Science Friday http://www.sciencefriday.com/video Science Friday, as heard on NPR, is a weekly discussion of the latest news in science, technology, health, and the environment hosted by Ira Flatow. Ira interviews scientists, authors, and policymakers, and listeners can call in and ask questions as well. Hear it each week on NPR stations nationwide -- or online! Science videos from ScienceFriday.com. Science Friday, as heard on NPR, is a weekly discussion of the latest news in science, technology, health, and the environment hosted by Ira Flatow. Ira interviews scientists, authors, and policymakers, and listeners can call in and ask questions as well. Watch the latest science videos from the Science Friday website. en-us ScienceFriday Inc 2008 Ira Flatow podcast@sciencefriday.com podcast@sciencefriday.com (Ira Flatow) scifri@sciencefriday.com podcast@sciencefriday.com http://www.sciencefriday.com/images/sbwlogo.gif http://www.sciencefriday.com 144 56 // science friday podcast science technology environment health medicine scientist NPR News public radio video ira flatow news, radio, video, science, technology, environment, health, medicine no Friday, 05 Mar 2010 14:12:00 GMT Friday, 05 Mar 2010 14:12:00 GMT http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/resistorguitar-021210.mp4 Friday, 05 Mar 2010 14:10:00 GMT podcast@sciencefriday.com Forget the air guitar solos, go electric for under $10. Sound artist Ranjit Bhatnagar, a member of NYC Resistor, specializes in building cheap, DIY instruments. He explains how to make an electric guitar from a plank of wood, some wire, a magnet and a guitar string. 00:03:07 guitar diy music no ScienceFriday.com Forget the air guitar solos, go electric for under $10. Forget the air guitar solos, go electric for under $10. Sound artist Ranjit Bhatnagar, a member of NYC Resistor, specializes in building cheap, DIY instruments. He explains how to make an electric guitar from a plank of wood, some wire, a magnet and a guitar string. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/coral-022610.mp4 Friday, 26 Feb 2010 14:10:00 GMT podcast@sciencefriday.com It's a tough time to be a coral. Marine scientists John Bruno and Elizabeth Selig analyzed over 8000 coral surveys from all over the world to see if Marine Protected Areas had any positive effect on coral. 00:03:04 dolphin marine mammal sea ocean biology no ScienceFriday.com It's a tough time to be a coral. Can underwater parks help? It's a tough time to be a coral. Marine scientists John Bruno and Elizabeth Selig analyzed over 8000 coral surveys from all over the world to see if Marine Protected Areas had any positive effect on coral. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/dolphin-021910.mp4 Friday, 19 Feb 2010 14:10:00 GMT podcast@sciencefriday.com The Navy cares for over 100 marine mammals--mainly dolphins and sea lions. Veterinarian Cynthia Smith explains how their health is monitored. 00:03:28 dolphin marine mammal sea ocean biology no ScienceFriday.com The Navy cares for over 100 marine mammals. A vet describes how they keep the animals healthy. The Navy cares for over 100 marine mammals--mainly dolphins and sea lions. Veterinarian Cynthia Smith explains how their health is monitored. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/venation-021210.mp4 Friday, 12 Feb 2010 14:10:00 GMT podcast@sciencefriday.com Leaves have an intricate web of veins that transport nutrients and water and provide structural support. But what determines the pattern of venation? Two physicists investigated this question using sophisticated algorithms and fluorescent dye. 00:05:01 leaves biology plants no ScienceFriday.com Physicists investigate leaf venation with sophisticated algorithms and fluorescent dye. Leaves have an intricate web of veins that transport nutrients and water and provide structural support. But what determines the pattern of venation? Two physicists investigated this question using sophisticated algorithms and fluorescent dye. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/dinocolor-020510.mp4 Friday, 5 Feb 2010 14:10:00 GMT podcast@sciencefriday.com Scientists analyzed melanin in fossil feathers to reconstruct the colors of a 150-million-year-old dinosaur. Forget those drab grays and greens, this dinosaur was flashy. 00:02:14 dinosaur evolution color biology paleontology no ScienceFriday.com Scientists reconstructed the colors of a 150-million-year-old feathered dinosaur. Scientists analyzed melanin in fossil feathers to reconstruct the colors of a 150-million-year-old dinosaur. Forget those drab grays and greens, this dinosaur was flashy. