S2011 E1 • Wadah Khanfar: A historic moment in the Arab world

As a democratic revolution led by tech-empowered young people sweeps the Arab world, Wadah Khanfar, the head of Al Jazeera, shares a profoundly optimistic view of what's happening in Egypt, Tunisia, Libya and beyond -- at this powerful moment when people realized they could step out of their houses and ask for change.

Première diffusion : 2 mars 2011

S2011 E2 • JR's TED Prize wish: Use art to turn the world inside out

JR, a semi-anonymous French street artist, uses his camera to show the world its true face, by pasting photos of the human face across massive canvases. At TED2011, he makes his audacious TED Prize wish: to use art to turn the world inside out. Learn more about his work and learn how you can join in at insideoutproject.net.

Première diffusion : 3 mars 2011

S2011 E3 • Wael Ghonim: Inside the Egyptian revolution

Wael Ghonim is the Google executive who helped jumpstart Egypt's democratic revolution ... with a Facebook page memorializing a victim of the regime's violence. Speaking at TEDxCairo, he tells the inside story of the past two months, when everyday Egyptians showed that "the power of the people is stronger than the people in power."

Première diffusion : 4 mars 2011

S2011 E4 • Bill Gates: How state budgets are breaking US schools

America's school systems are funded by the 50 states. In this fiery talk, Bill Gates says that state budgets are riddled with accounting tricks that disguise the true cost of health care and pensions and weighted with worsening deficits -- with the financing of education at the losing end.

Première diffusion : 4 mars 2011

S2011 E5 • Anthony Atala: Printing a human kidney

Anthony Atala's state-of-the-art lab grows human organs -- from muscles to blood vessels to bladders, and more. At TEDMED, he shows footage of his bio-engineers working with some of its sci-fi gizmos, including an oven-like bioreactor (preheat to 98.6 F) and a machine that "prints" human tissue.

Première diffusion : 7 mars 2011

S2011 E6 • Salman Khan: Let's use video to reinvent education

Salman Khan talks about how and why he created the remarkable Khan Academy, a carefully structured series of educational videos offering complete curricula in math and, now, other subjects. He shows the power of interactive exercises, and calls for teachers to consider flipping the traditional classroom script -- give students video lectures to watch at home, and do "homework" in the classroom with the teacher available to help.

Première diffusion : 9 mars 2011

S2011 E7 • Deb Roy: The birth of a word

MIT researcher Deb Roy wanted to understand how his infant son learned language -- so he wired up his house with videocameras to catch every moment (with exceptions) of his son's life, then parsed 90,000 hours of home video to watch "gaaaa" slowly turn into "water." Astonishing, data-rich research with deep implications for how we learn.

Première diffusion : 10 mars 2011

S2011 E8 • Lisa Gansky: The future of business is the mesh

With streams and rivers drying up because of over-usage, Rob Harmon has implemented an ingenious market mechanism to bring back the water. Farmers and beer companies find their fates intertwined in the intriguing century-old tale of Prickly Pear Creek.

Première diffusion : 17 février 2011

S2011 E9 • David Brooks: The social animal

Tapping into the findings of his latest book, NYTimes columnist David Brooks unpacks new insights into human nature from the cognitive sciences -- insights with massive implications for economics and politics as well as our own self-knowledge. In a talk full of humor, he shows how you can't hope to understand humans as separate individuals making choices based on their conscious awareness.

Première diffusion : 14 mars 2011

S2011 E10 • Janna Levin: The sound the universe makes

We think of space as a silent place. But physicist Janna Levin says the universe has a soundtrack -- a sonic composition that records some of the most dramatic events in outer space. (Black holes, for instance, bang on spacetime like a drum.) An accessible and mind-expanding soundwalk through the universe.

Première diffusion : 15 mars 2011

S2011 E11 • Mark Bezos: A life lesson from a volunteer firefighter

Volunteer firefighter Mark Bezos tells a story of an act of heroism that didn't go quite as expected -- but that taught him a big lesson: Don't wait to be a hero.

Première diffusion : 16 mars 2011

S2011 E12 • Sarah Kay: If I should have a daughter

"If I should have a daughter, instead of Mom, she's gonna call me Point B ... " began spoken word poet Sarah Kay, in a talk that inspired two standing ovations at TED2011. She tells the story of her metamorphosis -- from a wide-eyed teenager soaking in verse at New York's Bowery Poetry Club to a teacher connecting kids with the power of self-expression through Project V.O.I.C.E. -- and gives two breathtaking performances of "B" and "Hiroshima."

