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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Ant Smells Like Blue Cheese for a Reason
15/06/2015 Duración: 01minThe "odorous house ant" smells like blue cheese or rotten coconut because it produces chemical compounds similar to those found in its nose-sakes. Cynthia Graber reports
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Mars Surface Glass Could Hold Ancient Fossils
12/06/2015 Duración: 02minScientists have found ancient "impact glass" on the surface of Mars, which formed when asteroids struck, a billion or more years ago. If anything was alive at the time, biological materials could be trapped inside. Christopher Intagliata reports
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Is Lying a Good Strategy?
11/06/2015 Duración: 01minA new documentary film presents the science behind when and why people lie. Daisy Yuhas reports
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Wild Chimps Seen Drinking Alcoholic Beverage
09/06/2015 Duración: 03minIn west Africa researchers observed wild chimps seek out and drink fermented tree sap left outside by humans. Karen Hopkin reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Color You Remember Seeing Isn't What You Saw
09/06/2015 Duración: 02minPeople tend to remember a color they saw, for example green-blue teal, as being closer to a more stereotypical variant, such as straight blue or green. Karen Hopkin reports
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Ancient Human Migration Route Marked by Snail Shell "Bread Crumbs"
06/06/2015 Duración: 01minFragments of edible marine snail shells found in Lebanon support the idea that ancient humans went from Africa to Europe through the Levant. Cynthia Graber reports
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"Brainprints" Could Be Future Security ID
05/06/2015 Duración: 03minWe all emit slightly different brain waves in response to stimuli, and researchers say that an individual’s specific "brainprints" could be used to validate our identities. Christopher Intagliata reports
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Frenzy-Feeding Black Hole Makes Galaxy Most Luminous
04/06/2015 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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 Duración: 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