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/roboshakespeare-020410.mp4 Friday, 5 Feb 2010 14:09:00 GMT podcast@sciencefriday.com Robots were cast in an ultra-modern interpretation of Shakespeare's A Midsummer Night's Dream. Kevin Pratt, of Texas A and M University, explains the research angle of putting search and rescue robots on the stage. 00:01:47 adaptation natural selection bdelloid biology sex no ScienceFriday.com Robots landed (non-speaking) roles in a production of Shakespeare's A Midsummer Night's Dream. Robots were cast in an ultra-modern interpretation of Shakespeare's A Midsummer Night's Dream. Kevin Pratt, of Texas A and M University, explains the research angle of putting search and rescue robots on the stage. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/bdelloid-012910.mp4 Friday, 29 Jan 2010 14:10:00 GMT podcast@sciencefriday.com Bdelloid rotifers haven’t had sex for at least thirty million years and that’s puzzling. Most asexual animals are doomed to extinction. Two biologists explain the extraordinary adaptations that allow rotifers to survive without sex. 00:04:18 adaptation natural selection bdelloid biology sex no ScienceFriday.com Bdelloid rotifers haven’t had sex for thirty million years and that’s puzzling. Bdelloid rotifers haven’t had sex for at least thirty million years and that’s puzzling. Most asexual animals are doomed to extinction. Two biologists explain the extraordinary adaptations that allow rotifers to survive without sex. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/brendamatt-012210.mp4 Friday, 22 Jan 2010 14:10:00 GMT podcast@sciencefriday.com Brenda Tan and Matthew Cost, high school seniors from Trinity School in New York City, used a technique called DNA barcoding to find out what species were present in over 200 animal products. Their results suggest buyers should beware! 00:03:33 dna barcoding genes genetics high school kids science food no ScienceFriday.com NYC high school seniors use "DNA barcoding" to analyze the makeup of over 200 products. Brenda Tan and Matthew Cost, high school seniors from Trinity School in New York City, used a technique called DNA barcoding to find out what species were present in over 200 animal products. Their results suggest buyers should beware! http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/quarry-010810.mp4 Friday, 08 Jan 2010 14:10:00 GMT podcast@sciencefriday.com Paul Olsen, of Columbia University's Lamont-Doherty Earth Observatory, takes us to a quarry in New Jersey and explains what makes basalt ideal for storing carbon dioxide emissions. 00:02:47 geology carbon dioxide emissions energy sequestration CO2 no ScienceFriday.com Visit a quarry and find out what makes basalt ideal for storing carbon dioxide emissions. Paul Olsen, of Columbia University's Lamont-Doherty Earth Observatory, takes us to a quarry in New Jersey and explains what makes basalt ideal for storing carbon dioxide emissions. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/snowflake-010110.mp4 Friday, 01 Jan 2010 14:10:00 GMT podcast@sciencefriday.com Winter weather means more than sledding and snowmen. Bullet rosettes, stellar plates and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Physicist and snowflake expert Kenneth Libbrecht shares secrets of the snowflake. 00:03:52 snow snowflake crystal chemistry physics no ScienceFriday.com Winter weather means more than sledding and snowmen. Learn the secrets of the snowflake. Winter weather means more than sledding and snowmen. Bullet rosettes, stellar plates and capped columns are just a few of the varieties of snow crystal you can find in your backyard. Physicist and snowflake expert Kenneth Libbrecht shares secrets of the snowflake. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/eggnog-121809.mp4 Friday, 18 Dec 2009 14:10:00 GMT podcast@sciencefriday.com A perennial holiday dilemma: will alcohol kill the bacteria in homemade eggnog? Microbiologists Vince Fischetti and Raymond Schuch, from The Rockefeller University, ran an experiment in the lab to see whether salmonella can survive in a vat of spiked eggnog. 00:04:01 eggnog food christmas microbiology salmonella bacteria no ScienceFriday.com A perennial holiday dilemma: will alcohol kill the bacteria in homemade eggnog? A perennial holiday dilemma: will alcohol kill the bacteria in homemade eggnog? Microbiologists Vince Fischetti and Raymond Schuch, from The Rockefeller University, ran an experiment in the lab to see whether salmonella can survive in a vat of spiked eggnog. