Stereo Chemistry shares voices and stories from the world of chemistry. The show is created by the reporters and editors at Chemical & Engineering News (C&EN), an independent news outlet published by the American Chemical Society.
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From antibiotic resistance to Roaring Twenties poisonings to body farms, you can find chemistry—and a good story—anywhere. Every month writer and host, Sam Jones, PhD, takes on a chemistry tale you didn't know you needed to know.
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C&EN Uncovered: Solvent Waste Levels, EPA Regulations, and Disposal
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On average, from 2011 to 2021, academic labs generated around 4,300 metric tons of hazardous waste each year. One of the largest lab-used solvents discarded is dichloromethane and more than half of that waste ends up burned. In today’s episode, policy reporters Krystal Vasquez and Leigh Krietsch Boerner dive into the processes academic labs use to …
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C&EN Uncovered: Ongoing tragedies in Flint and East Palestine
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Tragedies in the communities of Flint, Michigan, and East Palestine, Ohio, continue to affect residents 10 years and 1 year on, respectively, from the initial events. Residents of both cities continue to rebound and rebuild despite ongoing issues revolving around the toxic chemicals that were introduced to their towns through human decisions. C&EN …
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C&EN Uncovered: Can ‘forever chemicals’ be destroyed?
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Per- and polyfluoroalkyl substances, a class of chemicals known as PFAS, are often called “forever chemicals” because of how long they persist in the environment. They are prevalent in drinking water and have been linked to negative health outcomes. A slew of cleantech start-ups are cropping up with the aim of breaking down and destroying PFAS mole…
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C&EN Uncovered: The small-molecule drug renaissance
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As the science of drug discovery has grown in scale and gotten more complicated, so have the drug molecules themselves. But there’s a promising class of drugs made of just a handful of atoms that punch above their weight by leveraging the natural chemistry of the cell. Recent discoveries have opened up a new era of pharmaceutical chemistry that som…
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C&EN Uncovered: The ocean floor is littered with valuable minerals. Should we go get them?
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Resting on the bottom of the ocean are potato-sized nodules of valuable minerals that are more or less up for grabs. Multiple corporations and some nations are racing to build deep-sea drones that can withstand the extreme conditions at the seafloor and bring these 1-20 cm nodules to eager buyers on the surface. Many of the metals in these nodules …
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C&EN Uncovered: The race to report on the Nobel Prizes
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The Nobel Prize announcements are big events at Chemical & Engineering News. But we find out the winners at the same time as everyone else. Then, the race is on for our reporters. This year, staffers Laurel Oldach and Mitch Jacoby took on the task of covering the science prizes. In this episode, they reflect on this year’s winning research in chemi…
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C&EN Uncovered: Looking back on 100 years of chemistry
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The first issue of C&EN was published in 1923 with the stated purpose of “the promotion of research, the development of the chemical industry, and the welfare of the chemist.” The world of chemistry has grown a lot since then, and the magazine has been there to report on it all. To celebrate our 100th anniversary, C&EN reporter and informal histori…
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Jennifer DiStefano and Jared Mondschein on the transition from the bench to the policy office
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Early-career scientists are increasingly gravitating toward science policy, but the transition from the research bench to the policy office can be a tricky one. What can that path look like, and how can chemistry knowledge translate into a successful science policy career? In this bonus episode of C&EN’s Bonding Time, Mark Feuer DiTusa sits down wi…
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C&EN Uncovered: Making hydrogen is easy; making it green is a challenge
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Hydrogen might be the key to a clean energy future, but only if it can be made without fossil fuels. Most hydrogen today is made from methane. With generous government tax credits and enthusiasm for sustainable technology, the race is on for green hydrogen. Craig Bettenhausen, our usual host, guides C&EN associate editor Gina Vitale through the hyd…
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Mining metals and minerals from seawater
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The modern world runs on electronic devices and energy systems that are powered by valuable elements such as lithium and uranium. There are a limited number of terrestrial mines that produce energy-critical elements, which makes the supply of these materials prone to disruption. So researchers are looking to an unconventional source: seawater. Almo…
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C&EN Uncovered: Can tires turn green?
