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Science Friday

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Language: English
Category: Science and Medicine / Science and Medicine
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Weekly podcast of 'Science Friday,' a science and technology news discussion program heard on public radio stations across the USA.


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Real-Life Physics Problems Star On TV
The stars of The Big Bang Theory are two fictional Caltech physicists, but the physics problems they study are real. Bill Prady, the program's co-creator and executive producer, talks about including real-world science in the script, from dark matter to magnetic monopoles....

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[ Fri, 20 Nov 2009 18:08:52 -0500 ]


Book Recounts Challenges Of Eradicating Smallpox
In Smallpox: The Death of a Disease, Dr. D.A. Henderson recounts the history of the deadly virus, from the development of the first vaccine in the late 18th century to his involvement in the successful global eradication campaign in the 1960s and 70s....

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[ Fri, 20 Nov 2009 18:08:42 -0500 ]


Debating Benefits, Risks Of Routine Mammograms
New guidelines from the U.S. Preventive Services Task Force recommend women start getting routine mammograms at age 50, not 40. Ira Flatow and guests take a closer look at the guidelines and what they mean for women's health....

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[ Fri, 20 Nov 2009 18:08:37 -0500 ]


Talking Turkey About Holiday Stress
The holiday season is here and for many that can mean a surge in stress. But what is stress exactly? Science Friday hit the streets of New York City to gauge stress levels and consulted with experts on the effects of stress and strategies for how to cope....

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[ Fri, 20 Nov 2009 18:08:34 -0500 ]


Personalizing Solar Power
Researchers are hoping to improve solar energy installations by coupling a solar panel to an efficient hydrolysis unit that splits water into oxygen and hydrogen. Daniel Nocera of MIT says the approach could lead to personal solar power units that could get many houses off the grid....

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[ Fri, 20 Nov 2009 18:08:31 -0500 ]


Rethinking The Human Future In Space
With NASA reporting a "significant amount" of water on the lunar surface, is it time to re-examine our priorities regarding living and working in space? Mark Sykes, director of the Planetary Science Institute, talks about why and how people should venture beyond Earth....

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[ Fri, 20 Nov 2009 18:08:24 -0500 ]


Brushing Up On Tropical Diseases
Dengue fever, malaria and other tropical diseases took center stage at the American Society of Tropical Medicine and Hygiene conference. Nathan Seppa of Science News offers details, including a strange story of palm trees, fruit bats and human infection....

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[ Fri, 20 Nov 2009 18:08:21 -0500 ]


One-Woman Show Explores Human Side Of Health Care
Actress Anna Deavere Smith traveled across the country interviewing people about their thoughts on health care. From an injured bull rider to a medical school dean, she recounts what she heard through monologues in her latest documentary-style theater production, Let Me Down Easy....

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[ Fri, 13 Nov 2009 18:17:09 -0500 ]


Two Graphic Novels Explain Science, Colorfully
Moving beyond traditional superheroes, two new graphic novels recount the epic tales of scientists and the research that made them famous. Ira Flatow talks with authors Michael Keller and Apostolos Doxiadis about their graphic novels on natural selection and logic....

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[ Fri, 13 Nov 2009 18:17:01 -0500 ]


Clone That Smile, Digitally
Researchers have figured out how to track the facial expressions of one person and map those movements onto a digital image of another person's face in real time. The result is something like a digital video puppet, which psychologists say may reveal something about human nature....

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[ Fri, 13 Nov 2009 18:16:53 -0500 ]


Therapists Split On Multiple Personalities
Can people develop different personalities in response to abuse? Some therapists say up to one percent of the population suffer from dissociative identity disorder. Others say the disease doesn't exist, or is very rare. Two therapists discuss the controversial diagnosis....

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[ Fri, 13 Nov 2009 18:16:39 -0500 ]


Sailing Through Space, On A Starboard Tack
In the vacuum of space, photons — not wind — may someday fill the sails of lightweight spacecraft, propelling them without need for engines or fuel. Louis Friedman, executive director of The Planetary Society, discusses the society's plans for a sailing spaceship prototype....

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[ Fri, 13 Nov 2009 18:16:37 -0500 ]


Do Moon Craters Harbor Caches Of Water Ice?
A NASA rocket slammed into a lunar crater in October. A second spacecraft followed minutes later, taking inventory of kicked-up debris and sending data to Earth. Scientists have now analyzed those data, which may reveal whether the moon harbors significant quantities of water ice....

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[ Fri, 13 Nov 2009 18:16:25 -0500 ]


Considering Values In The Health Care Debate
As health care legislation moves through Congress, bioethicist Thomas H. Murray asks if enough attention is being paid to concepts such as justice, fairness and liberty. Murray and health care economist Len Nichols discuss the role of values in the health care debate....

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[ Sat, 07 Nov 2009 03:32:33 -0500 ]


Giving Athletes A Heads-Up On Concussions
Football players take a lot of hits, but when does hard-headed play go too far? New research suggests that head trauma can do lasting damage. Two brain researchers talk about what happens in the brain when a player gets hit, and how athletes can better protect themselves....