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/lightswitch-120409.mp4 Friday, 04 Dec 2009 14:10:00 GMT podcast@sciencefriday.com "Food coma" takes on new meaning when you feed nematodes a light-sensitive chemical. After the meal, the worms become paralyzed if exposed to UV light. Remarkably, the effects can be reversed under visible light. 00:02:51 light photochemical nematode worm chemistry no ScienceFriday.com "Food coma" takes on new meaning when you feed nematodes a light-sensitive chemical. "Food coma" takes on new meaning when you feed nematodes a light-sensitive chemical. After the meal, the worms become paralyzed if exposed to UV light. Remarkably, the effects can be reversed under visible light. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/stress-112009.mp4 Friday, 20 Nov 2009 14:10:00 GMT podcast@sciencefriday.com It's the holiday season. How are you coping? 00:03:19 stress psychology mental health no ScienceFriday.com It's the holiday season. How are you coping? It's the holiday season. How are you coping? http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/facemap-111309.mp4 Friday, 13 Nov 2009 14:10:00 GMT podcast@sciencefriday.com Like a digital video puppet, the facial expressions of one person can be cloned in real time and mapped onto the digital face of another person. 00:04:07 computer avatar clone digital expression psychology behavior no ScienceFriday.com One person's facial expressions can be mapped in real time onto the digital face of another person. Like a digital video puppet, the facial expressions of one person can be cloned in real time and mapped onto the digital face of another person. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/creaturecast2.mp4 Friday, 6 Nov 2009 14:10:00 GMT podcast@sciencefriday.com How did multicellular organisms evolve? Sophia Tintori and Cassandra Extavour, developmental biologist at Harvard, talk about the development of multicellular organisms. 00:04:34 cell biology multicellular germ no ScienceFriday.com How did multicellular organisms evolve? How did multicellular organisms evolve? Sophia Tintori and Cassandra Extavour, developmental biologist at Harvard, talk about the development of multicellular organisms. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/giantpumpkin-10108.mp4 Friday, 30 Oct 2009 14:10:00 GMT podcast@sciencefriday.com Robert Sabin has been growing giant pumpkins (the breed is Atlantic giant) for over ten years. Does his top pumpkin have the heft to win the Long Island Giant Pumpkin Weigh-Off at Hicks Nurseries? Find out. 00:04:07 pumpkin halloween agriculture gardening plant no ScienceFriday.com At the Long Island Giant Pumpkin Weigh-Off, bigger is definitely better. Robert Sabin has been growing giant pumpkins (the breed is Atlantic giant) for over ten years. Does his top pumpkin have the heft to win the Long Island Giant Pumpkin Weigh-Off at Hicks Nurseries? Find out. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/crittercam-102309.mp4 Friday, 23 Oct 2009 14:10:00 GMT podcast@sciencefriday.com Sam Easterson 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. 00:03:28 wildlife photography art video critter no ScienceFriday.com A virtual museum compiles footage taken from cameras strapped to animals. Sam Easterson 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. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/birdband-101609.mp4 Friday, 16 Oct 2009 14:10:00 GMT podcast@sciencefriday.com Braddock Bay, on the southern shore of Lake Ontario, is a prime pit stop for migrating birds. In a converted hot dog stand near the Bay, ornithologists and volunteers capture, study and release about 10,000 passing birds each year. 00:03:49 bird band ornithology field research no ScienceFriday.com Volunteers capture, study and release about 10,000 birds a year. Braddock Bay, on the southern shore of Lake Ontario, is a prime pit stop for migrating birds. In a converted hot dog stand near the Bay, ornithologists and volunteers capture, study and release about 10,000 passing birds each year. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/tyson-100209.mp4 Friday, 16 Oct 2009 13:10:00 GMT podcast@sciencefriday.com Neil DeGrasse Tyson recounts the controversy about America's favorite former planet -- Pluto. He talks with Ira in the NPR studio in New York about the new rules for planetary status. 