The American beaver, Castor canadensis, nearly didn’t survive European colonialism in the United States. Prized for its dense, lustrous fur, and also sought after for the oil from its tail glands, the species was killed by the tens of thousands, year after year, until conservation efforts in the late 19th century turned the tide.
In her new book, Beaverland: How One Weird Rodent Made America, author Leila Philipp tells that tale—and the ecological cost of this near-extermination. But she also has good news: beavers, and their skillful engineering of waterways, have the potential to ease the fire, drought and floods of a changing climate. She talks to Ira about the powerful footprint of the humble beaver.
The Sweet Song Of The Largest Tree On Earth
For this story, we’re taking a trip to south central Utah and into the Fishlake National Forest to visit the largest tree on earth, an aspen named Pando. The strange thing about Pando is that it doesn’t really look like the world’s biggest tree. It has rolling hills with thousands of tall, lean aspens swaying in the wind.
But Pando is there, hiding in plain sight. All those tree trunks you see aren’t actually individual trees. Technically, they’re branches, and that’s because Pando is one massive tree—sprawling more than 100 acres, with 47,000 branches growing from it.
There is a lot to learn about Pando, and our guests turned to sound to understand the tree better. Together, they created an “acoustic portrait” to hear all the snaps, splinters, and scuttles that happen in and around the tree.
Ira talks with Jeff Rice, a sound artist and co-founder of the Acoustic Atlas at the Montana State University Library, and Lance Oditt, executive director of the non-profit Friends of Pando, which is dedicated to preserving the tree.
This $7 Violin May Be $7... But How Does It Sound?
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.
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Transcripts for each segment will be available the week after the show airs on sciencefriday.com.
705: A Black Physician’s Analysis Of The Legacy Of Racism In Medicine
704: Faraway Planets With Oceans Of Magma | The Art And Science Of Trash Talk
701: Is Each Fingerprint On Your Hand Unique? | In This Computer Component, Data Slides Through Honey
700: The FDA Approved The First CRISPR-Based Therapy. What’s Next?
703: Protecting The ‘Satan’ Tarantula | If Termites Wore Stripes, Would Spiders Still Eat Them?
699: Scientists Are Uncovering A World Of ‘Dark Matter’ Carcinogens
702: Syphilis Cases Up 80% Since 2018 | The Largest Deep-Sea Coral Reef In The World
698: Expanding Our Umwelt: Understanding Animal Experiences
695: How Signing Characters Help Deaf Children Learn Language
696: ‘Mysterious’ Canine Illness: What Dog Owners Should Know
694: An App For People Of Color To Rate Their Birthing Experiences | How Different Animals See
697: NASA Opens Canister With Asteroid Sample | ADHD Prescription Rates Spiked During The Pandemic
693: AI Helps Find Ancient Artifacts In The Great Lakes | An Artist Combines Indigenous Textiles With Modern Tech
691: When The ‘Personal’ Computer Turned 30
690: How The Moon Transformed Life On Earth, From Climate to Timekeeping
692: From Scans To Office Visits: How Will AI Shape Medicine?
689: Rhesus Monkey Cloned With Modified Approach Has Survived Into Adulthood
688: 3,000 Types Of Brain Cells Categorized In Massive Brain Cell Atlas
685: Brain ‘Organoids’: Lab-Grown Cell Clusters Model Brain Functions
687: The Lasting Allure Of Shackleton’s ‘Endurance’
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