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Be they powered by fossil fuels, batteries, or hydrogen, cars are here to stay. So what can be done to make tires greener? In this episode of Stereo Chemistry, C&EN reporters Alex Scott and Craig Bettenhausen look at where the rubber meets the road, literally. Scott examined efforts to make tires more sustainable in a recent cover story for C&EN. H…
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Here’s what happens when wastewater treatment facilities fail
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When two wastewater treatment facilities in Baltimore, Maryland, broke down in early 2021, the surrounding waterways began filling up with sewage. In this episode of Stereo Chemistry, C&EN business reporter Craig Bettenhausen takes the pod to visit the Back River Plant and Patapsco Plant in the Chesapeake Bay watershed to demystify how these facili…
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Bonus: Executive producer Kerri Jansen hands over the mic
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Stereo Chemistry’s longtime host Kerri Jansen is stepping down from her role as executive producer of the podcast. Jansen has been with Stereo Chemistry since it began in 2018, and has played an integral role in the production of C&EN’s flagship podcast. In this bonus episode, Jansen talks with C&EN’s interim coeditors for audio & video, Ariana Rem…
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C&EN Uncovered: The battle for Lake Maurepas
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Carbon capture and sequestration is the trapping of CO2 emitted by industrial processes and depositing it beneath the Earth’s surface. Spurred on by tax credits offered by recent federal legislation, companies are racing to implement the technology in geologically suitable locations such as in Louisiana.However, the community around Lake Maurepas, …
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C&EN Uncovered: Lithium iron phosphate comes to North America
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Lithium iron phosphate (LFP) batteries are cheaper, safer, and longer lasting than batteries made with nickel- and cobalt-based cathodes. In China, the streets are full of electric vehicles using this technology. But LFP never caught on as a chemistry for electric vehicle batteries in North America. In this episode, C&EN reporters Craig Bettenhause…
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Microplastics pollute our drinking water: What are the risks?
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Researchers reported finding microplastics in drinking water nearly 5 years ago, prompting California lawmakers to require monitoring of the state’s drinking water for the tiny particles. But in 2018, there were no standard methods for analyzing microplastics. So California regulators reached out to chemists and toxicologists from all sectors to de…
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C&EN Uncovered: What exascale computing could mean for chemistry
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At Oak Ridge National Laboratory, a supercomputer named Frontier has broken the exascale computing barrier, meaning it can calculate more than a million trillion floating-point operations per second. In this episode, C&EN reporters Craig Bettenhausen and Ariana Remmel discuss how Frontier works and what that kind of power could mean for computation…
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Bonus: Carolyn Bertozzi and Barry Sharpless reflect on winning the 2022 Nobel Prize in Chemistry
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In this bonus episode of C&EN’s Bonding Time, we hear from 2022 chemistry Nobel laureates Carolyn Bertozzi and K. Barry Sharpless, who shared the prize along with Morten Meldal for their work on click chemistry and bioorthogonal chemistry. After a November symposium honoring the US-based Nobel awardees at the Embassy of Sweden in Washington, DC, th…
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Lithium mining’s water use sparks bitter conflicts and novel chemistry
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Replacing gas cars with electric ones is a main pillar of plans to fight climate change. But the lithium-ion batteries used in electric cars come with a cost. Communities near the Salar de Atacama in Chile, where about a quarter of the world’s lithium is extracted from salty aquifers, say mining companies pose a serious threat to the local environm…
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Bonus: For John Goodenough’s 100th birthday, we revisit a fan-favorite interview with the renowned scientist
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Famed lithium-ion-battery pioneer and Nobel Prize–winner John Goodenough has achieved yet another milestone—a century on Earth. Goodenough celebrates his 100th birthday on July 25, 2022. In honor of the occasion, Stereo Chemistry host Kerri Jansen and C&EN reporter Mitch Jacoby revisit their 2019 interview with the renowned scientist, recorded at h…
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Bonus: Jess Wade on Wikipedia and work-life balance
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This month, Stereo Chemistry is sharing an episode of the podcast ChemConvos featuring an interview with materials scientist, self-described “Raman spectroscopy enthusiast,” and prolific Wikipedia editor Jess Wade. On ChemConvos, hosts Henry Powell-Davies and Medina Afandiyeva seek to uncover the story behind the scientist. In this episode, the tri…
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Bonus: The sticky science of why we eat so much sugar
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Our bodies need sugar to survive. But most of us consume way more than we actually need, and many foods and beverages pack a dose of added sweeteners. So why are we eating all of this extra sugar? This month, Stereo Chemistry is sharing an episode of the podcast Tiny Matters that examines that question. In the episode, hosts Sam Jones and Deboki Ch…
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Bonus: There’s more to James Harris’s story
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Chemists may know James Harris as the first Black scientist to be credited with codiscovering an element. In fact, we referenced this in a previous episode of Stereo Chemistry about making superheavy elements. But beyond this memorable factoid, details about the accomplished nuclear chemist are scarce, and most sources repeat the same superficial i…
