Earliest human footprints in North America, dating violins with tree rings, and the social life of DNA

Science Magazine Podcast

Science Podcast

News, News Commentary, Science

4.3 • 842 Ratings

🗓️ 23 September 2021

⏱️ 45 minutes

🔗️ Recording | iTunes | RSS

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Summary

Contributing Correspondent Lizzie Wade joins host Sarah Crespi to discuss fossilized footprints left on a lake shore in North America sometime before the end of Last Glacial Maximum—possibly the earliest evidence for humans on the continent. Read the research. Next, Paolo Cherubini, a senior scientist in the dendrosciences research group at the Swiss Federal Institute for Forest, Snow and Landscape Research, discusses using tree rings to date and authenticate 17th and 18th century violins worth millions of dollars. Finally, in this month’s installment of the series of book interviews on race and science, guest host Angela Saini interviews Alondra Nelson, professor in the School of Social Science at the Institute for Advanced Study, about her 2016 book The Social Life of DNA: Race, Reparations, and Reconciliation After the Genome. Note on the closing music: Violinist Nicholas Kitchen plays Johann Sebastian Bach’s Chaconne on the violin “Castelbarco” made by Antonio Stradivari in Cremona, Italy, in 1697. Courtesy of the U.S. Library of Congress. This week’s episode was produced with help from Podigy. [Image: Bennet et al., Science; Music: Jeffrey Cook] [Alt text: human footprints preserved in rock] Authors: Sarah Crespi; Lizzie Wade; Angela Saini See omnystudio.com/listener for privacy information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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0:00.0	Introducing Peak Scientific. With over 25 years of expertise, Peak leads the industry in providing
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0:13.2	groundbreaking research or pushing the boundaries of science, trust Peak Scientific to supply
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0:31.4	Visit peak scientific.com and quote science podcast to receive special offers.
0:37.2	This podcast is supported by the Icon School of Medicine at Mount Sinai,
0:41.4	one of America's leading research medical schools.
0:44.8	Icon Mount Sinai is the academic arm of the eight hospital Mount Sinai health system in New York
0:50.0	City.
0:50.9	It's consistently among the top recipients of NIH funding. Researchers at Icon Mount Sinai have
0:57.2	made breakthrough discoveries in many fields vital to advancing the health of patients, including
1:02.4	cancer, COVID and long COVID, cardiology, neuroscience, and artificial intelligence. The Icon
1:09.8	School of Medicine at Mount Sinai, we find a way.
1:19.0	Welcome to the science podcast for September 24, 2021.
1:23.1	I'm Sarah Crespi.
1:24.5	Each week, we feature the most interesting news and research published in science
1:28.0	and the sister journals. First up this week, contributing correspondent Lizzie Wade discusses
1:32.9	preserved human footprints that pushed back the date for when people first arrived in the Americas
1:38.3	by thousands of years into the last glacial maximum. Next, researcher Paolo Carabini talks about using dendrochronology,
1:47.5	that's counting tree rings, to date and authenticate valuable musical instruments.
1:53.7	Finally, in this month's installment of our series on race and science,
	...

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