Daphne Koller: What we're learning from online education

TEDGlobal 2012

Daphne Koller: What we're learning from online education

2,406,654 views


Daphne Koller is enticing top universities to put their most intriguing courses online for free -- not just as a service, but as a way to research how people learn. With Coursera (cofounded by Andrew Ng), each keystroke, quiz, peer-to-peer discussion and self-graded assignment builds an unprecedented pool of data on how knowledge is processed.

Stephen Ritz: A teacher growing green in the South Bronx

TEDxManhattan

Stephen Ritz: A teacher growing green in the South Bronx

1,197,885 views


A whirlwind of energy and ideas, Stephen Ritz is a teacher in New York's tough South Bronx, where he and his kids grow lush gardens for food, greenery -- and jobs. Just try to keep up with this New York treasure as he spins through the many, many ways there are to grow hope in a neighborhood many have written off, or in your own.

Giles Duley: When a reporter becomes the story

TEDxObserver

Giles Duley: When a reporter becomes the story

194,088 views


Giles Duley gave up a life of glamour and celebrity as a fashion photographer to travel the world and document the stories of the forgotten and marginalized. While on assignment in Afghanistan he stepped on a landmine, a horrific event that left him a triple amputee. In this moving talk Duley tells us stories of lives lost and found -- including his.

Wayne McGregor: A choreographer's creative process in real time

TEDGlobal 2012

Wayne McGregor: A choreographer's creative process in real time

943,827 views


We all use our body on a daily basis, and yet few of us think about our physicality the way Wayne McGregor does. He demonstrates how a choreographer communicates ideas to an audience, working with two dancers to build phrases of dance, live and unscripted, on the TEDGlobal stage.

Mark Applebaum: The mad scientist of music

TEDxStanford

Mark Applebaum: The mad scientist of music

4,129,136 views


Mark Applebaum writes music that breaks the rules in fantastic ways, composing a concerto for a florist and crafting a musical instrument from junk and found objects. This quirky talk might just inspire you to shake up the "rules" of your own creative work.

Rob Legato: The art of creating awe

TEDGlobal 2012

Rob Legato: The art of creating awe

1,995,895 views


Rob Legato creates movie effects so good they (sometimes) trump the real thing. In this warm and funny talk, he shares his vision for enhancing reality on-screen in movies like Apollo 13, Titanic and Hugo.

Michael Anti: Behind the Great Firewall of China

TEDGlobal 2012

Michael Anti: Behind the Great Firewall of China

1,500,952 views


Michael Anti (aka Jing Zhao) has been blogging from China for 12 years. Despite the control the central government has over the Internet -- "All the servers are in Beijing" -- he says that hundreds of millions of microbloggers are in fact creating the first national public sphere in the country's history, and shifting the balance of power in unexpected ways.

Noah Wilson-Rich: Every city needs healthy honey bees

TEDxBoston 2012

Noah Wilson-Rich: Every city needs healthy honey bees

730,954 views


Bees have been rapidly and mysteriously disappearing from rural areas, with grave implications for agriculture. But bees seem to flourish in urban environments -- and cities need their help, too. Noah Wilson-Rich suggests that urban beekeeping might play a role in revitalizing both a city and a species.

Tracy Chevalier: Finding the story inside the painting

TEDSalon London Spring 2012

Tracy Chevalier: Finding the story inside the painting

1,265,044 views


When Tracy Chevalier looks at paintings, she imagines the stories behind them: How did the painter meet his model? What would explain that look in her eye? Why is that man ... blushing? She shares three stories inspired by portraits, including the one that led to her best-selling novel "Girl With a Pearl Earring."

Ramesh Raskar: Imaging at a trillion frames per second

TEDGlobal 2012

Ramesh Raskar: Imaging at a trillion frames per second

4,248,927 views


Ramesh Raskar presents femto-photography, a new type of imaging so fast it visualizes the world one trillion frames per second, so detailed it shows light itself in motion. This technology may someday be used to build cameras that can look “around” corners or see inside the body without X-rays.