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Bonus: The helium shortage that wasn’t supposed to be
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Helium shortages can derail research and threaten expensive instruments that depend on the gas to operate safely. In late 2020, analysts predicted—and we reported—that pressures on the global helium market were likely to ease as new production capacity came online. Today, helium users are again facing price spikes and limited supplies, driven by a …
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Sarah Reisman and Melanie Sanford on how organic chemistry is changing and how they’ve learned to choose priorities
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Being a chemistry professor is a juggling act. But sometimes professors have too many balls in the air. How do they know which ones to grab and which to let drop? In this episode of Stereo Chemistry, C&EN's Leigh Krietsch Boerner sits down with organic chemists Sarah Reisman and Melanie Sanford to hear how they decide what projects to work on, what…
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Jose-Luis Jimenez and Kimberly Prather on the intersection of aerosol science and the COVID-19 pandemic
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Imagine you’re an atmospheric chemist. There’s a pandemic. And public health officials release information about how the virus spreads from one person to another—information that directly contradicts your knowledge of how tiny particles move in the air. What do you do? In this episode of Stereo Chemistry, Jose-Luis Jimenez and Kimberly Prather talk…
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We have some bittersweet news: Orbitals is coming to a close. BUT there’s a new science podcast headed your way in 2022! It’s called Tiny Matters, and it's a show about things small in size but big in impact. Every other Wednesday, hosts Sam Jones and Deboki Chakravarti uncover the little stuff that makes the big stuff possible, answering questions…
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🧪 Solutions 112 | The Sweet Chemistry of Vanilla Memories
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If there’s one flavor you can always count on, it’s vanilla. Sweet, creamy, and nostalgic, it comes from a creeping orchid vine. But with increased demand, scientists are finding new ways to make it, including starting from an unexpected plant…rice! Solutions is made with funding and featuring scientists from 3M, Ascend Performance Materials, Baker…
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Jessica Ray and William Tarpeh on clean water, turning trash into treasure, and life as assistant professors
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How do we build water systems that are sustainable and also equitable? On this episode of Stereo Chemistry, Jessica Ray and William Tarpeh talk with C&EN reporter Katherine Bourzac about how they use their chemical engineering know-how to develop simple systems for filtering toxic chemicals from our water and harvesting useful chemicals from urine.…
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🧪 Solutions 111 | A Walk Among the Sponges
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Think the science behind sponges must be boring? You’re so, so wrong. Shrink down to the microscopic level with us and take a walk among sponges designed to keep bacteria alive, clean with just water, and literally cut through your holiday cleaning. Solutions is made with funding and featuring scientists from 3M, Ascend Performance Materials, Baker…
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David Liu and Stuart Schreiber on the science that motivates, fascinates, and tells us who we are
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What motivates a creative scientific mind? How does an accomplished scientist pinpoint new subjects to explore? How is the field of chemical biology evolving? In this episode of Stereo Chemistry, we probe those questions with scientists and serial entrepreneurs David Liu and Stuart Schreiber, both pioneers in developing tools that use chemistry to …
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Bacteria are cleaning up our toxic waste | Orbitals 410
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Bacteria often get a bad rap, which is fair—they are responsible for diseases like strep throat, pneumonia, and tuberculosis, and antibiotic resistance is a legitimate threat to humanity's existence. But some bacteria might actually save lives by cleaning up things like massive oil spills and radioactive waste. Featuring Dr. Cara Santelli.…
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🧪 Solutions 110 | What your raincoat and a hydrogen fuel cell have in common
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Polymer membranes make everything from rain jackets to medical devices. But they’re also integral parts of hydrogen fuel cells, powering cars that give off nothing but water vapor. How do fuel cells work, and why aren’t you driving one yet? Solutions is made with funding and featuring scientists from 3M, Ascend Performance Materials, Baker Hughes, …
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Stereo Chemistry’s new season will launch on Nov. 23, featuring eight chemistry greats in conversation with . . . each other. In each episode, two sensational chemists will pair up for in-depth conversations moderated by a C&EN reporter. Listen now as show host Kerri Jansen reveals the lineup with new Stereo Chemistry team member Attabey Rodríguez …
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The Great Molasses Flood of 1919 | Orbitals 409
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When you hear the word “molasses” you probably imagine super slow-moving, brown-colored sweet stuff that you add to a cookie recipe. And that is what molasses usually looks like, but under certain conditions and in large enough quantities, molasses can be dangerous. Just over a century ago, the North End of Boston learned just *how* dangerous. Feat…
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The 2021 Nobel Prize in Chemistry went to Benjamin List and David W. C. MacMillan for their development of asymmetric organocatalysis, which has proved to be a powerful tool for building molecules. In this special episode of Stereo Chemistry, host Kerri Jansen, C&EN reporter Leigh Krietsch Boerner, and C&EN editorial fellow Emily Harwitz delve into…
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🧪 Solutions 109 | No 5G Without Chemistry