00:02:26 pluto solar system space degrasse tyson no ScienceFriday.com Neil DeGrasse Tyson recounts the controversy about America's favorite former planet -- Pluto. Neil DeGrasse Tyson recounts the controversy about America's favorite former planet -- Pluto. He talks with Ira in the NPR studio in New York about the new rules for planetary status. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/birdband-100909.mp4 Friday, 9 Oct 2009 14:10:00 GMT podcast@sciencefriday.com David Bonter, ornithologist at Cornell University and vice president of the Braddock Bay Bird Observatory, took us to Braddock Bay to learn how to band birds. Watch Bonter put a tiny aluminum bracelet on a swamp sparrow. 00:03:14 bird band ornithology no ScienceFriday.com Ornithologist David Bonter puts a tiny aluminum bracelet on a swamp sparrow. David Bonter, ornithologist at Cornell University and vice president of the Braddock Bay Bird Observatory, took us to Braddock Bay to learn how to band birds. Watch Bonter put a tiny aluminum bracelet on a swamp sparrow. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/river-100209.mp4 Friday, 2 Oct 2009 14:10:00 GMT podcast@sciencefriday.com For nearly 100 years, scientists have been trying to create a meandering river in the lab. Christian Braudrick and Bill Dietrich of University of California, Berkeley, have finally found a recipe. Go into the lab to see the mini meandering river flow. 00:03:45 river geology earth planet hydrology no ScienceFriday.com For nearly 100 years, scientists have been trying to create a meandering river in the lab. For nearly 100 years, scientists have been trying to create a meandering river in the lab. Christian Braudrick and Bill Dietrich of University of California, Berkeley, have finally found a recipe. Go into the lab to see the mini meandering river flow. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/turtle-092509.mp4 Friday, 25 Sep 2009 14:10:00 GMT podcast@sciencefriday.com Michael Musnick studies wood turtles in the Great Swamp -- a stretch of wetland about 60 miles north of New York City. He found turtles dying in the railroad tracks and proposed a solution to New York's Metropolitan Transportation Authority: tiny turtle bridges. 00:02:31 agriculture garden tomato late blight no ScienceFriday.com Turtles are dying in railroad tracks. One man has a solution: tiny turtle bridges. Michael Musnick studies wood turtles in the Great Swamp -- a stretch of wetland about 60 miles north of New York City. He found turtles dying in the railroad tracks and proposed a solution to New York's Metropolitan Transportation Authority: tiny turtle bridges. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/blight-091809.mp4 Friday, 18 Sep 2009 14:10:00 GMT podcast@sciencefriday.com Tim Stark, tomato farmer and owner of Eckerton Hill Farm in Lobachsville, PA, describes his battle with late blight this summer. 00:03:52 agriculture garden tomato late blight no ScienceFriday.com Tim Stark, a tomato farmer, describes his battle with late blight this summer. Tim Stark, tomato farmer and proprietor of Eckerton Hill Farm in Lobachsville, PA, describes his battle with late blight this summer. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/creaturecast-091109.mp4 Friday, 11 Sep 2009 14:10:00 GMT podcast@sciencefriday.com Squid (the kind served as calamari) can make their skin pulse different colors. Biologist Casey Dunn and his student Sophia Tintori were interested in how this works, so they asked their colleagues at the University of California, Santa Barbara for an explanation. Tintori explains the phenomenon in the first episode of what they've dubbed CreatureCast. 00:08:47 squid marine sea ocean animal creaturecast no ScienceFriday.com Squid--the kind served as calamari--can make their skin pulse different colors. Squid (the kind served as calamari) can make their skin pulse different colors. Biologist Casey Dunn and his student Sophia Tintori were interested in how this works, so they asked their colleagues at the University of California, Santa Barbara for an explanation. Tintori explains the phenomenon in the first episode of what they've dubbed CreatureCast. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/astronaut-090209.mp4 Friday, 04 Sep 2009 14:10:00 GMT podcast@sciencefriday.com The New York Hall of Science in Queens, NY opened a space-themed mini golf course this summer. Charles Camarda, a NASA engineer and former astronaut, agreed to play a round, and explain some of the science as he putted. 00:03:00 space mini golf astronaut no ScienceFriday.com A former astronaut plays a round of putt putt at a space-themed mini golf course. The New York Hall of Science in Queens, NY opened a space-themed mini golf course this summer. Charles Camarda, a NASA engineer and former astronaut, agreed to play a round, and explain some of the science as he putted. