Sinopse
Leading science journalists provide a daily minute commentary on some of the most interesting developments in the world of science. For a full-length, weekly podcast you can subscribe to Science Talk: The Podcast of Scientific American . To view all of our archived podcasts please go to www.scientificamerican.com/podcast
Episódios
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Right Whales Seem to Think before They Speak
09/04/2018 Duração: 02minRather than always making the same call in response to the same stimuli, North Atlantic right whales are capable of changing their vocalizations.
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Old New England Underground May Be Spry after All
07/04/2018 Duração: 02minThe U.S. Northeast may be more geologically active than was previously thought, according to a seismic sensor network.
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Brain Scan Might Reveal Appetite for Risk
06/04/2018 Duração: 03minVolunteers willing to place riskier bets tended to sport larger amygdalas—a region associated with processing fear. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Neandertal Face Shape Was All Over the Air
04/04/2018 Duração: 02minThe jutting midface of Neandertals seems to have evolved to help get large volumes of air into an active body that needed lots of oxygen.
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Rev Up Photosynthesis to Boost Crop Yields
02/04/2018 Duração: 01minPhotosynthesis actually is an inefficient process, but a biological chemist is trying to crank it up.
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13,000-Year-Old Footprints under West Coast Beach
01/04/2018 Duração: 01minSeveral feet below a beach in British Columbia, archaeologists discovered soil trampled by human feet—the oldest footprints found so far in North America. Christopher Intagliata reports.
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Math Cracks a Knuckle-Cracking Mystery
29/03/2018 Duração: 02minThe source of knuckle cracking sounds is much debated—but new mathematical models may reconcile two opposing views. Christopher Intagliata reports.
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Rotting Flesh Offers Insight on Fossilization
26/03/2018 Duração: 02minTo learn more about decay and fossilization, researchers conduct unorthodox experiments—like dissecting decomposing animals in the lab. Christopher Intagliata reports.
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Ravens Crow with Individual Flair
23/03/2018 Duração: 03minRavens produce different types of calls depending on their age and sex—which might help ravens size up other individuals. Jason G. Goldman reports.
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U.S. Flu Spread Counts On Southern Cold Snaps
21/03/2018 Duração: 02minA multifactorial analysis finds that the ignition of a flu epidemic stems from a blast of colder weather striking an otherwise warm, humid, urban environment, and driving people indoors into close quarters.
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Louise Slaughter Was Congress's Food Safety Champion
20/03/2018 Duração: 02minUpstate New York Congresswoman Louise Slaughter, who worked for decades on issues such as overuse of antibiotics in agriculture and food safety in general, died March 16 at the age of 88.
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Arctic Heat Waves Linked to Snowpocalypse-Like Storms
18/03/2018 Duração: 03minAn analysis of more than six decades of daily temperature and snowfall data linked warmer arctic temperatures to cold snaps at lower latitudes. Christopher Intagliata reports. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Gut Parasites Have Their Own Gut Microbiomes
15/03/2018 Duração: 02minThe whipworm lives in the human gut, mooching microbes from its host to build its own microbiome. Christopher Intagliata reports.
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Drones Could Help Biologists Tally Birds
12/03/2018 Duração: 02minCounting by drone not only saves time and effort, but yields better data on species numbers—a definite plus in terms of conservation. Karen Hopkin reports.
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Saliva Protein Might Inhibit Intestinal Anarchy
10/03/2018 Duração: 01minA protein found in spit prevents bad bugs from binding to intestinal cells in the lab, pointing to a possible way to lower the chances of dysentery. Christopher Intagliata reports.
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Searching the Heavens for Mountains
09/03/2018 Duração: 03minExoplanet hunters are moving beyond simply finding new planets into trying to know what they look like and whether there's surface or subsurface activity. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Human Echolocators Use Tricks Similar to Bats
06/03/2018 Duração: 02minPeople who use echolocating mouth clicks to compensate for low vision increase the number and intensity of clicks when objects are harder to detect. Christopher Intagliata reports.
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Animal Coloration Can Serve Double Duty
05/03/2018 Duração: 03minThe cinnabar moth caterpillar's coloration pattern warns predators close up, but camouflages the critter from a distance. Learn more about your ad choices. Visit megaphone.fm/adchoices
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Some Lichen Fungi Let Genes Go Bye
01/03/2018 Duração: 02minA study of 22 different types of lichens revealed 10 included fungi that had lost a gene for energy production, making them completely dependent on their algal partner.
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To See Gun Injury Drop, Hold an NRA Meeting
28/02/2018 Duração: 02minWhen the National Rifle Association holds its national convention, gun injuries drop 20 percent—perhaps because fewer gun owners are around their guns. Christopher Intagliata reports.