Cheryl Hayashi: The magnificence of spider silk

TED2010

Cheryl Hayashi: The magnificence of spider silk


Cheryl Hayashi studies spider silk, one of nature's most high-performance materials. Each species of spider can make up to 7 very different kinds of silk. How do they do it? Hayashi explains at the DNA level -- then shows us how this super-strong, super-flexible material can inspire.

Luis von Ahn: Massive-scale online collaboration

TEDxCMU

Luis von Ahn: Massive-scale online collaboration


After re-purposing CAPTCHA so each human-typed response helps digitize books, Luis von Ahn wondered how else to use small contributions by many on the Internet for greater good. In this talk, he shares how his ambitious new project, Duolingo, will help millions learn a new language while translating the Web quickly and accurately -- all for free.

Srdja Popovic: How to topple a dictator

TEDxKrakow

Srdja Popovic: How to topple a dictator


2011 was a year of people-powered resistance, starting with Arab Spring and spreading across the world. How did it work? Srdja Popovic (who led the nonviolent movement that took down Milosevic in Serbia in 2000) lays out the plans, skills and tools each movement needs -- from nonviolent tactics to a sense of humor. (Filmed at TEDxKrakow.)

Sarah Kay: How many lives can you live?

TEDxEast

Sarah Kay: How many lives can you live?


Spoken-word poet Sarah Kay was stunned to find she couldn’t be a princess, ballerina and astronaut all in one lifetime. In this talk, she delivers two powerful poems that show us how we can live other lives. (Filmed at TEDxEast.)

Leslie Dodson: Don't misrepresent Africa

TEDxBoulder 2011

Leslie Dodson: Don't misrepresent Africa

No Transcript

Real narratives are complicated: Africa isn’t a country, and it's not a disaster zone, says reporter and researcher Leslie Dodson. In her talk, she calls for journalists, researchers and NGOs to stop representing entire continents as one big tragedy. (Filmed at TEDxBoulder.)

Charles Limb: Building the musical muscle

TEDMED 2011

Charles Limb: Building the musical muscle


Charles Limb performs cochlear implantation, a surgery that treats hearing loss and can restore the ability to hear speech. But as a musician too, Limb thinks about what the implants lack: They don't let you fully experience music yet. (There's a hair-raising example.) At TEDMED, Limb reviews the state of the art and the way forward.

Annie Murphy Paul: What we learn before we're born

TEDGlobal 2011

Annie Murphy Paul: What we learn before we're born


Pop quiz: When does learning begin? Answer: Before we are born. Science writer Annie Murphy Paul talks through new research that shows how much we learn in the womb -- from the lilt of our native language to our soon-to-be-favorite foods.

Karen Tse: How to stop torture

TEDGlobal 2011

Karen Tse: How to stop torture


Political prisoners aren't the only ones being tortured -- the vast majority of judicial torture happens in ordinary cases, even in 'functioning' legal systems. Social activist Karen Tse shows how we can, and should, stand up and end the use of routine torture.

Kathryn Schulz: Don't regret regret

TEDSalon NY2011

Kathryn Schulz: Don't regret regret


We're taught to try to live life without regret. But why? Using her own tattoo as an example, Kathryn Schulz makes a powerful and moving case for embracing our regrets.

Damon Horowitz: Philosophy in prison

TED2011

Damon Horowitz: Philosophy in prison


Damon Horowitz teaches philosophy through the Prison University Project, bringing college-level classes to inmates of San Quentin State Prison. In this powerful short talk, he tells the story of an encounter with right and wrong that quickly gets personal.

Amy Purdy: Living beyond limits

TEDxOrangeCoast

Amy Purdy: Living beyond limits


When she was 19, Amy Purdy lost both her legs below the knee. And now ... she's a pro snowboarder. In this powerful talk, she shows us how to draw inspiration from life's obstacles. (Filmed at TEDxOrangeCoast.)

Britta Riley: A garden in my apartment

TEDxManhattan

Britta Riley: A garden in my apartment


Britta Riley wanted to grow her own food (in her tiny apartment). So she and her friends developed a system for growing plants in discarded plastic bottles -- researching, testing and tweaking the system using social media, trying many variations at once and quickly arriving at the optimal system. Call it distributed DIY. And the results? Delicious. (Filmed at TEDxManhattan .)

Louie Schwartzberg: Nature. Beauty. Gratitude.

TEDxSF

Louie Schwartzberg: Nature. Beauty. Gratitude.


Nature’s beauty can be easily missed -- but not through Louie Schwartzberg’s lens. His stunning time-lapse photography, accompanied by powerful words from Benedictine monk Brother David Steindl-Rast, serves as a meditation on being grateful for every day. (Filmed at TEDxSF.)

Joe Sabia: The technology of storytelling

Full Spectrum Auditions

Joe Sabia: The technology of storytelling


iPad storyteller Joe Sabia introduces us to Lothar Meggendorfer, who created a bold technology for storytelling: the pop-up book. Sabia shows how new technology has always helped us tell our own stories, from the walls of caves to his own onstage iPad.

