Science Talk

Science Talk

By Scientific AmericanScience

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Science Talk episodes

February 18, 2020 Industrial Revolution Pollution Found in Himalayan Glacier
Ice cores from a Tibetan glacier reveal the first deposits of industrial revolution pollution, starting in layers dated to about 1780.

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5 min
February 15, 2020 Fight-or-Flight Nerves Make Mice Go Gray
A new study in mice concludes stress can cause gray hair—and credits overactive nerves with the change in hue. Karen Hopkin reports.

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4 min
February 13, 2020 Espresso May Be Better when Ground Coarser
A very fine grind can actually hamper espresso brewing, because particles may clump more than larger particles will.

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5 min
February 12, 2020 Kirk, Spock and Darwin
Duke University evolutionary biologist Mohamed A. F. Noor talks about his book Live Long and Evolve: What Star Trek Can Teach Us about Evolution, Genetics, and Life on Other Worlds.

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25 min
February 11, 2020 Feral Dogs Respond to Human Hand Cues
Most feral dogs that did not run away from humans were able to respond to hand cues about the location of food—even without training.

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5 min
February 07, 2020 Neandertals Tooled Around with Clams
Neandertals ate clams and then modified the hard shells into tools for cutting and scraping.

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4 min
February 06, 2020 Fingering Fake Whiskeys with Isotopes
Whiskeys claimed to be from the 19th century are revealed to be made with much more recently grown barley, thanks to the unique isotopic fingerprint of the nuclear-testing era.

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4 min
February 05, 2020 Having an Albatross around Your Boat
By outfitting 169 albatrosses with GPS data loggers, scientists were able to track fishing boats apparently trying to hide their location. Christopher Intagliata reports.

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4 min
February 03, 2020 Science News Briefs from All Over
Here are a few brief reports about international science and technology from around the world, including one from the Democratic Republic of the Congo about a toad that has evolved coloring that makes it look like a deadly snake’s head.

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4 min
February 02, 2020 Facts about Groundhogs Other Than Their Poor Meteorology
Groundhogs are less accurate at weather forecasting than are coin flips, but they are nonetheless pretty interesting critters.

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5 min

About Science Talk

From the publisher's feed

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.