Top Vídeos
Lightning -- one of the great unsolved mysteries.
In 2004, pediatric audiologist Allyson Sisler-Dinwiddie plunged into a world of silence after a car accident damaged her hearing. Under the care of hearing researcher Rene Gifford, she became one of the first test subjects of a new technique to improve cochlear implants, devices that use electrodes to stimulate cells in the inner ear. Since then, Sisler-Dinwiddie and Gifford have worked together to restore other patients' hearing. Watch the pair and their team at Vanderbilt University as they develop a resounding remedy to help people hear again.
A film by Science Friday. Produced in collaboration with the Howard Hughes Medical Institute
Produced by Emily V. Driscoll and Luke Groskin
Directed by Emily V. Driscoll
Filmed by Jeff Nash
Edited by Erika Sutter
Music by Audio Network
Photographs by Vanderbilt University, Rene Gifford, Allyson Sisler-Dinwiddie
Hearing and Cochlear Implant Animations provided by MED-EL Jack Noble, and Vanderbilt Bill Wilkerson Center
Vanderbilt Team and Patients: Stephen Ball, Tim Davis, David Haynes, Kendall Hill, David Lewellen, Jack Noble Alejandro Rivas, and Morgan Stansberry
Project Advisors: Laura A. Helft, Laura Bonetta, Dennis W.C. Liu and Sean B. Carroll - Howard Hughes Medical Institute
Special Thanks to Rene Gifford, Allyson Sisler-Dinwiddie, Keli S. Lawrence, Kate Carney, Charles Johnson, Christian Skotte, Danielle Dana, Ariel Zych, and Jennfier Fenwick
Science Friday/HHMI © 2016
A new study in Science investigates the wisdom of crowds... well, schools. Andrew Berdahl, graduate student at Princeton University, explains that Golden shiner minnows prefer shady habitat. And he and his co-authors found that large groups of fish are better at tracking shady habitats than smaller groups or individuals--a demonstration of collective sensing.How do fish pool their senses? The researchers filmed fish and digitized their movement to try to answer the question.
In 2011, comet Lovejoy traveled through the sun's corona and lived to tell the tale. But its tail was the most telling. Reporting in the journal Science, Cooper Downs, an astrophysicist at Predictive Science Inc. in San Diego, Calif., says that the wiggly path of the comet's tail helps explain the sun's magnetic field.
The Rockaways, a Queens, N.Y. neighborhood, is still recovering from Sandy. Debris from fires lingers on the streets, and buildings torn apart by the storm are crumbling on the beach. But at least for those with restored heat and power (7,000 customers in the area are still without power), there is yet another worry: mold. Peter Corless, a community organizer in the Rockaways, gives us a tour of the neighborhood, while Joan Bennett, a mycologist whose house molded after Katrina flooding, describes the species of fungi she found in her own home after that hurricane and in New Jersey homes post-Sandy.
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For more about this work head to Dr. Lydia Bourouiba's Webstie : http://lbourouiba.mit.edu
Although we all know that sneezes and coughs transmit infections, little research had been done to model how they work. To address this knowledge gap, Dr. Lydia Bourouiba and Dr. John Bush of MIT's Applied Mathematics Lab used high speed cameras and fluid mechanics to reveal why we've grossly underestimated the role of gas clouds in these violent expirations.
Produced by Luke Groskin
Music by Audio Network
Additional Video and Stills by
Lydia Bourouiba
John Bush
Shutterstock
Prelinger Archives
Why do your fingers get pruney after a swim? Only a handful of researchers, including Einar Wilder-Smith, Mark Changizi, and Tom Smulders, have looked into the phenomenon. Publishing in Biology Letters, Smulders lends a hand to the hypothesis, set forth by Changizi and colleagues, that finger wrinkles improve our grip of wet objects.
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As a choreographer who often collaborates with dancers with disabilities, Merry Lynn Morris has long thought that traditional manual and power wheelchair designs were constraining. Her work in integrative dance, along with her experience growing up with a father who relied on a wheelchair, inspired her to invent a power wheelchair designed for artistic expression. Equipped with omnidirectional movement, a rotating seat, and a hands-free control, the chair enables dancers to explore new movement techniques, and may one day provide greater mobility in everyday life, too.
http://www.sciencefriday.com
Up and down the West coast of the U.S., bees are leaving their hives, flying around at night and then suddenly dropping dead. Learn all about this parasitic horror that quietly zombifies these insects and how you can become a real-life zombee hunter.
In her new book, Bones Books and Bell Jars, physician and photographer Andrea Baldeck documents the collection of medical texts, instruments, and specimens at Philadelphia's Mütter Museum.
Bacteria and viruses hitch a ride inside droplets of all kinds—sneezes, raindrops, toilet splatter. By reviewing footage of different types of drops, applied mathematician Lydia Bourouiba records and measures where they disperse in order to better understand how diseases spread. Watch how Bourouiba designs tests—some inescapably humorous and awkward—to study infectious disease transmission.
Publications References:
Bourouiba, L. (2016) A Sneeze. New England Journal of Medicine. 357(8):e15.