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[ Sat, 07 Nov 2009 03:32:30 -0500 ]


Students Build Living Microbial Machines
At the 2009 International Genetically Engineered Machine competition, undergraduates from all over the world unveiled the living machines they'd created with snippets of DNA, from bacteria that change color when they detect pollutants to ones that secrete non-toxic superglue....

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[ Sat, 07 Nov 2009 03:32:26 -0500 ]


Can Oceans Survive The Human Appetite For Seafood?
Faced with declining fish stocks, many nations are looking for sustainable ways to have their fish — and eat it too. But how much fishing is too much? Oceanographer Sylvia Earle discusses this and other topics in her book The World is Blue: How Our Fate and the Ocean's Are One....

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[ Sat, 07 Nov 2009 03:32:22 -0500 ]


Building A Better Lightbulb
The U.S. Department of Energy is offering $10 million to the first individual or company to develop an energy-efficient LED replacement for the standard 60-watt incandescent bulb. DOE lighting program manager James Brodrick discusses the L Prize, and what makes a better bulb....

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[ Sat, 07 Nov 2009 03:32:17 -0500 ]


A Head-Shrinker Studies The Zombie Brain
Psychiatrist Steven Schlozman recently expanded his practice from humans to the inhuman. Poring over his library of classic zombie films, he came up with neurobiological explanations for the behavior of the undead, such as lack of a frontal lobe and an overactive amygdala....

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[ Fri, 30 Oct 2009 18:47:51 -0400 ]


Halloween: A Holiday For Gadgets
For gadget lovers, Halloween is more geeky than spooky. Mark Frauenfelder, editor-in-chief of Make Magazine, talks about the geekiest do-it-yourself Halloween costumes and decorations, from spray foam guts and singing pumpkins to a fortune-teller costume built on a Segway....

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[ Fri, 30 Oct 2009 18:47:46 -0400 ]


People ... People Who Eat People
In her book Dinner With a Cannibal, writer Carole Travis-Henikoff documents the long — and often hidden — history of cannibalism in humans. Travis-Henikoff notes that cannibalism wasn't always taboo, whether it be eating loved ones out of respect or eating enemies out of disdain....

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[ Fri, 30 Oct 2009 18:47:42 -0400 ]


Why Runners Like To Feel The Burn
What compels hundreds of thousands of runners to compete in marathons every year? Ira Flatow and guests discuss running research — from how humans are adapted specifically for long-distance running to why working up a sweat might be good for the brain, as well as the body....

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[ Fri, 30 Oct 2009 18:47:39 -0400 ]


Happy Birthday, Internet
On Oct. 29, 1969, around 10:30 P.M., a message from one computer was sent over a modified phone line to another computer hundreds of miles away. Some say the Internet was born that day. UCLA computer scientist Leonard Kleinrock, who was there, gives his account....

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[ Fri, 30 Oct 2009 18:47:33 -0400 ]


Examining Gene Therapy As Treatment For Blindness
Reporting in The Lancet, doctors found success in treating Leber's congenital amaurosis, a rare type of blindness, with gene therapy. Study author Katherine High explains how injecting a gene-carrying virus into the eye has improved vision in a handful of patients....

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[ Fri, 30 Oct 2009 18:47:27 -0400 ]


Did Algae Contribute To Mass Extinctions?
Forget asteroids — a new theory says algae were the key to the dinosaurs' extinction millions of years ago. Ecotoxicologist John Rodgers details the evidence for the theory and explains why some algae can be harmful in large quantities, even to present day animal populations....

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[ Fri, 23 Oct 2009 18:03:32 -0400 ]


Seeing The Softer Side Of Nature
In his new book, The Age of Empathy, Frans de Waal says nature has been wrongly depicted to justify a "survival of the fittest" attitude in humans. Drawing on examples from his primate observations, de Waal says it's time for humans to rethink how we treat each other....

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[ Fri, 23 Oct 2009 18:03:27 -0400 ]


Natural Selection Works On Humans, Too
Mining data from the Framingham Heart Study, scientists say they've been able to tease out the effects of natural selection on humans. Evolutionary biologist Stephen Stearns explains how evolutionary forces may produce shorter, rounder, more fertile women in the future....

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[ Fri, 23 Oct 2009 18:03:23 -0400 ]


Seeing Through The Eyes Of An Armadillo
Sam Easterson has refined the art of the critter cam. He is the curator of the Museum of Animal Perspectives — an online repository of "remotely sensed wildlife imagery." All the footage comes from cameras implanted in the landscape or strapped to the backs of animals....

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[ Fri, 23 Oct 2009 18:03:20 -0400 ]


Searching For The Right Hand-Scrubbing Message
Researchers tried various slogans to encourage travelers to lather up after using rest stop toilets, from the disgusting — "Soap it off or eat it later" — to the educational — "Water doesn't kill germs, soap does." Hygiene expert Val Curtis reports on the most effective messages....

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[ Fri, 23 Oct 2009 18:03:14 -0400 ]


Scientists Solve Mystery Of Ear-Splitting Sounds
Reporting in Nature, researchers write that a rare type of neuron in the inner ear may process painfully loud sounds, such as the blast of a jackhammer. Study author Paul Fuchs discusses how his team solved a mystery that had stumped auditory scientists for nearly 50 years....

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[ Fri, 23 Oct 2009 18:03:09 -0400 ]

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