Tiny Matters – Details, episodes & analysis
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Science shapes every facet of our lives, but so much of its influence is overlooked or buried in the past. Tiny Matters is an award-winning science podcast from the American Chemical Society about tiny things — from molecules to microbes — that have a big and often surprising impact on society. Every Wednesday, hosts and former scientists Sam Jones and Deboki Chakravarti cover topics from infectious disease to the search for extraterrestrial life, embracing the awe and messiness of science today and throughout history, asking questions like, "how was IVF invented?," "what do glaciers tell us about Earth’s ancient past?," and "why is smallpox the only human infectious disease we’ve eradicated?" New episodes every Wednesday wherever you listen to podcasts.
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See allScore global : 69%
Publication history
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[BONUS] Biodegradable super glue and a severe greenhouse gas that lowers your voice: Tiny Show and Tell Us #30
mercredi 27 août 2025 • Duration 12:10
In this episode of Tiny Show and Tell Us, we talk about a new and exciting biodegradable polymer that seems to outperform commercial super glues. Then we discuss a compound called sulfur hexafluoride (SF6) that is used in high voltage equipment. Not only is SF6 a potent greenhouse gas, if you breathe it in it has the opposite effect of helium — it makes your voice deep. But it can also lead to asphyxiation so you should not breathe it in. We repeat: do not breathe this gas in.
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.
Is ‘mom brain’ … forever?
Episode 91
mercredi 20 août 2025 • Duration 33:43
An estimated 132 million babies were born across the globe last year — really just a drop in the bucket when you think about the over 100 billion babies born since modern humans first lived on Earth 200,000 years ago. And until very recently we had few tools to understand how they were doing in the womb, how they would fare in the days after birth, and how a pregnant person would change physically and mentally not just during pregnancy but in the months and years that followed. Things have changed dramatically, particularly over the last decade, in terms of the care and technology that’s available preconception, during pregnancy, and post-birth. But there is still so much we don’t know about these time periods, both for baby and mom, and many a black box remains.
Send us your science facts, news, or other stories for a chance to be featured on an upcoming Tiny Show and Tell Us bonus episode. And, while you're at it, subscribe to our newsletter!
Links to the Tiny Show and Tell stories are here and here. All Tiny Matters transcripts and references are available here.
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
[BONUS] The FDA’s ban of Red Dye No. 3 and the surprising science of winter roads: Tiny Show and Tell Us #25
mercredi 18 juin 2025 • Duration 17:03
In this episode of Tiny Show and Tell Us, we talk about why the FDA recently banned Red Dye No. 3 and how concerned people should be about its use in food. Then we cover icy winter roads and the fascinating science behind clearing them and taking a more sustainable approach that won’t hurt the environment.
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.
Microplastics and PFAS (aka 'forever chemicals') are everywhere. What does that mean for our bodies and environment?
Episode 29
mercredi 8 mars 2023 • Duration 28:32
Around 400 million tons of plastic are produced annually, which is the estimated weight of all of humanity! Plastic-covered beaches and litter on the side of the road is gross and depressing, but it turns out that stuff is just the visible tip of the iceberg. Plastic breaks down into tiny, tiny pieces that have now been found in almost every ecosystem on the planet—from the bottom of the ocean to mountain ranges in Europe. They’ve also been found in us. This episode of Tiny Matters is all about microplastics and both the molecules that stick to them and the ones they release, like forever chemicals (aka PFAS). Find Imari's upcoming book about plastics here. If you're looking for more info on microplastics monitoring and policy, check out this episode of Stereo Chemistry from our friends at C&EN. If you're in the United States: for data on your region's drinking water go to the Environmental Working Group's website here. The Tiny Show & Tell stories this week can be found here and here. Pick up a Tiny Matters mug here! All Tiny Matters transcripts are available here.
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Detection dogs: Sniffing out explosives, invasive pythons and...disease?
Episode 28
mercredi 22 février 2023 • Duration 29:44
In this episode of Tiny Matters, Sam and Deboki go on a detection dog deep dive. These are dogs who can sniff out basically anything, from explosives to invasive pythons to diseases like cancer and COVID-19. How are they trained? Are certain breeds better at recognizing certain odors? And, come to think of it, how do any of us smell things? Links to the Tiny Show & Tell stories here and here. Pick up a Tiny Matters mug here! All Tiny Matters transcripts are available here.
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
Hank Green on dad emails, the business of scicomm, and the value of niche
mercredi 15 février 2023 • Duration 44:46
Maybe you know Hank Green from Vlogbrothers or CrashCourse. Maybe he taught you something on TikTok. Maybe you’ve read one of his books. Or maybe you know him from about a dozen other things. Hank does a lot, so Sam and Deboki were psyched to get a chance to chat with him. Even more about Hank at https://hankgreen.com/ Episode transcripts 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.
The hunt for a rare microorganism
Episode 27
mercredi 8 février 2023 • Duration 27:05
For centuries, scientists have looked through microscopes to witness the worlds of tiny creatures and cells that exist all around us. In this episode, Sam and Deboki learn what it takes to hunt down a rare microbe and why it matters for how we understand evolution and the connections between species today. Links to the Tiny Show & Tell stories here and here. Episode transcripts 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.
Tell us what YOU want to learn about in 2023!
mercredi 25 janvier 2023 • Duration 01:50
Over the last year we've talked about the microbiome, the evolution of lactose intolerance, why we've only eradicated one infectious disease, if sugar is actually addictive, vampire science, and so, so much more. There are lots of tiny things out there that have a big impact. So what do YOU want to hear about? What science questions are on your mind? Let us know! tinymatters@acs.org
See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.
False memories, a surprising Civil War corpse, weekly dino fossil discoveries, and more! Faves from the first year of Tiny Matters
Episode 26
mercredi 11 janvier 2023 • Duration 26:21
Today, we're taking a look back at a handful of our favorite episode moments from the first year of Tiny Matters. Want to tell us your favorite? Have suggestions for topics for 2023? Email us! tinymatters@acs.org. Here's the article in The Conversation that Deboki mentions. Episode transcripts 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.
Radiolab's Latif Nasser on his love of science history, storytelling, and Wikipedia rabbit holes
Episode 25
mercredi 28 décembre 2022 • Duration 01:08:37
In the final episode of Tiny Matters for 2022, Sam and Deboki chat with Latif Nasser about his experience as the co-host and director of research at Radiolab, his love of science history and telling surprising stories about everyday things, and much, much more. Episode transcripts 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.