Wang, Y. and Bourouiba, L. (2016) Drop impact on small surfaces: thickness and velocity profiles of the expanding sheet in the air. Journal of Fluid Mechanics. 814:510-534.
Gilet, T. and Bourouiba, L. (2015) Fluid fragmentation shapes rain-induced foliar disease transmission. Journal of the Royal Society Interface. 12:20141092.
Gilet, T. and Bourouiba, L. (2014) Rain-induced ejection of pathogens from leaves: revisiting the mechanism of splash-on-film using high-speed visualization. Integrative and Comparative Biology. 54:974–984.
Bourouiba, L., Dehandschoewercker, E., and Bush, J. W. M. (2014) Violent respiratory events: on coughing and sneezing. Journal of Fluid Mechanics. 745: 537-563.
Scharfman, B. E., Techet, A. H., Bush, J. W. M. and Bourouiba, L. (2016) Visualization of sneeze ejecta: steps of fluid fragmentation leading to respiratory droplets. Experiments in Fluids. 57:24--1-9
A film by Science Friday
Produced in collaboration with the Howard Hughes Medical Institute
Produced and Directed by Emily V. Driscoll and Luke Groskin
Filmed by Luke Groskin
Editing and Animations by Jason Drakeford
Music by Audio Network
Additional Photos and Video by
Lydia Bourouiba, Yongji Wang, Tristan Gilet, Sophie Lejeune, Claire Lu, and Eline Dehandschoewercker
Alamy, Pond5, Shutterstock
Project Advisors:
Laura A. Helft, Laura Bonetta, Dennis W.C. Liu and Sean B. Carroll - Howard Hughes Medical Institute
Special Thanks to:
Lydia Bourouiba, Christian Skotte, Danielle Dana, Ariel Zych, Jennfier Fenwick, Timothee Jamin, Stephane Poulain, and Maxime Inizan
To learn more about her research you can visit https://lbourouiba.mit.edu/
Ice can be hard to get a handle on, literally and figuratively. It can be cloudy or clear, as hard as concrete or as soft as a snowflake. Ice experts Erland Schulson, head of the Ice Research Lab at Dartmouth College, and Shintaro Okamoto, founder of Okamoto Studio in Queens, New York, have staked their livelihoods on the slippery material. We asked them what fascinates them about frozen water. (Originally published Jan 27, 2012)
Science Friday salutes a great science teacher. "Office hours are some of my favorite hours of the week," says professor Tom Carlson, a medical doctor, ethnobotanist and instructor of 1700 students annually at the University of California, Berkeley. One of Carlson's former students, SciFri associate senior producer Christopher Intagliata, told us that Carlson's class was the reason he got into science. Listen here: http://www.sciencefriday.com/s....egment/05/31/2013/te
For honey bees, making is a new queens is a simple as adding royal jelly, a unique protein rich secretion, to the cell of a growing larvae. This fairly well studied addition causes a cascade of physiological changes in the growing larvae and voila! A queen is born. However, what causes a baby bumblebee (the fuzzier and more weather-hardy cousins to honey bees) to become royalty remains a mystery. They don’t produce royal jelly but they produce a unique barf for their young. Enter entomologist Hollis Woodard and her students at UC Riverside who hope that by understanding how queens are created, they can mitigate on-going extinction crises in bumblebees species. Woodard and company begin by heading up to San Bernardino mountains outside Los Angeles. Here, the researchers collect emerging queens as they buzz around the blooming Manzanita shrubs. These queens are brought back to the lab, where the establish their own (see through) honeypots. Lavished with food by the lab members, the queens lay dozens of larvae which become daughter drones. These drones are then “milked” for their barf which is analyzed for its chemical properties. Future larvae are hand fed the analyzed barf in various quantities and intervals to determine what factors lead to the generation of queen bees.
Produced by Luke Groskin
Filmed by Christian Baker
Audio Recording by Christopher Intagliata
Music by Audio Network
Additional Footage Provided by Woodard Lab, Creative Commons Media (C.C. BY 2.0),
Cees Van Hengstum (C.C. BY 2.0), Alex Murphy (C.C. BY 2.0),
Blue Line Apiary (C.C. BY 2.0), Pond5
Researchers are on a quest to find the lake trout that remain in Lake Michigan.
Watch budding engineers compete for best bot at the FIRST robotics New York regional. Plus, a special appearance by Dean Kamen
This week, John i s talking about one of his least favorite novels, The Lord of the Flies by William Golding. Lord of the Flies is a novel of ideas, and John doesn't agree with the central idea of the novel, which diminished his enjoyment of the book. The central idea of the book is that everyone has evil in their hearts. Which we don't necessarily agree with. That said, it's a good read, and worth reading.
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The architecture of the social internet itself tells us not to be patient - to load more tweets, to hit refresh for new posts, and to click the top search results. But just because information is new, or algorithmically determined to be most relevant to you, doesn't necessarily mean it's the best or most accurate. So today we're going to teach you some tips to exercise a little more click restraint on the Internet.
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