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Science Friday

Podcast Science Friday
Science Friday and WNYC Studios
Brain fun for curious people.
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  • Meet Flora Lichtman | Los Angeles Wildfires Stoked By Santa Ana Winds
    After her SciFri internship 20 years ago, Flora went on to become a beloved science journalist, video producer, and podcaster. Now she’s back! Also, several different fires are causing extreme damage in the Los Angeles area. Strong Santa Ana winds are one factor behind their rapid spread.Science Friday Now Has Two Hosts: Meet Flora Lichtman!Big news! Science Friday now has two hosts—Ira Flatow, the program’s founder, and veteran science journalist Flora Lichtman. Going forward, you’ll hear both of them regularly on the air and on our podcast. Flora joins Ira to introduce herself and talk about her background, from her start as an intern at Science Friday 20 years ago to her role as a video producer, then a writer for Bill Nye, and as creator of the podcast “Every Little Thing.”Los Angeles Wildfires Burn For Days, Stoked By Santa Ana WindsThis week, the Los Angeles area has been battered by at least five separate wildfires. Tens of thousands of acres have burned, and thousands of people have been forced to flee their homes. Fire experts had warned on January 2 that conditions were ideal for wildfires in parts of Southern California. One factor that has helped these fires spread rapidly? Unusually strong Santa Ana winds.On the other side of the country, Winter Storm Blair has caused freezing temperatures and up to a foot of snow across the Midwest and up into the East Coast, putting more than 60 million people under weather alerts.Joining Ira Flatow to discuss these and other top stories of the week is Umair Irfan, science correspondent at Vox, based in Washington, D.C.Transcripts for each segment will be available 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.
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  • What Lichen Tell Us About Ecology, Air Quality, And More
    Last October, Ira Flatow took a trip to the World Forestry Center in Portland, Oregon, for a daylong exploration of lichen—the fuzzy growths often found on trees, roofs, and gravestones. Ira sat down in front of a sold-out room with Dr. Hannah Prather, postdoctoral researcher and visiting assistant professor of biology at Reed College, and Dr. Jesse Miller, lead botanist for the Washington Natural Heritage Program. From their crucial role in ecosystems as indicators of air quality to their striking colors and forms, we’ve really taken a lichen to these amazing organisms.Transcripts for each segment will be available 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.
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  • Biologists Call For A Halt To ‘Mirror Life’ Research
    You’re probably familiar with the concept of handedness—a glove made for your left hand looks basically like the one for your right hand, but won’t fit—it’s a mirror image. Many of life’s important molecules, including proteins and DNA, are chiral, meaning they can exist in either a left-handed or a right-handed form. But on Earth, nature only uses one version or the other in living organisms. Your proteins, for example, are all the left-handed version, while your DNA is all right-handed.With advances in synthetic biology, it could be possible to build an artificial organism that flips that shape, having right-handed proteins and left-handed DNA. Writing in the journal Science, an international group of researchers recently cautioned against anyone trying to create that sort of so-called mirror life, saying that it poses the threat of “unprecedented and irreversible harm” to human health and global ecosystems.Dr. Drew Endy, a synthetic biology researcher at Stanford University and one of the authors of that warning, joins Ira to discuss the concept of mirror life and why a group of researchers felt compelled to call for a halt to mirror life experiments.Transcripts for each segment will be available 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.
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  • The Breakthrough Technologies To Watch In 2025
    Each year, the journalists at the MIT Technology Review publish a list of 10 breakthrough technologies: these are things poised to hit a tipping point, and potentially change the way the world works. Unsurprisingly, artificial intelligence remains a big breakthrough. While 2024 was the year of large learning models, small learning models top Technology Review’s list this year. These smaller models are more accessible, efficient, and could be better for the climate than their larger counterparts. Also on the list is generative AI search, which is already implemented by Google with its Gemini language model. A new HIV medication called Lenacapavir, which has been shown to be incredibly effective in trials, is also on the list, along with cleaner, alternative jet fuels.Joining Ira to talk through these and other items on the list is Amy Nordrum, executive editor of operations at MIT Technology Review based in Boston, Massachusetts. Transcripts for each segment will be available 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.
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  • What Scientists Have Learned From 125 Years Of Bird Counts
    This winter marks the 125th year of Audubon’s Christmas Bird Count, in which bird nerds across the Western Hemisphere venture outside to record all the birds they see and hear.Scientists use that data to understand how birds are faring, where they’re moving, and what they’re up to when it’s not breeding season. With 125 years under its belt, the Christmas Bird Count is the longest-running community science program in the world.How do scientists use this data? And what have they learned in those 125 years? Ira Flatow talks with Dr. Brooke Bateman, senior director of climate and community science at the National Audubon Society, and Dr. Janet Ng, wildlife biologist at Environment and Climate Change Canada in Regina, Canada.Transcripts for each segment will be available 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.
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