Péter Fankhauser: Meet Rezero, the dancing ballbot

TEDGlobal 2011

Péter Fankhauser: Meet Rezero, the dancing ballbot


Onstage at TEDGlobal, Péter Fankhauser demonstrates Rezero, a robot that balances on a ball. Designed and built by a group of engineering students, Rezero is the first ballbot made to move quickly and gracefully -- and even dance.

Phil Plait: How to defend Earth from asteroids

TEDxBoulder 2011

Phil Plait: How to defend Earth from asteroids


What's six miles wide and can end civilization in an instant? An asteroid -- and there are lots of them out there. With humor and great visuals, Phil Plait enthralls the TEDxBoulder audience with all the ways asteroids can kill, and what we must do to avoid them. (Filmed at TEDxBoulder.)

Natalie Warne: Being young and making an impact

TEDxTeen

Natalie Warne: Being young and making an impact

No Transcript

At 18, Natalie Warne’s work with the Invisible Children movement made her a hero for young activists. She uses her inspiring story to remind us that no one is too young to change the world. (Filmed at TEDxTeen.)

Robin Ince: Science versus wonder?

TEDGlobal 2011

Robin Ince: Science versus wonder?


Does science ruin the magic of life? In this grumpy but charming monologue, Robin Ince makes the argument against. The more we learn about the astonishing behavior of the universe -- the more we stand in awe.

Cynthia Kenyon: Experiments that hint of longer lives

TEDGlobal 2011

Cynthia Kenyon: Experiments that hint of longer lives


What controls aging? Biochemist Cynthia Kenyon has found a simple genetic mutation that can double the lifespan of a simple worm, C. elegans. The lessons from that discovery, and others, are pointing to how we might one day significantly extend youthful human life.

Thomas Suarez: A 12-year-old app developer

TEDxManhattanBeach

Thomas Suarez: A 12-year-old app developer


Most 12-year-olds love playing videogames -- Thomas Suarez taught himself how to create them. After developing iPhone apps like "Bustin Jeiber," a whack-a-mole game, he is now using his skills to help other kids become developers. (Filmed at TEDxManhattanBeach.)

Yves Rossy: Fly with the Jetman

TEDGlobal 2011

Yves Rossy: Fly with the Jetman


Strapped to a jet-powered wing, Yves Rossy is the Jetman -- flying free, his body as the rudder, above the Swiss Alps and the Grand Canyon. After a powerful short film shows how it works, Rossy takes the TEDGlobal stage to share the experience and thrill of flying.

Charlie Todd: The shared experience of absurdity

TEDxBloomington

Charlie Todd: The shared experience of absurdity


Charlie Todd causes bizarre, hilarious, and unexpected public scenes: Seventy synchronized dancers in storefront windows, "ghostbusters" running through the New York Public Library, and the annual no-pants subway ride. In his talk, he shows how his group, Improv Everywhere, uses these scenes to bring people together. (Filmed at TEDxBloomington.)

Roger McNamee: 6 ways to save the internet

TEDxSantaCruz

Roger McNamee: 6 ways to save the internet

No Transcript

The next big shift is now, and it’s not what you think: Facebook is the new Windows; Google must be sacrificed. Tech investor Roger McNamee presents 6 bold ways to prepare for the next internet. (Filmed at TEDxSantaCruz.)

Allan Jones: A map of the brain

TEDGlobal 2011

Allan Jones: A map of the brain


How can we begin to understand the way the brain works? The same way we begin to understand a city: by making a map. In this visually stunning talk, Allan Jones shows how his team is mapping which genes are turned on in each tiny region, and how it all connects up.

Ben Kacyra: Ancient wonders captured in 3D

TEDGlobal 2011

Ben Kacyra: Ancient wonders captured in 3D


Ancient monuments give us clues to astonishing past civilizations -- but they're under threat from pollution, war, neglect. Ben Kacyra, who invented a groundbreaking 3D scanning system, is using his invention to scan and preserve the world's heritage in archival detail. (Watch to the end for a little demo.)

Aparna Rao: High-tech art (with a sense of humor)

TEDGlobal 2011

Aparna Rao: High-tech art (with a sense of humor)


Artist and TED Fellow Aparna Rao re-imagines the familiar in surprising, often humorous ways. With her collaborator Soren Pors, Rao creates high-tech art installations -- a typewriter that sends emails, a camera that tracks you through the room only to make you invisible on screen -- that put a playful spin on ordinary objects and interactions.

Martin Hanczyc: The line between life and not-life

TEDSalon London Spring 2011

Martin Hanczyc: The line between life and not-life


In his lab, Martin Hanczyc makes "protocells," experimental blobs of chemicals that behave like living cells. His work demonstrates how life might have first occurred on Earth ... and perhaps elsewhere too.