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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Frenzy-Feeding Black Hole Makes Galaxy Most Luminous
04/06/2015 Duração: 01minA galaxy 12.5 billion light-years away gives off the light of 300 trillion suns, because its feeding black hole produces enough heat to set the whole galaxy's dust glowing. Lee Billings reports
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Vaccine Aims at Fly Host of Disease Parasite
03/06/2015 Duração: 01minAn experimental leishmaniasis vaccine relies on eliciting an immune response to a protein from the saliva of the sand fly that carries the leishmania parasite, rather than on anything from the parasite itself. Cynthia Graber reports
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Chimps Would "Cook" Food If They Could
02/06/2015 Duração: 04minA new study suggests that chimps have the cognitive skills necessary for cooking—such as patience—even if they don't control fire. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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High Heels Heighten Health Hazard
01/06/2015 Duração: 01minEmergency room visits due to high heel shoe–related injuries doubled between 2002 and 2012. Erika Beras reports
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Parrotfish Build Islands with Their Poop
31/05/2015 Duração: 02minParrotfish munching on algae ingest coral and then eliminate the rocky substrate, creating island-building grade sediment in places like the Maldives. Julia Rosen reports
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Blood Pressure Vaccine Lengthens Rat Lives
29/05/2015 Duração: 01minA DNA-based vaccine gave rats six months of protection against high blood pressure as well as healthier hearts. Christopher Intagliata reports
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CSI: Middle Pleistocene
28/05/2015 Duração: 01minSkull fragments dating back 430,000 years appear to be those of the world's first known murder victim, based on the damage observed. Dina Maron reports
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Mummy Mavens Unwrap Preservation Methods
27/05/2015 Duração: 01minIn 1994 researchers made a mummy. Now scientists have reverse engineered the process to figure out how it's done, with the mummy makers still around to tell them how they did. Cynthia Graber reports
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Smart Cane Could Help Blind ID Faces
26/05/2015 Duração: 01minHigh-tech sticks could help visually impaired people spot obstacles and even identify acquaintances as they approach. Larry Greenemeier reports
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Dolphin Deaths Linked to 2010 Gulf of Mexico Oil Spill
21/05/2015 Duração: 02minUnusual adrenal and lung conditions seen in dead dolphins in the months after the 2010 BP Gulf of Mexico oil spill point to the oil as the cause. Steve Mirsky reports
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Octopus Skin Senses Light, No Eyes or Brain Needed
20/05/2015 Duração: 03minThe skin of a California octopus species has a molecular light-sensing mechanism that allows it to change color to match its surroundings with no input from the creature's eyes or brain. Dina Fine Maron reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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First Woman MLBer Will Probably Pitch
19/05/2015 Duração: 03minContemporary women's baseball chronicler Jennifer Ring says the fastest women pitchers currently hit speeds in the 80s (mph) and it keeps going up. Steve Mirsky reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Seashell Shapes Show Strength for Safety
15/05/2015 Duração: 02minAnalysis of clamshell and screw-shaped shells reveals the structures withstand much greater forces than would a simple sphere or cylinder. Cynthia Graber reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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In the Future Robopets Won't Be Far-Fetched
14/05/2015 Duração: 01minAn animal behaviorist ponders a future where some Spots are robots. Larry Greenemeier reports
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Crop Rotation Works in the Sea, Too
13/05/2015 Duração: 01minModels show that leaving sea cucumbers unharvested in some underwater zones for two years at a time stabilizes the overall population and actually increases yield for fishers. Cynthia Graber reports
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Food for Sale Everywhere Fuels Obesity Epidemic
12/05/2015 Duração: 01minA study from the National Bureau of Economic Research blames 40 percent of the rise in obesity on the ubiquity of supercenters, warehouse clubs and restaurants. Gretchen Cuda Kroen reports
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Netflix CEO Peers at Crystal Ball to See TV's Future
11/05/2015 Duração: 03minReed Hastings, CEO of Netflix, gave his view of the next couple of decades in the evolution of TV-watching at the re:publica 15 digital culture conference in Berlin on May 5 Learn more about your ad choices. Visit megaphone.fm/adchoices
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May 9 Is Big Day for the Birds
08/05/2015 Duração: 03minCornell Lab of Ornithology's Chris Wood explains the May 9 Global Big Day event, in which birders worldwide are invited to spot birds and upload their findings to the eBird database. Steve Mirsky reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Mars Travelers Could Suffer Radiation Brain Damage
07/05/2015 Duração: 01minMice exposed to radiation akin to what astronauts to Mars would receive experienced cognitive impairment. Lee Billings reports
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Wheat Genes Could Bring Back Chestnut
06/05/2015 Duração: 01minScientists have introduced genes into the American chestnut from wheat that help disarm the fungus that killed almost all three billion of the trees in the eastern U.S. David Biello reports