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/eggs-082809.mp4 Friday, 28 Aug 2009 14:10:00 GMT podcast@sciencefriday.com Chef Wylie Dufresne, the owner of New York City restaurant wd-50, experiments with food, literally. He has lab notebooks detailing what certain chemicals do to certain dishes. Science Friday stopped in at Dufresne's kitchen to see how he prepares his scientific spin on eggs Benedict. 00:03:22 cooking food science molecular gastronomy eggs no ScienceFriday.com Chef Wylie Dufresne prepares his scientific spin on eggs Benedict. Chef Wylie Dufresne, the owner of New York City restaurant wd-50, experiments with food, literally. He has lab notebooks detailing what certain chemicals do to certain dishes. Science Friday stopped in at Dufresne's kitchen to see how he prepares his scientific spin on eggs Benedict. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/round-082109.mp4 Friday, 21 Aug 2009 14:10:00 GMT podcast@sciencefriday.com Science Friday brings you a highlight reel of science news from the week, including: sea worms that drop bioluminescent bombs, how deepwater rice avoids drowning and what happens when bacteria and fruit fly immune cells meet. 00:04:18 roundup sea worm rice agriculture bacteria immune cell no ScienceFriday.com From bomb-dropping sea worms to snorkeling rice, get the science news highlights from the week. Science Friday brings you a highlight reel of science news from the week, including: sea worms that drop bioluminescent bombs, how deepwater rice avoids drowning and what happens when bacteria and fruit fly immune cells meet. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/jellyfish-081409.mp4 Friday, 14 Aug 2009 14:10:00 GMT podcast@sciencefriday.com John Dabiri, bioengineer at Caltech, has developed new techniques for studying the motion of aquatic animals. In a recent study in the journal Nature, Dabiri and colleagues explain how swimming animals mix the ocean. 00:03:44 museum art science exhibit no ScienceFriday.com Bioengineers squirted jellyfish with fluorescent dye and shined lasers at them to learn how they swim. John Dabiri, bioengineer at Caltech, has developed new techniques for studying the motion of aquatic animals. In a recent study in the journal Nature, Dabiri and colleagues explain how swimming animals mix the ocean. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/exhibit-073109.mp4 Friday, 31 July 2009 14:10:00 GMT podcast@sciencefriday.com No guesswork is allowed in museum art: scientists review everything from the color and texture of the tree bark to the facial expression of the animals in dioramas. Go behind the scenes at the American Museum of Natural History with artist Steve Quinn to see what is involved in creating an exhibition. 00:03:44 museum art science exhibit no ScienceFriday.com Go behind the scenes at the American Museum of Natural History to see how artists create an exhibition. No guesswork is allowed in museum art: scientists review everything from the color and texture of the tree bark to the facial expression of the animals in dioramas. Go behind the scenes at the American Museum of Natural History with artist Steve Quinn to see what is involved in creating an exhibition. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/heartbeat-072409.mp4 Friday, 24 July 2009 14:10:00 GMT podcast@sciencefriday.com Put rat heart cells on a piece of synthetic mesh and within a few days, the mesh starts beating in the petri dish. The hope is that down the road the beating patch be used like a living band-aid to treat damaged hearts. 00:02:29 heart organ medicine cardiovascular no ScienceFriday.com Put rat heart cells on a piece of synthetic mesh and within a few days, the mesh starts beating in the petri dish. Put rat heart cells on a piece of synthetic mesh and within a few days, the mesh starts beating in the petri dish. The hope is that down the road the beating patch be used like a living band-aid to treat damaged hearts. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/mothjam-071709.mp4 Friday, 17 July 2009 14:10:00 GMT podcast@sciencefriday.com For the last 50 million years, bats and moths have been engaged in an arms race: moths evolving new tricks to escape bats and bats developing new ways to catch moths. William Conner, a biologist at Wake Forest University, studies this interaction by filming bat attacks. 