Première diffusion : 18 mars 2011

S2011 E13 • Isabel Behncke: Evolution's gift of play, from bonobo apes to humans

With never-before-seen video, primatologist Isabel Behncke Izquierdo (a TED Fellow) shows how bonobo ape society learns from constantly playing -- solo, with friends, even as a prelude to sex. Indeed, play appears to be the bonobos' key to problem-solving and avoiding conflict. If it works for our close cousins, why not for us?

Première diffusion : 22 mars 2011

S2011 E14 • Eythor Bender demos human exoskeletons

Eythor Bender of Berkeley Bionics brings onstage two amazing exoskeletons, HULC and eLEGS -- robotic add-ons that could one day allow a human to carry 200 pounds without tiring, or allow a wheelchair user to stand and walk. It's a powerful onstage demo, with implications for human potential of all kinds.

Première diffusion : 24 mars 2011

S2011 E15 • Ralph Langner: Cracking Stuxnet, a 21st-century cyber weapon

When first discovered in 2010, the Stuxnet computer worm posed a baffling puzzle. Beyond its unusually high level of sophistication loomed a more troubling mystery: its purpose. Ralph Langner and team helped crack the code that revealed this digital warhead's final target -- and its covert origins. In a fascinating look inside cyber-forensics, he explains how.

Première diffusion : 29 mars 2011

S2011 E16 • Handspring Puppet Co.: The genius puppetry behind War Horse

"Puppets always have to try to be alive," says Adrian Kohler of the Handspring Puppet Company, a gloriously ambitious troupe of human and wooden actors. Beginning with the tale of a hyena's subtle paw, puppeteers Kohler and Basil Jones build to the story of their latest astonishment: the wonderfully life-like Joey, the War Horse, who trots (and gallops) convincingly onto the TED stage.

Première diffusion : 30 mars 2011

S2011 E17 • Sebastian Thrun: Google's driverless car

Sebastian Thrun helped build Google's amazing driverless car, powered by a very personal quest to save lives and reduce traffic accidents. Jawdropping video shows the DARPA Challenge-winning car motoring through busy city traffic with no one behind the wheel, and dramatic test drive footage from TED2011 demonstrates how fast the thing can really go

Première diffusion : 31 mars 2011

S2011 E18 • Eric Whitacre: A virtual choir 2,000 voices strong

In a moving and madly viral video last year, composer Eric Whitacre led a virtual choir of singers from around the world. He talks through the creative challenges of making music powered by YouTube, and unveils the first 2 minutes of his new work, "Sleep," with a video choir of 2,052. The full piece premieres April 7 (yes, on YouTube!).

Première diffusion : 1 avril 2011

S2011 E19 • AnnMarie Thomas: Hands-on science with squishy circuits

In a zippy demo at TED U, AnnMarie Thomas shows how two different kinds of homemade play dough can be used to demonstrate electrical properties -- by lighting up LEDs, spinning motors, and turning little kids into circuit designers.

Première diffusion : 4 avril 2011

S2011 E20 • Stanley McChrystal: Listen, learn ... then lead

Four-star general Stanley McChrystal shares what he learned about leadership over his decades in the military. How can you build a sense of shared purpose among people of many ages and skill sets? By listening and learning -- and addressing the possibility of failure.

Première diffusion : 5 avril 2011

S2011 E21 • Morgan Spurlock: The greatest TED Talk ever sold

With humor and persistence, filmmaker Morgan Spurlock dives into the hidden but influential world of brand marketing, on his quest to make a completely sponsored film about sponsorship. (And yes, onstage naming rights for this talk were sponsored too. By whom and for how much? He'll tell you.)

Première diffusion : 6 avril 2011

S2011 E22 • Mick Ebeling: The invention that unlocked a locked-in artist

The nerve disease ALS left graffiti artist TEMPT paralyzed from head to toe, forced to communicate blink by blink. In a remarkable talk at TEDActive, entrepreneur Mick Ebeling shares how he and a team of collaborators built an open-source invention that gave the artist -- and gives others in his circumstance -- the means to make art again.

Première diffusion : 7 avril 2011

S2011 E23 • David Christian: Big history

Backed by stunning illustrations, David Christian narrates a complete history of the universe, from the Big Bang to the Internet, in a riveting 18 minutes. This is "Big History": an enlightening, wide-angle look at complexity, life and humanity, set against our slim share of the cosmic timeline.

Première diffusion : 11 avril 2011

S2011 E24 • Roger Ebert: Remaking my voice

When film critic Roger Ebert lost his lower jaw to cancer, he lost the ability to eat and speak. But he did not lose his voice. In a moving talk from TED2011, Ebert and his wife, Chaz, with friends Dean Ornish and John Hunter, come together to tell his remarkable story.

