceover work by - Dann FinkFact-checking by - Anna Pujol-Mazzini and Angely Mercadoand Edited by - Pat Walters EPISODE CITATIONS: Articles - UCSB Humanistic Psychology Archive (https://zpr.io/HfVjUmvcVevE) Books - Selfie: How We Became So Self-Obsessed and What It's Doing to Us (https://zpr.io/eGRyqz9zNQHu) by Will Storr. Counterpoint, 2018. A Liberating Vision (https://zpr.io/tJn7BR5m84fv) by Vasconcellos, John. Impact Publishers, Inc., 1979 The Therapeutic State (https://zpr.io/tJn7BR5m84fv) by Nolan, James, Jr. NYU Press, 1998 Sign up for our newsletter. It includes short essays, recommendations, and details about other ways to interact with the show. Sign up (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing [email protected] support for Radiolab’s science programming is provided by the Gordon and Betty Moore Foundation, Science Sandbox, a Simons Foundation Initiative, and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
1 hour 17 mins
23 January Finished
The Punchline
This episode, first aired in 2019, brings you the story of John Scott, the professional hockey player that every fan loved to hate. A tough guy. A brawler. A goon. But when an impish pundit named Puck Daddy called on fans to vote for Scott to play alongside the world’s greatest players in the NHL All-Star Game, Scott found himself facing off against fans, commentators, and the powers that be. Was this the realization of Scott’s childhood dreams? Or a nightmarish prank gone too far? Today on Radiolab, a goof on a goon turns into a parable of the agony and the ecstasy of the internet, and democracy in the age of Boaty McBoatface. Special thanks to Larry Lynch and Morgan Springer. Check out John Scott's "Dropping the Gloves" podcast (https://www.droppingthegloves.com/) and his book (https://www.simonandschuster.com/books/A-Guy-Like-Me/John-Scott/9781501159657) "A Guy Like Me". EPISODE CREDITS: Reported by - Latif NasserProduced by - Matt Kielty Original music and sound design contributed by -John Dryden, Thee Oh Sees, Weedeater and Bongzilla. Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing [email protected] support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
50 mins
16 January Finished
Brain Balls
When neuroscientist Madeline Lancaster was a brand new postdoc, she accidentally used an expired protein gel in a lab experiment and noticed something weird. The stem cells she was trying to grow in a dish were self-assembling. The result? Madeline was the first person ever to grow what she called a “cerebral organoid,” a tiny, 3D version of a human brain the size of a peppercorn. In about a decade, these mini human brain balls were everywhere. They were revealing bombshell secrets about how our brains develop in the womb, helping treat advanced cancer patients, being implanted into animals, even playing the video game Pong. But what are they? Are these brain balls capable of sensing, feeling, learning, being? Are they tiny, trapped humans? And if they were, how would we know? Special thanks to Lynn Levy, Jason Yamada-Hanff, David Fajgenbaum, Andrew Verstein, Anne Hamilton, Christopher Mason, Madeline Mason-Mariarty, the team at the Boston Museum of Science, and Howard Fine, Stefano Cirigliano, and the team at Weill-Cornell. EPISODE CREDITS: Reported by - Latif Nasserwith help from - Mona MadgavkarProduced by - Annie McEwen, Mona Madgavkar, and Pat Walterswith mixing help from - Jeremy BloomFact-checking by - Natalie Middleton and Rebecca Randand Edited by - Alex Neason and Pat Walters EPISODE CITATIONS: Videos - “Growing Mini Brains to Discover What Makes Us Human,” Madeline Lancaster’s TEDxCERN Talk, Nov 2015 (https://zpr.io/6WP7xfA27auR) Brain cells playing Pong (https://zpr.io/pqgSqguJeAPK) Reuters report on CL1 computer launch in March 2025 (https://zpr.io/cdMf8Yjvayyd) Articles - Madeline Lancaster: The accidental organoid – mini-brains as models for human brain development (https://zpr.io/nnwFwUwnm2p6), MRC Laboratory of Molecular Biology What We Can Learn From Brain Organoids (https://zpr.io/frUfsg4pxKsb), by Carl Zimmer. NYT, November 6, 2025 Ethical Issues Related to Brain Organoid Research (https://zpr.io/qyiATHEhdnSa), by Insoo Hyun et al, Brain Research, 2020 Brain organoids get cancer, too, opening a new frontier in personalized medicine (https://zpr.io/nqMCQ) STAT Profile of Howard Fine and his lab’s glioblastoma research at Weill Cornell Medical Center: By re-creating neural pathway in dish, Stanford Medicine research may speed pain treatment (https://zpr.io/UnegZeQZfqn2) Stanford Medicine profile of Sergiu Pasca’s research on pain in organoids A brief history of organoids (https://zpr.io/waSbUCSrL9va) by Corrò et al, American Journal of Physiology - Cell Physiology, Books - Carl Zimmer Life’s Edge: The Search for What it Means to be Alive (https://carlzimmer.com/books/lifes-edge/) Sign up for our newsletter!! It includes short essays, recommendations, and details about other ways to interact with the show. Signup (https://radiolab.org/newsletter)! Radiolab is supported by listeners like you. Support Radiolab by becoming a member of The Lab (https://members.radiolab.org/) today. Follow our show on Instagram, Twitter and Facebook @radiolab, and share your thoughts with us by emailing [email protected] support for Radiolab’s science programming is provided by the Simons Foundation and the John Templeton Foundation. Foundational support for Radiolab was provided by the Alfred P. Sloan Foundation.
41 mins
9 January Finished