00:03:30 bat moth predator prey no ScienceFriday.com Watch high speed video of the tricks bats use to catch moths and the countermeasures moths take to escape bats. For the last 50 million years, bats and moths have been engaged in an arms race: moths evolving new tricks to escape bats and bats developing new ways to catch moths. William Conner, a biologist at Wake Forest University, studies this interaction by filming bat attacks. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/moss-071009.mp4 Friday, 10 July 2009 14:10:00 GMT podcast@sciencefriday.com Summertime doesn’t have to mean hours behind the lawn mower, at least for shade-dwellers. David Benner, horticulturist and moss enthusiast, cut grass out of his life 40 years ago. Benner shares tips for moss cultivation. 00:04:04 grass lawn garden summer moss no ScienceFriday.com Ready to cut grass out of your life? Learn how to cultivate moss. Summertime doesn’t have to mean hours behind the lawn mower, at least for shade-dwellers. David Benner, horticulturist and moss enthusiast, cut grass out of his life 40 years ago. Benner shares tips for moss cultivation. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/fireworks-070309.mp4 Friday, 03 July 2009 14:10:00 GMT podcast@sciencefriday.com July Fourth: A day for picnics, parades and chemistry. Bassam Shakhashiri, chemistry professor at the University of Wisconsin-Madison, explains the science of fireworks. 00:01:32 july 4 summer diy fireworks no ScienceFriday.com Learn about the science of fireworks. July Fourth: A day for picnics, parades and chemistry. Bassam Shakhashiri, chemistry professor at the University of Wisconsin-Madison, explains the science of fireworks. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/bubbleflame-070309.mp4 Friday, 03 July 2009 14:10:00 GMT podcast@sciencefriday.com Theo Gray, author of Mad Science, demonstrates what happens when you fill bubbles with hydrogen and light them on fire. Warning: SciFri does not advise trying this at home. 00:02:10 explosion chemistry bubble DIY no ScienceFriday.com This is what happens when you fill bubbles with hydrogen and light them on fire. Theo Gray, author of Mad Science, demonstrates what happens when you fill bubbles with hydrogen and light them on fire. Warning: SciFri does not advise trying this at home. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/vbat-061809.mp4 Friday, 26 June 2009 14:10:00 GMT podcast@sciencefriday.com This small unmanned aerial vehicle (UAV) takes off like a helicopter but flies like an airplane. The vehicle, named V-Bat, can fly at over 100 mph for more than five hours. Stephen Morris, the president of the company that designed the prototype, explains how it works. 00:02:09 airplane engineering no ScienceFriday.com Meet the V-Bat--8 feet tall, seventy pounds, no pilot required. This small unmanned aerial vehicle (UAV) takes off like a helicopter but flies like an airplane. The vehicle, named V-Bat, can fly at over 100 mph for more than five hours. Stephen Morris, the president of the company that designed the prototype, explains how it works. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/whale-061909.mp4 Friday, 19 June 2009 14:10:00 GMT podcast@sciencefriday.com For years, longline fishermen in Alaska have complained that whales have been stealing their sablefish catch. A team of researchers mounted a video camera to a fishing line and caught a sperm whale stealing. 00:02:32 whale fishing ocean oceanography no ScienceFriday.com Researchers attached a video camera to a fishing line and caught a sperm whale stealing. For years, longline fishermen in Alaska have complained that whales have been stealing their sablefish catch. A team of researchers mounted a video camera to a fishing line and caught a sperm whale stealing, providing new insight into whale behavior. http://www.podtrac.com/pts/redirect.mp4?http://media.libsyn.com/media/sciencefriday/slither-061209.mp4 Friday, 12 June 2009 14:10:00 GMT podcast@sciencefriday.com Researchers filmed snakes slithering up inclines and sliding down plains; they outfitted the snakes in jackets and photographed them through jello, all to better understand snake locomotion. 00:03:21 snake slither locomotion mechanical engineering no ScienceFriday.com To study snake locomotion, researchers filmed snakes slithering up and down hills, outfitted the snakes in jackets and photographed them through jello. Researchers filmed snakes slithering up inclines and sliding down plains; they outfitted the snakes in jackets and photographed them through jello, all to better understand snake locomotion.