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5G is coming… but can your phone handle it? Surprisingly, a lot of that comes down to the chemistry inside! Let’s crack open your phone to figure out how chemistry is making it smaller, faster, and a little more sticky! Solutions is made with funding and featuring scientists from 3M, Ascend Performance Materials, Baker Hughes, BASF, Dow, DuPont, Pr…
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BONUS: Astronaut Leland Melvin’s journey from chemistry to the cosmos
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This month, Stereo Chemistry is sharing an episode of Third Pod from the Sun, a podcast from the American Geophysical Union, featuring an interview with retired astronaut and former professional athlete Leland Melvin. In the episode, Melvin describes how an early—and explosive—interest in chemistry grew into a scientific career at NASA and two mi…
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Sweat: The Taboo Fluid That Keeps Us Alive | Orbitals 408
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Sweat is this thing that many of us seem to loathe, but also pay a lot of money to do while being yelled at by professionals. So what is sweat? And why do we do it? And why are we often so embarrassed by it? This episode features writer Sarah Everts, who recently wrote a book called The Joy of Sweat: The Strange Science of Perspiration.…
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🧪 Solutions 108 | Antiviral Fabric: From Less-Smelly Socks to Life-Saving Masks
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A team of researchers making workout gear that never stinks realized that their invention could actually have a bigger impact fighting a global pandemic. It all starts with a high-performance fabric found in your closet and a common mineral in your breakfast cereal. Solutions is made with funding and featuring scientists from 3M, Ascend Performance…
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BONUS: How body farms can help solve cases
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This month, Stereo Chemistry is sharing an episode of Orbitals that features an interview with forensic chemist Shari Forbes, an expert in human decomposition who studies the odors of decomposition at a body farm in chilly Quebec. Research at body farms—research facilities dedicated to studying what happens to human bodies after death—supplies law …
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It's Raining PLASTIC?! | Orbitals 407
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In 2020, researchers discovered that more than 1,000 tons of plastic—that’s over 100 million plastic water bottles worth—rains down on National Parks and wilderness in the western U.S. every year. How is that possible? This week's episode features microplastics researcher Imari Walker. Check out her YouTube channel here: https://www.youtube.com/cha…
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🧪 Solutions 107 | How Wood is Making Sunscreen More Effective
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Many of us slather sunscreen on in the summer to keep sunburns at bay. But new materials can improve sunscreens without adding more of the sticky, greasy compounds we all hate. The surprising origin of those new ingredients? Wood! Solutions is made with funding and featuring scientists from 3M, Ascend Performance Materials, Baker Hughes, BASF, Dow,…
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BONUS: Rare earths’ magic comes at a cost (Part 2)
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(Part 2/2) This month, Stereo Chemistry is sharing a pair of episodes from Distillations, a podcast from the Science History Institute. We rely on rare-earth elements to make many essential technologies like smartphones, medical imaging devices, and wind turbines. But how much do you know about where these extraordinary materials come from? In this…
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BONUS: Rare earths’ magic comes at a cost (Part 1)
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(Part 1/2) This month, Stereo Chemistry is sharing a pair of episodes from Distillations, a podcast from the Science History Institute. We rely on rare-earth elements to make many essential technologies like smartphones, medical imaging devices, and wind turbines. But how much do you know about where these extraordinary materials come from? In this…
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The Icepick Surgeon | Orbitals 406
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Sam Kean's latest book, The Icepick Surgeon: Murder, Fraud, Sabotage, Piracy, and Other Dastardly Deeds Perpetrated in the Name of Science, dropped earlier this week. It’s about when knowledge becomes everything—the only thing. At whatever the cost. You'll hear about what made Sam want to write the book, and about a couple of the characters within …
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BONUS: Celebrating LGBTQ+ excellence with My Fave Queer Chemist
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This month, we’re sharing an episode of the podcast My Fave Queer Chemist. Hosted by graduate students Bec Roldan and Geraldo Duran-Camacho, the show celebrates the excellence of LGBTQ+ chemists everywhere. Stereo Chemistry is excited to share this recent episode featuring inorganic photochemist Irving Rettig. In the episode, Rettig discusses his b…
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🧪 Solutions 106 | Fermenting Pheromones and Phytases
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How do you keep moths from munching on apples? By confusing them with a field full of mating pheromones brewed in a lab. The same fermentation strategy can also make enzymes to help chickens digest their feed and keep their farmyards a little less… sticky. Today we’ll talk about the biochemistry that helps food make it from the field to your fridge…
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Pretzel Perfume, Egg Foam, and the Number of Bubbles in Beer: Pub Chemistry | Orbitals 405
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A lot has happened in the last year (understatement of the millennium), so we wanted to bring our listeners something a bit sillier than usual. In this episode we’re talking food and drink chemistry—just fun bits of trivia that you can take with you as you venture back out to bars and restaurants this summer. Sam's joined by Orbitals executive prod…
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