In this episode of Tiny Show and Tell Us, we explore a listener's experience with peanut allergy immunotherapy — what it is, how the therapy works, and the odd and fascinating history of allergy treatments, including a 19th‑century scientist who shoved grass pollen up his own nose. Then we chat about “reef balls” made of oyster shells and concrete. These mini artificial reefs are being used to restore marine habitats and, in some cases, also hold cremated remains.

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In this special crossover episode, Tiny Matters welcomes Alexis Pedrick, host of Distillations from the Science History Institute. You’ll hear the Distillations episode “The Mothers of Gynecology” — a powerful investigation into the racist origins of gynecology and the ongoing maternal health care crisis that disproportionately affects Black mothers. Through interviews with historians, clinicians, midwives, doulas, and public health researchers, the episode traces how racist myths about Black bodies — especially beliefs about pain tolerance — continue to shape medical care and outcomes. Following the episode, we unpack some of what you’ll hear, from the horrific exploitation of enslaved women by J. Marion Sims, to modern-day disparities that affect even the wealthiest, most famous Black mothers, including Beyoncé and Serena Williams.

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Chain Reaction is a new podcast from the American Chemical Society that links chemistry’s past to its future, revealing how this ever‑evolving science shapes the world around us, from the materials we use every day to the environment that we depend on. Each episode brings fresh perspectives and personal stories from chemists, engineers, and other scientists, as well as historians who guide us through pivotal moments in chemistry’s history. Together, we’ll uncover chemistry’s surprising connections, explore its interdisciplinary impact, and see how past discoveries set off the breakthroughs of today and the future.

Whether you’re a student, an experienced scientist, or simply curious, Chain Reaction will show you how chemistry fits into the bigger picture — and why it matters now more than ever. Subscribe wherever you listen to podcasts! acs.org/chainreaction

Exec producer: Sam Jones

Producer: Margot Wohl

Researcher: Bec Roldan

Production support: Michael David and Matthew Radcliff

Cover art: Joe Butera

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In this episode of Tiny Show and Tell Us, we go from nerdy house-party physics to the brutal realities of morning sickness (can you say range!). First, we unpack what 5D data storage is and debate what we’d personally toss into the “Memory of Mankind” salt mine in Austria. Then we tackle a listener’s question about whether science has any updates on what causes severe morning sickness.

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In 2019, Nathan Hudson-Peacock was serving as an expedition doctor to a group hiking in the Indian Himalayas. At around 17,000 feet, a climber suddenly went from having a mild headache to a life‑threatening cerebral edema. On top of that, a storm was closing in. So, what did he do? How do expedition doctors keep people alive in the harshest places on Earth? Tune in to this week’s episode to find out. In it, we chat with Nathan as well as high altitude physician Monica Piris, who has spent much of her time on Everest. We dig into the world of expedition medicine: the preparation, the danger, the breathtaking environments, and the moments that can reshape your understanding of the planet and the impact of climate change.

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In this episode of Tiny Show and Tell Us, we talk about the crafty corvids that steal anti‑bird spikes to build chaotic, spiky nests and “Mitochondrial Eve” — the most recent common maternal ancestor of modern humans. Get ready for stories of sandwich‑stealing gulls, Deboki being held hostage by a peacock, and the Mitochondrial Eve/Y Chromosomal Adam romcom no one asked for.

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For over a thousand years, humans have been harnessing wind energy. It may have begun with small, grain‑grinding windmills in ancient Persia, but today you might spot Hoover‑Dam‑sized offshore turbines as you drive along the east coast. How did we get here? In this episode of Tiny Matters, we explore the first electric wind turbines built in the late 1800s, how government policies in the 1970s and ’80s shaped the modern wind industry, and why giant offshore wind farms are suddenly in the news. We also clear up misinformation stemming from a Hollywood blockbuster as well as what we know about the impact of wind farms on whales, birds and bats.

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In this episode of Tiny Show and Tell Us, we explore a listener’s tip about a new source of tire rubber — the Russian dandelion — and the science behind what makes it such an incredible and sustainable source of natural latex rubber. Then we answer a listener’s question about a vaccine for fentanyl that will stop the drug from reaching the brain, preventing overdose.

We need your stories — they're what make these bonus episodes possible! Write in to tinymatters@acs.org *or fill out this form* with your favorite science fact or science news story for a chance to be featured.

A transcript and references for this episode can be found at acs.org/tinymatters.

See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.