The Weirdest Thing I Learned This Week

Popular Science
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Mar 25, 2026 • 1h 18min

Killer Demon Core, Victorian Theater-Kid Ghosts, Louis Pasteur's Secrets

Jess brings adef and jacksonparodi on the show this week to discuss how one sphere killed two men in a matter of days, why folks in Victorian Australia used glowing paint to transform into ghosts, and how Louis Pasteur had more aura than ever imaginable. adef on Youtube: https://www.youtube.com/@adef adef on Twitch: https://www.twitch.tv/adef Jackson on Youtube: https://www.youtube.com/@JacksonParodi Jess on Youtube: https://www.youtube.com/@JessCapricorn Jess on Twitch: https://www.twitch.tv/jesscapricorn The Weirdest Thing I Learned This Week is a podcast by Popular Science. Share your weirdest facts and stories with us in our ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Facebook group⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ or ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠tweet at us⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠! ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Click here to learn more about all of our stories! ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Links to Rachel's TikTok, Newsletter, Merch Store and More: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://linktr.ee/RachelFeltman⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠  Rachel now has a Patreon, too! Follow her for exclusive bonus content: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.patreon.com/RachelFeltman⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Link to Jess' Twitch: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.twitch.tv/jesscapricorn⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Link to all of Jess' content: ⁠⁠⁠⁠⁠⁠⁠https://www.jesscapricorn.com/⁠⁠⁠⁠⁠⁠⁠ -- Follow our team on Twitter Rachel Feltman: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.twitter.com/RachelFeltman⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Produced by Jess Boddy: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.twitter.com/JessicaBoddy⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Popular Science: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.twitter.com/PopSci⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Theme music by Billy Cadden: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://open.spotify.com/artist/6LqT4DCuAXlBzX8XlNy4Wq?si=5VF2r2XiQoGepRsMTBsDAQ⁠⁠⁠⁠⁠⁠⁠⁠⁠ Right now, our listeners get an additional 15% off any annual membership at https://MASTERCLASS.com/WEIRDEST Learn more about your ad choices. Visit podcastchoices.com/adchoices
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Mar 11, 2026 • 1h 1min

REVISITING Art Crime Doesn't Pay, Canines Cooking Meat, Eggs Gone Wrong

⁠⁠While Rachel is on parental leave, here's a vintage episode from our vault! Rachel, Sara, and comedian Josh Gondelman discuss dogs cooking in kitchens, chickens laying eggs inside themselves, and one of the most peculiar art heists in history. The Weirdest Thing I Learned This Week is a podcast by Popular Science. Share your weirdest facts and stories with us in our ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Facebook group⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ or ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠tweet at us⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠! ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠Click here to learn more about all of our stories! ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Links to Rachel's TikTok, Newsletter, Merch Store and More: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://linktr.ee/RachelFeltman⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠  Rachel now has a Patreon, too! Follow her for exclusive bonus content: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.patreon.com/RachelFeltman⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Link to Jess' Twitch: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://www.twitch.tv/jesscapricorn⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Link to all of Jess' content: ⁠⁠⁠⁠⁠⁠⁠https://www.jesscapricorn.com/⁠⁠⁠⁠⁠⁠⁠ -- Follow our team on Twitter Rachel Feltman: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.twitter.com/RachelFeltman⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Produced by Jess Boddy: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.twitter.com/JessicaBoddy⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Popular Science: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.twitter.com/PopSci⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠ Theme music by Billy Cadden: ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠https://open.spotify.com/artist/6LqT4DCuAXlBzX8XlNy4Wq?si=5VF2r2XiQoGepRsMTBsDAQ⁠⁠⁠⁠⁠⁠⁠⁠⁠ Thanks to our Sponsors: Buy or sell your next car today with CarGurus at https://cargurus.com Learn more about your ad choices. Visit podcastchoices.com/adchoices
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Feb 25, 2026 • 1h 7min