Première diffusion : 13 avril 2011

S2011 E25 • Marcin Jakubowski: Open-sourced blueprints for civilization

Using wikis and digital fabrication tools, TED Fellow Marcin Jakubowski is open-sourcing the blueprints for 50 farm machines, allowing anyone to build their own tractor or harvester from scratch. And that's only the first step in a project to write an instruction set for an entire self-sustaining village (starting cost: $10,000).

Première diffusion : 14 avril 2011

S2011 E26 • Kathryn Schulz: On being wrong

Most of us will do anything to avoid being wrong. But what if we're wrong about that? "Wrongologist" Kathryn Schulz makes a compelling case for not just admitting but embracing our fallibility.

Première diffusion : 19 avril 2011

S2011 E27 • John Hunter on the World Peace Game

John Hunter puts all the problems of the world on a 4'x5' plywood board -- and lets his 4th-graders solve them. At TED2011, he explains how his World Peace Game engages schoolkids, and why the complex lessons it teaches -- spontaneous, and always surprising -- go further than classroom lectures can.

Première diffusion : 20 avril 2011

S2011 E27 • David Byrne: How architecture helped music evolve

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Première diffusion : 11 février 2011

S2011 E28 • Ric Elias: 3 things I learned while my plane crashed

Ric Elias had a front-row seat on Flight 1549, the plane that crash-landed in the Hudson River in New York in January 2009. What went through his mind as the doomed plane went down? At TED, he tells his story publicly for the first time.

Première diffusion : 22 avril 2011

S2011 E29 • Harvey Fineberg: Are we ready for neo-evolution?

Medical ethicist Harvey Fineberg shows us three paths forward for the ever-evolving human species: to stop evolving completely, to evolve naturally -- or to control the next steps of human evolution, using genetic modification, to make ourselves smarter, faster, better. Neo-evolution is within our grasp. What will we do with it?

Première diffusion : 25 avril 2011

S2011 E30 • Angela Belcher: Using nature to grow batteries

Inspired by an abalone shell, Angela Belcher programs viruses to make elegant nanoscale structures that humans can use. Selecting for high-performing genes through directed evolution, she's produced viruses that can construct powerful new batteries, clean hydrogen fuels and record-breaking solar cells. At TEDxCaltech, she shows us how it's done.

Première diffusion : 27 avril 2011

S2011 E31 • Mike Matas: A next-generation digital book

Software developer Mike Matas demos the first full-length interactive book for the iPad -- with clever, swipeable video and graphics and some very cool data visualizations to play with. The book is "Our Choice," Al Gore's sequel to "An Inconvenient Truth."

Première diffusion : 28 avril 2011

S2011 E32 • Carlo Ratti: Architecture that senses and responds

With his team at SENSEable City Lab, MIT's Carlo Ratti makes cool things by sensing the data we create. He pulls from passive data sets -- like the calls we make, the garbage we throw away -- to create surprising visualizations of city life. And he and his team create dazzling interactive environments from moving water and flying light, powered by simple gestures caught through sensors.

Première diffusion : 3 mai 2011

S2011 E33 • Suzanne Lee: Grow your own clothes

Designer Suzanne Lee shares her experiments in growing a kombucha-based material that can be used like fabric or vegetable leather to make clothing. The process is fascinating, the results are beautiful (though there's still one minor drawback ...) and the potential is simply stunning.

Première diffusion : 4 mai 2011

S2011 E34 • Louie Schwartzberg: The hidden beauty of pollination

Pollination: it's vital to life on Earth, but largely unseen by the human eye. Filmmaker Louie Schwartzberg shows us the intricate world of pollen and pollinators with gorgeous high-speed images from his film "Wings of Life," inspired by the vanishing of one of nature's primary pollinators, the honeybee.

Première diffusion : 6 mai 2011

S2011 E35 • Paul Nicklen: Tales of ice-bound wonderlands

Diving under the Antarctic ice to get close to the much-feared leopard seal, photographer Paul Nicklen found an extraordinary new friend. Share his hilarious, passionate stories of the polar wonderlands, illustrated by glorious images of the animals who live on and under the ice.

Première diffusion : 9 mai 2011

S2011 E36 • Fiorenzo Omenetto: Silk, the ancient material of the future

Fiorenzo Omenetto shares 20+ astonishing new uses for silk, one of nature's most elegant materials -- in transmitting light, improving sustainability, adding strength and making medical leaps and bounds. On stage, he shows a few intriguing items made of the versatile stuff.

Première diffusion : 10 mai 2011

S2011 E37 • Ron Gutman: The hidden power of smiling

Ron Gutman reviews a raft of studies about smiling, and reveals some surprising results. Did you know your smile can be a predictor of how long you'll live -- and that a simple smile has a measurable effect on your overall well-being? Prepare to flex a few facial muscles as you learn more about this evolutionarily contagious behavior.

