Tiny Matters

In the early 1930s, a “new and improved” eyelash dye called Lash Lure blinded more than a dozen women, ultimately forcing the FDA to pass new regulations on cosmetics. Nearly a century later, beauty remains far safer than it was in the past, but you could argue that beauty marketing has become far more insidious, with vague language and chemophobic claims to push consumers toward products. In this episode, we chat with cosmetic chemist and science communicator Michelle Wong to unpack the booming “clean beauty” industry, including a conversation about parabens and fragrances and how chemophobia (a fear of chemicals) early in life can become a gateway to broader anti-science thinking, including anti-vax. You can follow Michelle at @LabMuffinBeautyScience on Instagram, TikTok, and YouTube where she makes longer explainer videos. Check out Wow if True here or wherever you listen to podcasts!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.

We want to recommend a new podcast called The Interface. It's the BBC's fiercly informed, fast and funny take on how tech is impacting all of us. We have become regular listeners and hope you enjoy it too!

Have you checked out ACS' new podcast Chain Reaction? Today we're bringing Tiny Matters listeners one of our favorite episodes! Chemistry doesn’t just shape conflict — conflict shapes chemistry. And at no time in history is that more apparent than during the two world wars. Historian Alison McManus recounts how the race to weaponize toxic gases like chlorine and mustard gas transformed chemists into key military players, spurred industrial growth, and ignited an international arms race during WWI. However, some battles of the world wars weren’t waged against an opposing army, but against diseases that soldiers caught while in combat. Journalist Karen Masterson reveals how WWII triggered a massive scientific mobilization — a secret, high‑stakes search for synthetic quinine and antimalarial drugs that would ultimately help seed the modern pharmaceutical industry. Packed with espionage, innovation, and ethical dilemmas, this episode uncovers how war accelerated chemistry in ways that still shape science today.Available wherever you get podcasts! Transcripts and episode sources at acs.org/chainreactionSee Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.

Steven Ray Morris, podcast producer and dinosaur enthusiast behind See Jurassic Right, presents a chilly trip through Antarctic dinosaurs and how polar fossils reshape dinosaur stories. The conversation also covers a twice‑yearly injectable HIV prevention drug, Lenacapavir, and a primer on blood flow restriction therapy for rehab and strength rebuilding.

In this episode, we dive into the murky, high‑stakes world of deep-sea mining — the practice of extracting valuable metals from the ocean floor. Deep-sea mining has been “just around the corner” for decades. So what’s the holdup? With the help of deep-sea ecologist Andrew Thaler and oceanography researcher Michael Dowd, we discuss what makes the deep ocean such a challenging place to operate, and unpack why polymetallic nodules have drawn so much interest, and why removing them could permanently alter ecosystems we barely understand. The episode also looks ahead, asking whether deep-sea mining is even necessary and what it could mean not just for Earth’s oceans, but for future resource extraction in places like Antarctica and the Moon. It’s a story about science, but also Victorian research ships, CIA cover stories, “shark potatoes,” and vast, untouched ecosystems. Check out Dreaming Against the Machine here or wherever you listen to podcasts.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!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.

In this episode of Tiny Show and Tell Us, we trace the history of Turner Syndrome — from early clinical observations to the discovery of its chromosomal cause — highlighting how scientists began connecting symptoms to genetics long before DNA was fully understood. Then we follow up on a listener note about lab safety by explaining, at a molecular level, why dimethylmercury and prions are so dangerous to the human body. Ending on something more hopeful, we explore new research showing how engineered yeast could help give honey bees the nutrients they need to thrive. Team bees!Check out American Medieval here or wherever you listen to podcasts!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.

A deep dive into how soap chemistry shows up where you least expect it. Ancient ash-and-oil recipes meet modern saponification and hard-water scum. Scientific detectives trace lead and zinc soaps that alter famous paintings’ colors and textures. Chemistry and conservation collide as researchers weigh restoration against an artwork’s material history.

In this episode of Tiny Show and Tell Us, we explore the strange world of camelid antibodies—tiny, heavy-chain-only immune molecules that turned out to be incredibly useful for research and medicine. Then we chat about archaeochemistry and how pristine white Greco-Roman statues were once "garishly" painted. Using modern chemical techniques, scientists are revealing traces of vivid pigments like Egyptian blue. But how definitive are these reconstructions? Drama!Check out Wow if True here or wherever you listen to podcasts!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.

Fertilizer… boring? Not on our watch! In this episode of Tiny Matters, we trace the history of fertilizer from the ‘Guano Wars’ to the invention of the Haber-Bosch process, one of the most impactful chemical breakthroughs in human history. Today, scientists and communities are rethinking how we handle nutrients, and asking: could our own urine help close the nutrient loop? We chat with chemist Leila Duman about why nitrogen is so hard to “fix,” how industrial fertilizer feeds billions (while unfortunately polluting waterways), and why the Haber-Bosch process is still essentially perfect. Then we head to Vermont’s Rich Earth Institute, where researchers are turning human urine into safe, effective fertilizer and reimagining waste as a resource.Check out Pale Blue pod!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!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.

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.Check out Simple and Clean here or wherever you listen to podcasts!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.