Atomic Priesthood, Space Smells Like Beef, the Power of Pee Fuel

Misty, a tech sales pro and amateur perfumer intrigued by language, brings ideas about nuclear waste warnings and ritualized long-term signaling. Lindsay, a full-time Twitch streamer and scent researcher, explains why space smells like beef and how chemists recreate it. They also touch on why having to pee can sharpen focus and improve game performance. Short, odd, and curiosity-sparking conversations.
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Feb 11, 2026 • 1h 3min

REVISITING Olympic Weirdness: Barefoot Marathons, Medals for Artwork, Pistol Dueling

They swap bizarre Olympic stories like a barefoot marathon winner and the cobblestone Rome run. They tease medals once awarded for artwork and how those contests fizzled. They dig into early Games chaos with odd sports like pistol dueling, motorboating, and pigeon events. They trace how amateurism rules and host-driven quirks shaped what made the program.
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15 snips
Jan 28, 2026 • 1h 9min

Beaver Skull Obsession, Aussie Widowmakers, Koalas Eating $#!%

Ricky Peacock, Twitch streamer and creator, joins to riff on wild Australian ecology. He talks about koalas eating their moms' fecal pap to seed gut microbes. They also cover eucalyptus 'widowmakers' that drop branches and the oil that fuels mega-fires. Plus a dive into beavers reshaping landscapes to slow wildfires.
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Dec 17, 2025 • 58min

Bat-Devouring Rodents, Penguin Retirement Home, Chicago "Rat" Hole

Kendra Pierre-Louis, a seasoned journalist formerly with Popular Science and Bloomberg, dives into fascinating tales. She reveals shocking footage of rats preying on bats, raising questions about disease transmission. Jess Boddy shares the story of a viral 'rat hole' in Chicago, analyzing its community impact while a scientific study unveils the truth behind it. Meanwhile, Rachel Feltman introduces a heartwarming penguin retirement home at the New England Aquarium, emphasizing the need for elder care among aging African penguins.
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Dec 3, 2025 • 57min

Vintage Antivaxxers, Horror Flick Psychology, Robin-Eating Bats

Colton Scrivner, a psychologist and author of *Morbidly Curious*, dives into the fascinating psychology behind horror fans. He discusses how empathy plays a unique role in enjoying scary narratives, pointing out that horror enthusiasts actually score higher in cognitive empathy. Meanwhile, Sara Kiley explores the shocking behavior of bats that hunt and eat birds mid-flight, revealing their predatory tactics. Rachel shares the bizarre history of the early anti-vaccine movement, highlighting the striking propaganda art used to oppose vaccination.
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13 snips
Nov 19, 2025 • 1h 18min

Footless Goose Murder, Sex in Space, Viking Sicko Mode, Sports Bra Tech

Dive into a live discussion featuring an avian mystery as a footless goose's untimely end sparks intrigue. Learn why having sex in space presents bizarre challenges, from blood flow problems to unexpected viral reactivations. Explore the groundbreaking invention of the sports bra and its surprising effects on lung function. Plus, discover how modern pre-workout rituals parallel the wild behaviors of Viking berserkers. It's a rollercoaster of weird and fascinating facts that keep you entertained!
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9 snips
Nov 12, 2025 • 15min

Check it out: 'Ask Us Anything' from Popular Science. On this episode, GOOSEBUMPS

Discover the fascinating science behind goosebumps, from their biological triggers to their role in animal survival. Learn how emotions like fear and awe can spark this unique response in humans. Dive into the origins of the term and whether birds experience them too. The discussion includes a special feature with R.L. Stine, who shares insights on the title of his famous series and hints at his upcoming thriller. It's an entertaining exploration of a curious human phenomenon!
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12 snips
Nov 5, 2025 • 1h 4min

What Rats are REALLY Saying, Cosmic Caffeine, Lamarck was RIGHT?!

Tom Lum, a science communicator and video producer, dives into the fascinating world of urban rats and their unexpected communication methods. He reveals how these clever creatures adapt to their noisy environments, utilizing complex vocalizations that change with context, like increasing volume during sirens. The discussion also touches on Lamarckian inheritance, revealing surprising exceptions in evolution, and Rachel shares how astronomers calculated the universe's average color, humorously dubbed Cosmic Latte. Tune in for a blend of science and surprising facts!

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