Michael Hansmeyer: Building unimaginable shapes

TEDGlobal 2012

Michael Hansmeyer: Building unimaginable shapes

889,015 views


Inspired by cell division, Michael Hansmeyer writes algorithms that design outrageously fascinating shapes and forms with millions of facets. No person could draft them by hand, but they're buildable -- and they could revolutionize the way we think of architectural form.

Malte Spitz: Your phone company is watching

TEDGlobal 2012

Malte Spitz: Your phone company is watching

1,654,967 views


What kind of data is your cell phone company collecting? Malte Spitz wasn’t too worried when he asked his operator in Germany to share information stored about him. Multiple unanswered requests and a lawsuit later, Spitz received 35,830 lines of code -- a detailed, nearly minute-by-minute account of half a year of his life.

John Graham-Cumming: The greatest machine that never was

TEDxImperialCollege

John Graham-Cumming: The greatest machine that never was

1,205,885 views


Computer science began in the '30s ... the 1830s. John Graham-Cumming tells the story of Charles Babbage's mechanical, steam-powered "analytical engine" and how Ada Lovelace, mathematician and daughter of Lord Byron, saw beyond its simple computational abilities to imagine the future of computers.

Vinay Venkatraman: Technology crafts for the digitally underserved

TEDxSummit

Vinay Venkatraman: Technology crafts for the digitally underserved

600,952 views


Two-thirds of the world may not have access to the latest smartphone, but local electronic shops are adept at fixing older tech using low-cost parts. Vinay Venkatraman explains his work in "technology crafts," through which a mobile phone, a lunchbox and a flashlight can become a digital projector for a village school, or an alarm clock and a mouse can be melded into a medical device for local triage.

Matt Mills: Image recognition that triggers augmented reality

TEDGlobal 2012

Matt Mills: Image recognition that triggers augmented reality

2,645,164 views


Matt Mills and Tamara Roukaerts demonstrate Aurasma, a new augmented reality tool that can seamlessly animate the world as seen through a smartphone. Going beyond previous augmented reality, their "auras" can do everything from making a painting talk to overlaying live news onto a printed newspaper.

Baba Shiv: Sometimes it's good to give up the driver's seat

TEDxStanford

Baba Shiv: Sometimes it's good to give up the driver's seat

865,403 views


Over the years, research has shown a counterintuitive fact about human nature: Sometimes, having too much choice makes us less happy. This may even be true when it comes to medical treatment. Baba Shiv shares a fascinating study that measures why choice opens the door to doubt, and suggests that ceding control -- especially on life-or-death decisions -- may be the best thing for us.

James Stavridis: A Navy Admiral's thoughts on global security

TEDGlobal 2012

James Stavridis: A Navy Admiral's thoughts on global security

732,545 views


Imagine global security driven by collaboration -- among agencies, government, the private sector and the public. That's not just the distant hope of open-source fans, it's the vision of James Stavridis, a US Navy Admiral. Stavridis shares vivid moments from recent military history to explain why security of the future should be built with bridges rather than walls.

Neil Harbisson: I listen to color

TEDGlobal 2012

Neil Harbisson: I listen to color

2,663,568 views


Artist Neil Harbisson was born completely color blind, but these days a device attached to his head turns color into audible frequencies. Instead of seeing a world in grayscale, Harbisson can hear a symphony of color -- and yes, even listen to faces and paintings.

Jamie Drummond: Let's crowdsource the world's goals

TEDGlobal 2012

Jamie Drummond: Let's crowdsource the world's goals

528,987 views


In 2000, the UN laid out 8 goals to make the world better by reducing poverty and disease -- with a deadline of 2015. As that deadline approaches, Jamie Drummond of ONE.org runs down the surprising successes of the 8 Millennium Development Goals, and suggests a crowdsourced reboot for the next 15 years.

Mina Bissell: Experiments that point to a new understanding of cancer

TEDGlobal 2012

Mina Bissell: Experiments that point to a new understanding of cancer

1,026,833 views


For decades, researcher Mina Bissell pursued a revolutionary idea -- that a cancer cell doesn't automatically become a tumor, but rather, depends on surrounding cells (its microenvironment) for cues on how to develop. She shares the two key experiments that proved the prevailing wisdom about cancer growth was wrong.

