Sinopsis
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
Episodios
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Polar Bears Must Work Harder on Faster Sea Ice Treadmill
28/12/2015 Duración: 02minThinner sea ice is getting pushed farther by Arctic winds, which makes polar bears walk more to stay in the same place, increasing their need for food.
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Southwest's Conifers Face Trial by Climate Change
24/12/2015 Duración: 03minUsing climate models and tree physiological data, researchers forecast a near-complete annihilation of evergreens in the southwest by the year 2100. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Superfast Computer Chip Transmits Data with Light
23/12/2015 Duración: 03minResearchers designed a chip that transfers data not with electrons but with photons—resulting in a potential 10-fold boost in speed. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Text Reminders Cut Binge Drinking in At-Risk Recipients
22/12/2015 Duración: 02minHeavy drinkers age 18 to 25 who got texts before and after each weekend about their weekend drinking plans cut their alcohol intake compared with those who got no texts or more perfunctory texts
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Drugged Gut Microbiome Cuts Heart Risk in Mice
21/12/2015 Duración: 02minA compound found in extra virgin olive oil and red wine reduced mice’s risk of clogged arteries. Christopher Intagliata reports
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Antievolution Legislation Shows Descent with Modification
18/12/2015 Duración: 02minNicholas Matzke, an American evolutionary biologist currently at the Australian National University in Canberra, performed a phylogenetic-style analysis of dozens of antievolution education bills in various state legislatures to track their relatedness
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Small Fish Takes Fast-Evolution Track
17/12/2015 Duración: 04minStickleback fish in Alaska evolved from living in seawater to freshwater in just 50 years, with the help of freshwater traits in their genome. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Marion Nestle Talks "Soda Politics"
16/12/2015 Duración: 03minMarion Nestle, author of Soda Politics: Taking on Big Soda (and Winning), talked December 14 in New York City about Coca-Cola's attempt to fund research designed to find sugared soft drinks innocent in contributing to obesity
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Teachers' Racial Biases Have Different Effects for High Versus Low Performers
15/12/2015 Duración: 02minIn a study of first graders, teachers rated low-performing minority students more positively than low-performing white students, but they ranked high-performing minority students lower than white students at the same level Learn more about your ad choices. Visit megaphone.fm/adchoices
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Energy Secretary Talks Climate Challenge
14/12/2015 Duración: 02minA brief portion of the December 9 conversation during the climate talks in France between Secretary of Energy Ernest Moniz and Scientific American’s David Biello
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Cockroach Caca Contains Chemical Messages Made by Microbes
11/12/2015 Duración: 02minRoaches get the signal to gather together from pheromones produced by their gut microbes and released in the insects’ excrement. Christopher Intagliata reports
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90-Nation Coalition Aims for Ambitious Climate Change Deal
10/12/2015 Duración: 01minAmong its goals, the coalition of countries, including the U.S., wants an agreement that the world must aim as soon as possible to hold global warming to 1.5-degree Celsius and work toward a long-term low-carbon future
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New African Highways Have a High Environmental Price
09/12/2015 Duración: 03minAn analysis determines that many road-building projects in Africa would bring only modest benefits to people, while devastating the environment. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Protect the Right Places for Biodiversity
08/12/2015 Duración: 01minScientists can provide the info to make sure that the correct areas are chosen for protection to help ensure the continued robustness of a region's biodiversity
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Individuals' Blood Glucose Levels after Meals May Be Predictable
07/12/2015 Duración: 03minClosely tracking 800 people's blood glucose levels in response to meals allowed researchers to develop a predictive algorithm for individuals Learn more about your ad choices. Visit megaphone.fm/adchoices
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Obese Dad's Sperm May Influence Offspring's Weight
04/12/2015 Duración: 03minOverweight men’s sperm undergo epigenetic changes that may alter a child’s brain development and appetite control. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Pollination Isn't Just for the Bees
03/12/2015 Duración: 02minFlies, beetles, butterflies and moths may account for some 40 percent of the world’s pollination. Christopher Intagliata reports
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Race Colors New Residents' Views of Local Businesses
02/12/2015 Duración: 01minGentrifying residents in two Brooklyn neighborhoods view their new surroundings differently, depending on the race of those who traditionally live there. Erika Beras reports
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Espresso Machines Brew a Microbiome of Their Own
01/12/2015 Duración: 01minResearchers sampled 10 espresso machines and found that most of them harbored coffee residues rich in bacteria—including some potentially pathogenic strains. Christopher Intagliata reports
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Massive Survey Creates Amazon Tree Census
30/11/2015 Duración: 03minA tree survey in the Amazon by more than 150 researchers led to an estimate that up to 57 percent of Amazon trees could qualify for threatened species status by 2050 Learn more about your ad choices. Visit megaphone.fm/adchoices