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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Snail's Venom Puts Fish in Insulin Coma
26/01/2015 Duração: 01minThe cone snail's venom contains not only neurotoxins, but insulin, too—which stuns the fish it preys on. Christopher Intagliata reports
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Tech Consequences Voiced by Carnegie Mellon Prez
23/01/2015 Duração: 01minAt the World Economic Forum, Carnegie Mellon president Subra Suresh talks about dealing with the unintended consequences of ever more sophisticated intelligent devices
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Diaper Material Expands Wee Microscope Views
22/01/2015 Duração: 01minThe absorbent material in disposable diapers can expand tissue samples, making more structure visible under light microscopes. Karen Hopkin reports
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Obama Talks Ebola and Climate in His SOTU
21/01/2015 Duração: 03minIn his State of the Union address, the president talked about the need for frameworks to be in place to stop future pandemics and rising worldwide temperatures
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Computer Snoopers Read Electromagnetic Emissions
20/01/2015 Duração: 01minResearchers were able to track the keystrokes of a nearby computer via fluctuations in its electromagnetic radiation output. Christopher Intagliata reports
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Ex-President Wins Campaign against Ghastly Guinea Worm
15/01/2015 Duração: 03minJimmy Carter's efforts against the horribly painful guinea worm parasitic disease have helped lower the number of cases from 3.5 million in 1986 to just 126 last year. Steve Mirsky reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Antibiotics in Blood Can Make Malaria Mosquitoes Mightier
13/01/2015 Duração: 02minThe drugs disrupt mosquitoes' gut bacteria, which appears to make the insects more effective malaria vectors. Christopher Intagliata reports
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Health and Conservation Reminders Cut Consumer Energy Use
12/01/2015 Duração: 01minHouseholds that got weekly messages about the lower pollution they generated via efficiency cut energy use much more than did residents who were told how much money they were saving. Cynthia Graber reports
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Active Sun at Birth Cut Historical Life Spans
09/01/2015 Duração: 03minHigh UV radiation during solar maxima may have degraded expectant mothers' stores of folate, a vitamin essential to development. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Making Evolution Make Microbes Make Products
08/01/2015 Duração: 01minBy selecting for bacteria that can survive only if they make a particular product of interest over multiple iterations, researchers vastly improved yields and decreased production times. Cynthia Graber reports
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Human Eye Sometimes Sees the Unseeable
06/01/2015 Duração: 01minUnder certain conditions people can catch a glimpse of usually invisible infrared light. Karen Hopkin reports
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E.T. May Reveal Itself with Vibration
05/01/2015 Duração: 01minLooking for movement could complement chemical searches for extraterrestrial life. Christopher Intagliata reports
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Large Carnivores Getting Comfy in Europe
02/01/2015 Duração: 01minPopulations of big carnivores such as brown bears, Eurasian lynx, grey wolves and wolverines are stable or increasing in a substantial part of Europe. Cynthia Graber reports
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Lyme Helps Spread Other Tick Infections
31/12/2014 Duração: 02minMice infected with Lyme and the Babesia parasite are more likely to pass on babesiosis than mice infected with babesiosis alone. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Lightning May Sink Mountain Summits
30/12/2014 Duração: 01minMagnetic anomalies in rocks indicate that lightning may be a major player in weathering mountains. Julia Rosen reports
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Budget Bill Stealthily Affects Environment and Energy
23/12/2014 Duração: 02minCongress took advantage of the pressure to pass a budget bill by adding riders that change rules concerning the environment and energy. Josh Fischman reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Plankton Pee May Alter Ocean's Chemistry
22/12/2014 Duração: 02minThe urine of a vast army of tiny fish, jellies and shrimpy things may play an important role in the ocean's nitrogen cycle. Christopher Intagliata reports Learn more about your ad choices. Visit megaphone.fm/adchoices
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Penicillins Reveal Additional Antibacterial Power
19/12/2014 Duração: 01minPenicillin and its relatives have been in wide use since the 1940s, but researchers have only now discovered another way that it thwarts bacteria. Karen Hopkin reports
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Short-Term Fasting Made Mice Healthier
17/12/2014 Duração: 01minMice that ate their entire food for the day in an eight-to-12-hour window had better markers for health than did mice free to eat whenever they wanted. Steve Mirsky reports
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Laser Zap Determines Fruit Ripeness
15/12/2014 Duração: 01minThe way fruit reflects and absorbs laser light may be a good measure of its progression toward peak ripeness. Christopher Intagliata reports