Gabriel Barcia-Colombo: Capturing memories in video art

TED2012

Gabriel Barcia-Colombo: Capturing memories in video art

773,999 views


Using video mapping and projection, artist Gabriel Barcia-Colombo captures and shares his memories and friendships. At TED Fellow Talks, he shows his charming, thoughtful work -- which appears to preserve the people in his life in jars, suitcases, blenders ...

Todd Humphreys: How to fool a GPS

TEDxAustin

Todd Humphreys: How to fool a GPS

745,865 views


Todd Humphreys forecasts the near-future of geolocation when millimeter-accurate GPS "dots" will enable you to find pin-point locations, index-search your physical possessions ... or to track people without their knowledge. And the response to the sinister side of this technology may have unintended consequences of its own.

Chris Gerdes: The future race car -- 150mph, and no driver

TEDxStanford

Chris Gerdes: The future race car -- 150mph, and no driver

759,976 views


Autonomous cars are coming -- and they're going to drive better than you. Chris Gerdes reveals how he and his team are developing robotic race cars that can drive at 150 mph while avoiding every possible accident. And yet, in studying the brainwaves of professional racing drivers, Gerdes says he has gained a new appreciation for the instincts of professional drivers

Jared Ficklin: New ways to see music (with color! and fire!)

TED2012

Jared Ficklin: New ways to see music (with color! and fire!)

685,685 views


Designer Jared Ficklin creates wild visualizations that let us see music, using color and even fire (a first for the TED stage) to analyze how sound makes us feel. He takes a brief digression to analyze the sound of a skatepark -- and how audio can clue us in to developing creativity.

Jonathan Eisen: Meet your microbes

TEDMED 2012

Jonathan Eisen: Meet your microbes

774,325 views


Our bodies are covered in a sea of microbes -- both the pathogens that make us sick and the "good" microbes, about which we know less, that might be keeping us healthy. At TEDMED, microbiologist Jonathan Eisen shares what we know, including some surprising ways to put those good microbes to work.

Jane McGonigal: The game that can give you 10 extra years of life

TEDGlobal 2012

Jane McGonigal: The game that can give you 10 extra years of life

6,460,434 views


When game designer Jane McGonigal found herself bedridden and suicidal following a severe concussion, she had a fascinating idea for how to get better. She dove into the scientific research and created the healing game, SuperBetter. In this moving talk, McGonigal explains how a game can boost resilience -- and promises to add 7.5 minutes to your life.

Usman Riaz + Preston Reed: A young guitarist meets his hero

TEDGlobal 2012

Usman Riaz + Preston Reed: A young guitarist meets his hero

4,149,337 views


Usman Riaz is a 21-year-old whiz at the percussive guitar, a style he learned to play by watching his heroes on YouTube. The TED Fellow plays onstage at TEDGlobal 2012 -- followed by a jawdropping solo from the master of percussive guitar, Preston Reed. And watch these two guitarists take on a very spur-of-the-moment improv.

Cesar Harada: A novel idea for cleaning up oil spills

TEDxSummit

Cesar Harada: A novel idea for cleaning up oil spills

861,772 views


When TED Senior Fellow Cesar Harada heard about the devastating effects of the BP Oil spill in the Gulf of Mexico in 2010, he quit his dream job and moved to New Orleans to develop a more efficient way to soak up the oil. He designed a highly maneuverable, flexible boat capable of cleaning large tracts quickly. But rather than turn a profit, he has opted to open-source the design.

Alanna Shaikh: How I'm preparing to get Alzheimer's

TEDGlobal 2012

Alanna Shaikh: How I'm preparing to get Alzheimer's

1,427,096 views


When faced with a parent suffering from Alzheimer's, most of us respond with denial ("It won't happen to me") or extreme efforts at prevention. But global health expert and TED Fellow Alanna Shaikh sees it differently. She's taking three concrete steps to prepare for the moment -- should it arrive -- when she herself gets Alzheimer's disease.

Marc Goodman: A vision of crimes in the future

TEDGlobal 2012

Marc Goodman: A vision of crimes in the future

1,272,163 views


The world is becoming increasingly open, and that has implications both bright and dangerous. Marc Goodman paints a portrait of a grave future, in which technology's rapid development could allow crime to take a turn for the worse.