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
-
Little Galaxy Keeps Churning Out Stars
15/11/2015 Duración: 01minThe recently discovered small galaxy Leo P contains only about a hundred-thousandth as many stars as the Milky Way, but it's bucking the small galaxy trend by continuing to make new ones
-
Howler Monkeys Trade Testicles for Decibels
13/11/2015 Duración: 02minAmong howler monkey species, loud calls come at the expense of testicle size and sperm production—or to put it another way, monkeys with the largest testes don't make as much noise
-
Stone Age Pottery Reveals Signs of Beekeeping
12/11/2015 Duración: 01minBeeswax residues found on shards of stone age pottery in the Mediterranean region indicate that humans were keeping honeybees as early as 9,000 years ago
-
What Makes Sand Dunes Sing
11/11/2015 Duración: 03minEngineers at Caltech discovered that for sand dunes to produce sound they need a dry layer on top that amplifies internal frequencies during sand movement. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
-
Brain Rhythms Sync to Musical Beat
10/11/2015 Duración: 02minThe human brain's neurons fire in sync to music, and trained musicians are better at it than are amateurs
-
Brain Responds to Driving Routes Repeatedly
06/11/2015 Duración: 01minLearning detailed navigation information causes the hippocampus to interact with other regions of the brain involved in location
-
Arctic Marine Mammals Swim Up to the Microphone
05/11/2015 Duración: 02minAs Arctic sea ice melts, an underwater recording project reveals that the submerged ecology is undergoing change, with humpbacks and killer whales staying north later in the year. Christopher Intagliata reports
-
Decoy Mating Call Battles Citrus Pest
03/11/2015 Duración: 01minResearchers developed a call that effectively mimics the citrus psyllid's mating song, which could be a weapon against a devastating crop scourge. Christopher Intagliata reports
-
Methane Plumes Bubbling along U.S. Northwest Coast
02/11/2015 Duración: 02minResearchers report a spike in the number of methane plumes along the Northwest coast emanating from depths of about 500 meters, a possible indication that submerged frozen methane is becoming available
-
Cultural Goofs Gear Up Gray Matter
29/10/2015 Duración: 01minPeople exposed to incongruent situations, such as Halloween-themed plates at a Labor Day picnic, performed better on cognitive-reasoning tests and were less likely to make impulse purchases or overeat
-
Whale Poop Drives Global Nutrient Cycling
28/10/2015 Duración: 02minWhales fertilize ocean surface waters with key nutrients like phosphorus, which move through the food chain, and eventually, onto land. Christopher Intagliata reports
-
Road Runoff a No-No for Coho
26/10/2015 Duración: 03minResearchers have found the first direct evidence that coho salmon near U.S. Northwest cities are being killed by chemical runoff from roads and parking lots that reach streams Learn more about your ad choices. Visit megaphone.fm/adchoices
-
Political and Industry Leaders Make a Case for Basic Research
24/10/2015 Duración: 01minAt the “Innovation: An American Imperative” symposium October 20 on Capitol Hill, industry leaders and members of Congress talked about shoring up federal support for basic research and development
-
TV Crime Shows Influence Sex Consent Views
22/10/2015 Duración: 02minCollege students who watched episodes of the various Law & Order episodes had a better understanding of sexual consent issues than those who watched two other crime procedural franchises
-
Beet Juice Could Help Body Beat Altitude
21/10/2015 Duración: 03minBeet juice contains nitrates, which the body can convert to nitric oxide, a chemical that relaxes blood vessels and makes it easier to function in conditions of low oxygen. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
-
Fall Foliage Timing Comes into Clearer Focus
20/10/2015 Duración: 01minResearchers picked apart satellite imagery from two New England forest ecosystems to get a better handle on exactly what factors influence the timing of the color changes of the autumn leaves
-
Apple Thins iPhone Cloud Connections
19/10/2015 Duración: 02minThe company’s moves to have iPhones be less dependent on the cloud and to be more encrypted could mean more user privacy Learn more about your ad choices. Visit megaphone.fm/adchoices
-
Dino's Tail Might Have Whipped It Good
16/10/2015 Duración: 02minResearchers built a physical model of the tail of the late Jurassic dinosaur Apatosaurus and found that its tail tip could have moved at supersonic speed to produce a whip-crack sound Learn more about your ad choices. Visit megaphone.fm/adchoices
-
Babies Move Tongue to Learn New Tongues
15/10/2015 Duración: 02minInfants seemed to be able to differentiate between two different "D" sounds in Hindi—but only when their tongue movements weren't blocked by a teething device. Christopher Intagliata reports
-
Pluto Mission Targets Next Kuiper Belt Object
14/10/2015 Duración: 02minAlan Stern, principal investigator of NASA’s New Horizons Mission, explains that with Pluto in the rearview mirror, the spacecraft will continue on to a smaller Kuiper Belt body