Science Talk

By Scientific AmericanScience

Science Talk episodes

October 10, 2019 Artificial Intelligence Learns to Talk Back to Bigots
Algorithms are already used to remove online hate speech. Now scientists have taught an AI to respond—which they hope might spark more discourse. Christopher Intagliata reports.

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4 min
October 09, 2019 Lithium-Ion Battery Creators Win Chemistry Nobel Prize
John B. Goodenough, M. Stanley Whittingham and Akira Yoshino share the 2019 Nobel Prize in Chemistry “for the development of lithium-ion batteries” that have led to portable electronic devices that are rechargeable virtually anywhere on the planet.

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18 min
October 09, 2019 Nobel in Chemistry for Lightweight Rechargeable Batteries
The 2019 Nobel Prize in Chemistry goes to John Goodenough, M. Stanley Whittingham and Akira Yoshino “for the development of lithium-ion batteries.”

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4 min
October 08, 2019 Nobel in Physics for Exoplanets and Cosmology
The 2019 Nobel Prize in Physics goes to James Peebles “for theoretical discoveries in physical cosmology” and to Michel Mayor and Didier Queloz “for the discovery of an exoplanet orbiting a solar-type star.”

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5 min
October 07, 2019 How Cells Sense Oxygen Levels: Nobel Prize in Physiology or Medicine
William Kaelin, Jr., Peter Ratcliffe and Gregg Semenza share the 2019 Nobel Prize in Physiology or Medicine “for their discoveries of how cells sense and adapt to oxygen availability.” New therapies for cancer and conditions such as anemia are in the pipeline, based on these discoveries.

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24 min
October 07, 2019 Nobel in Physiology or Medicine for How Cells Sense Oxygen Levels
The 2019 Nobel Prize in Physiology or Medicine goes to William G. Kaelin, Jr., Peter J. Ratcliffe and Gregg L. Semenza “for their discoveries of how cells sense and adapt to oxygen availability.” They identified molecular machinery that regulates gene activity in response to changing levels of oxygen.

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5 min
October 06, 2019 Teeth Tell Black Death Genetic Tale
DNA from the teeth of medieval plague victims indicates the pathogen likely first arrived in eastern Europe before spreading across the continent.

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5 min
October 05, 2019 Tiny Worms Are Equipped to Battle Extreme Environments
Scientists found eight species of nematodes living in California’s harsh Mono Lake—quintupling the number of animals known to live there. Christopher Intagliata reports.

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4 min
October 02, 2019 Talking Health and Energy at U.N. Climate Action Summit
Scientific American senior editor Jen Schwartz talks with WHO officials Maria Neira and Agnès Soucat about climate and health and with Rachel Kyte, special representative to the U.N. secretary-general for, and CEO of, Sustainable Energy for All.

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26 min
October 02, 2019 Heat Changes Insect Call, but It Still Works
Tiny insects called treehoppers produce very different mating songs at higher versus lower temperatures, but the intended recipient still finds the changed songs attractive.

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4 min

About Science Talk

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Science Talk is a podcast of longer-form audio experiments from Scientific American--from immersive sonic journeys into nature to deep dives into research with leading experts.