Première diffusion : 11 mai 2011

S2011 E38 • Amit Sood: Building a museum of museums on the web

Imagine being able to see artwork in the greatest museums around the world without leaving your chair. Driven by his passion for art, Amit Sood tells the story of how he developed Art Project to let people do just that.

Première diffusion : 12 mai 2011

S2011 E39 • Ed Boyden: A light switch for neurons

Ed Boyden shows how, by inserting genes for light-sensitive proteins into brain cells, he can selectively activate or de-activate specific neurons with fiber-optic implants. With this unprecedented level of control, he's managed to cure mice of analogs of PTSD and certain forms of blindness. On the horizon: neural prosthetics. Session host Juan Enriquez leads a brief post-talk Q&A.

Première diffusion : 16 mai 2011

S2011 E40 • Thomas Heatherwick: Building the Seed Cathedral

A future more beautiful? Architect Thomas Heatherwick shows five recent projects featuring ingenious bio-inspired designs. Some are remakes of the ordinary: a bus, a bridge, a power station ... And one is an extraordinary pavilion, the Seed Cathedral, a celebration of growth and light.

Première diffusion : 17 mai 2011

S2011 E41 • Elliot Krane: The mystery of chronic pain

We think of pain as a symptom, but there are cases where the nervous system develops feedback loops and pain becomes a terrifying disease in itself. Starting with the story of a girl whose sprained wrist turned into a nightmare, Elliot Krane talks about the complex mystery of chronic pain, and reviews the facts we're just learning about how it works and how to treat it.

Première diffusion : 18 mai 2011

S2011 E42 • Edith Widder: The weird, wonderful world of bioluminescence

In the deep, dark ocean, many sea creatures make their own light for hunting, mating and self-defense. Bioluminescence expert Edith Widder was one of the first to film this glimmering world. At TED2011, she brings some of her glowing friends onstage, and shows more astonishing footage of glowing undersea life.

Première diffusion : 19 mai 2011

S2011 E43 • Aaron Koblin: Artfully visualizing our humanity

Artist Aaron Koblin takes vast amounts of data -- and at times vast numbers of people -- and weaves them into stunning visualizations. From elegant lines tracing airline flights to landscapes of cell phone data, from a Johnny Cash video assembled from crowd-sourced drawings to the "Wilderness Downtown" video that customizes for the user, his works brilliantly explore how modern technology can make us more human.

Première diffusion : 23 mai 2011

S2011 E44 • Bruce Aylward: How we'll stop polio for good

Polio is almost completely eradicated. But as Bruce Aylward says: Almost isn't good enough with a disease this terrifying. Aylward lays out the plan to continue the scientific miracle that ended polio in most of the world -- and to snuff it out everywhere, forever.

Première diffusion : 24 mai 2011

S2011 E45 • Mustafa Akyol: Faith versus tradition in Islam

At TEDxWarwick, journalist Mustafa Akyol talks about the way that some local cultural practices (such as wearing a headscarf) have become linked, in the popular mind, to the articles of faith of Islam. Has the world's general idea of the Islamic faith focused too much on tradition, and not enough on core beliefs?

Première diffusion : 26 mai 2011

S2011 E46 • Dennis Hong: Making a car for blind drivers

Using robotics, laser rangefinders, GPS and smart feedback tools, Dennis Hong is building a car for drivers who are blind. It's not a "self-driving" car, he's careful to note, but a car in which a non-sighted driver can determine speed, proximity and route -- and drive independently.

Première diffusion : 31 mai 2011

S2011 E47 • Stefan Sagmeister: 7 rules for making more happiness

Using simple, delightful illustrations, designer Stefan Sagmeister shares his latest thinking on happiness -- both the conscious and unconscious kind. His seven rules for life and design happiness can (with some customizations) apply to everyone seeking more joy.

Première diffusion : 1 juin 2011

S2011 E48 • Aaron O'Connell: Making sense of a visible quantum object

Physicists are used to the idea that subatomic particles behave according to the bizarre rules of quantum mechanics, completely different to human-scale objects. In a breakthrough experiment, Aaron O'Connell has blurred that distinction by creating an object that is visible to the unaided eye, but provably in two places at the same time. In this talk he suggests an intriguing way of thinking about the result.

Première diffusion : 2 juin 2011

S2011 E49 • Jessi Arrington: Wearing nothing new

Designer Jessi Arrington packed nothing for TED but 7 pairs of undies, buying the rest of her clothes in thrift stores around LA. It's a meditation on conscious consumption -- wrapped in a rainbow of color and creativity.

Première diffusion : 4 juin 2011