Science Friday Folgen

Why Are Gas Stoves Under Fire? If you were online at all last week, you probably encountered conversations about gas stoves. The sudden stove discourse was sparked by a comment made by a commissioner on the Consumer Products Safety Commission (CPSC) to a Bloomberg reporter, in which the commissioner discussed plans to regulate gas stoves. Those comments morphed via repetition into inaccurate rumors of an impending ban on stoves fueled by ‘natural gas,’ or methane, currently used in around 38% of US homes. The CPSC later clarified that the agency was “researching gas emissions in stoves and exploring new ways to address health risks,” but was not looking to ban gas stove use. That said, studies have found that gas stoves are a major source of indoor air pollution, and can emit nitrogen oxides that have been found to exacerbate asthma symptoms. Last summer, the American Medical Association adopted a resolution informing physicians of the stoves’ link to asthma. A report published in December estimates that over 12% of childhood asthma cases may be attributable to gas stove emissions. The stove debate flares beyond asthma, however. Some municipalities, including New York City, are moving to phase out the use of natural gas in new construction for reasons related to climate change. And Washington state has put in place rules mandating the use of electric heat (with fossil fuel-derived heating allowed as a backup option) in new construction this year. Rebecca Leber, senior reporter covering climate at Vox, joins Ira to explain the heated words over gas stove use, and how they fit into a larger battle over fossil fuel usage and climate change. What Will The Next Generation Of COVID-19 Vaccines Look Like? The first COVID-19 vaccine was approved just over two years ago. Since then, the virus continues to mutate. With each new variant, the virus seems to evade our current vaccines more effectively, faster than we can make effective new mRNA boosters. Coronaviruses frequently spill over from animals to humans, like the original SARS and MERS viruses, which are both types of coronaviruses. Researchers are working on the next generation of coronavirus vaccines that aim to protect us against multiple emerging variants—and even prevent future pandemics. Ira talks with Dr. Pamela Bjorkman, professor of biology and bioengineering at the California Institute of Technology, about her work to develop a vaccine that would protect against several types of coronaviruses. And later, Ira talks with Dr. Akiko Iwasaki, professor of immunobiology and molecular, cellular, and developmental biology at Yale University, about the nasal vaccine she’s researching and the hurdles in bringing it to market.     The Sweet Song Of The $7 Violin Stringed instruments can be a joy to the ears and the eyes. They’re handcrafted, made of beautiful wood, and the very best ones are centuries old, worth hundreds of thousands of dollars, or sometimes even millions. But there’s a new violin in the works—one that’s 3D-printed. It costs just a few bucks to print, making it an affordable and accessible option for young learners and classrooms. Dr. Mary-Elizabeth Brown is a concert violinist and the founder and director of the AVIVA Young Artists Program in Montreal, Quebec, and she’s been tinkering with the design of 3D-printed violins for years. She talks with Ira about the science behind violins, the design process, and how she manages to turn $7 worth of plastic into a beautiful sounding instrument. Learn more about the project, as well as its progress, beta testing, and release date at www.printaviolin.com. Transcripts for each segment will be available the week after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

Why Are Children’s Antibiotics So Hard To Find Right Now? Mary Warlo has been extremely worried lately. Her baby Calieb, who is six months old, has sickle cell disease. In early December he went for a few days without liquid penicillin, a medication that he—and thousands of other children in the U.S.—rely on to prevent potentially life threatening infections. Warlo couldn’t easily find a pharmacy in Indianapolis that had the medicine in stock. She and her husband frantically drove around for hours, stopping at five different pharmacies before they were able to get their prescription filled. “It was extremely stressful and I am worried about what will happen the next time we need to fill his prescription two weeks from now,” she said. Pediatric sickle cell disease specialists say they are alarmed by signs that the stock of liquid penicillin is dwindling in some places. They say children’s lives depend on this medication, and a penicillin shortage could spell disaster. Read the rest at sciencefriday.com.   Bats Use Death Metal 'Growls' To Make Social Calls What do death metal vocalists and bats have in common? Both use their ventricle folds, or “false vocal cords,” to extend their vocal ranges to hit a lower register. This gives bats a huge vocal range—seven full octaves. Humans typically tap out at about three to four octaves. Even people with really impressive vocal ranges, like Mariah Carey, just can’t compete with a bat. A study recently published in the academic journal PLOS Biology examines how and why different anatomical structures might help bats achieve such extreme frequency range. Ira talks with one of the study’s authors, Coen Elemans, a professor in bioacoustics and animal behavior at the University of Southern Denmark based in Odense, Denmark.   Can Science Answer Life’s Biggest Questions? Dr. Alan Lightman has been around the block a few times. Over the past five decades, he has been a theoretical physicist, professor at MIT, and bestselling author—often at the same time. His most notable novel, Einstein’s Dreams, has been adapted into dozens of plays and musicals since its publication in 1992, becoming one of the most famous examples of mixing art and science.  Lightman’s work follows a philosophical way of thinking about life’s biggest questions, like the origins of consciousness. His new venture brings this way of thinking to the silver screen. Searching: Our Quest for Meaning in the Age of Science consults scientists and faith leaders to grapple with some of these theoretical quandaries. And Lightman gives a good argument for why the journey to these answers can be more impactful than the answers themselves.  Ira speaks with Alan Lightman about the new program, available to watch now online and on your local public television station.  Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.

Technology Trends to Watch in 2023 The start of a new year is often a time to contemplate the future and what might lie ahead on the horizon. This week, the magazine MIT Technology Review unveiled its annual list of 10 technologies to watch—innovations that it thinks are on the verge of rapid adoption or causing significant cultural changes, or already in the process of creating such a shift. This year’s list includes items from the amazing astronomy enabled by JWST, to the ‘inevitable’ electric vehicle, as well as technologies that are further down the road, such as the ability to grow replacement organs to order. Amy Nordrum, an executive editor at MIT Technology Review, joins Ira to talk about some of the innovations and the difficulties of narrowing a universe of possibilities into a list of 10 key technologies to watch. They also discuss some technologies highlighted in the past that went on to make a big difference—cloud computing, anyone?—as well as some projects the magazine highlighted in the past that did not turn out to be as significant as once thought.   Are Animal ‘Pests’ Really The Villains We Make Them Out To Be? Join us as we enter the rat’s nest. The snake pit. The mouse trap. What, precisely, is it that untangles an animal friend from foe? This week, we’re taking a close look at pests—critters with a notorious reputation for being destructive, annoying, and even villainous. We’re also going to get a little philosophical and ask: What do those opinions tell us about ourselves? Science journalist Bethany Brookshire is the author of Pests: How Humans Create Animal Villains. She joins Ira to talk about her new book, challenge our perspectives on what makes a pest, and answer listener’s pest-y questions live. To read an excerpt of the book, visit sciencefriday.com.   Transcripts for each segment will be available the week after the show airs on sciencefriday.com. Subscribe to this podcast. Plus, to stay updated on all things science, sign up for Science Friday's newsletters.