Beau Lotto: Optical illusions show how we see

TEDGlobal 2009

Beau Lotto: Optical illusions show how we see


Beau Lotto's color games puzzle your vision, but they also spotlight what you can't normally see: how your brain works. This fun, first-hand look at your own versatile sense of sight reveals how evolution tints your perception of what's really out there.

Chimamanda Ngozi Adichie: The danger of a single story

TEDGlobal 2009

Chimamanda Ngozi Adichie: The danger of a single story


Our lives, our cultures, are composed of many overlapping stories. Novelist Chimamanda Adichie tells the story of how she found her authentic cultural voice -- and warns that if we hear only a single story about another person or country, we risk a critical misunderstanding.

David Logan: Tribal leadership

TEDxUSC

David Logan: Tribal leadership


David Logan talks about the five kinds of tribes that humans naturally form -- in schools, workplaces, even the driver's license bureau. By understanding our shared tribal tendencies, we can help lead each other to become better individuals.

Carolyn Steel: How food shapes our cities

TEDGlobal 2009

Carolyn Steel: How food shapes our cities


Every day, in a city the size of London, 30 million meals are served. But where does all the food come from? Architect Carolyn Steel discusses the daily miracle of feeding a city, and shows how ancient food routes shaped the modern world.

Stefan Sagmeister: The power of time off

TEDGlobal 2009

Stefan Sagmeister: The power of time off


Every seven years, designer Stefan Sagmeister closes his New York studio for a yearlong sabbatical to rejuvenate and refresh their creative outlook. He explains the often overlooked value of time off and shows the innovative projects inspired by his time in Bali.

Garik Israelian: How spectroscopy could reveal alien life

TEDGlobal 2009

Garik Israelian: How spectroscopy could reveal alien life


Garik Israelian is a spectroscopist, studying the spectrum emitted by a star to figure out what it's made of and how it might behave. It's a rare and accessible look at this discipline, which may be coming close to finding a planet friendly to life.

Karen Armstrong: Let's revive the Golden Rule

TEDGlobal 2009

Karen Armstrong: Let's revive the Golden Rule


Weeks from the Charter for Compassion launch, Karen Armstrong looks at religion's role in the 21st century: Will its dogmas divide us? Or will it unite us for common good? She reviews the catalysts that can drive the world's faiths to rediscover the Golden Rule.

Tim Brown: Designers -- think big!

TEDGlobal 2009

Tim Brown: Designers -- think big!


Tim Brown says the design profession has a bigger role to play than just creating nifty, fashionable little objects. He calls for a shift to local, collaborative, participatory "design thinking" -- starting with the example of 19th-century design thinker Isambard Kingdom Brunel.

Parag Khanna: Mapping the future of countries

TEDGlobal 2009

Parag Khanna: Mapping the future of countries


Many people think the lines on the map no longer matter, but Parag Khanna says they do. Using maps of the past and present, he explains the root causes of border conflicts worldwide and proposes simple yet cunning solutions for each.

Jacqueline Novogratz: A third way to think about aid

TED@State

Jacqueline Novogratz: A third way to think about aid


The debate over foreign aid often pits those who mistrust "charity" against those who mistrust reliance on the markets. Jacqueline Novogratz proposes a middle way she calls patient capital, with promising examples of entrepreneurial innovation driving social change.

Taryn Simon: Photographs of secret sites

TEDGlobal 2009

Taryn Simon: Photographs of secret sites


Taryn Simon exhibits her startling take on photography -- to reveal worlds and people we would never see otherwise. She shares two projects: one documents otherworldly locations typically kept secret from the public, the other involves haunting portraits of men convicted for crimes they did not commit.

William Kamkwamba: How I harnessed the wind

TEDGlobal 2009

William Kamkwamba: How I harnessed the wind


At age 14, in poverty and famine, a Malawian boy built a windmill to power his family's home. Now at 22, William Kamkwamba, who speaks at TED, here, for the second time, shares in his own words the moving tale of invention that changed his life.

Evgeny Morozov: How the Net aids dictatorships

TEDGlobal 2009

Evgeny Morozov: How the Net aids dictatorships


TED Fellow and journalist Evgeny Morozov punctures what he calls "iPod liberalism" -- the assumption that tech innovation always promotes freedom, democracy -- with chilling examples of ways the Internet helps oppressive regimes stifle dissent.

Jonathan Zittrain: The Web as random acts of kindness

TEDGlobal 2009

Jonathan Zittrain: The Web as random acts of kindness


Feeling like the world is becoming less friendly? Social theorist Jonathan Zittrain begs to difffer. The Internet, he suggests, is made up of millions of disinterested acts of kindness, curiosity and trust.

Imogen Heap: "Wait It Out"

TEDGlobal 2009

Imogen Heap: "Wait It Out"


Imogen Heap plays a powerful stripped-down version of "Wait It Out," from her new record, Ellipse.

Oliver Sacks: What hallucination reveals about our minds

TED2009

Oliver Sacks: What hallucination reveals about our minds


Neurologist and author Oliver Sacks brings our attention to Charles Bonnet syndrome -- when visually impaired people experience lucid hallucinations. He describes the experiences of his patients in heartwarming detail and walks us through the biology of this under-reported phenomenon.

John Lloyd: An inventory of the invisible

TEDGlobal 2009

John Lloyd: An inventory of the invisible


Nature's mysteries meet tack-sharp wit in this hilarious, 10-minute mix of quips and fun lessons, as comedian, writer and TV man John Lloyd plucks at the substance of several things not seen.

Bjarke Ingels: 3 warp-speed architecture tales

TEDGlobal 2009

Bjarke Ingels: 3 warp-speed architecture tales


Danish architect Bjarke Ingels rockets through photo/video-mingled stories of his eco-flashy designs. His buildings not only look like nature -- they act like nature: blocking the wind, collecting solar energy -- and creating stunning views.

Misha Glenny: How global crime networks work

TEDGlobal 2009

Misha Glenny: How global crime networks work


Journalist Misha Glenny spent several years in a courageous investigation of organized crime networks worldwide, which have grown to an estimated 15% of the global economy. From the Russian mafia, to giant drug cartels, his sources include not just intelligence and law enforcement officials but criminal insiders.

Vishal Vaid: Hypnotic South Asian improv music

TED2006

Vishal Vaid: Hypnotic South Asian improv music


Vishal Vaid and his band explore a traditional South Asian musical form in this mesmerizing improv performance. Sit back and let his music transport you.

Rebecca Saxe: How we read each other's minds

TEDGlobal 2009

Rebecca Saxe: How we read each other's minds


Sensing the motives and feelings of others is a natural talent for humans. But how do we do it? Here, Rebecca Saxe shares fascinating lab work that uncovers how the brain thinks about other peoples' thoughts -- and judges their actions.

Lewis Pugh: How I swam the North Pole

TEDGlobal 2009

Lewis Pugh: How I swam the North Pole


Lewis Pugh talks about his record-breaking swim across the North Pole. He braved the icy waters (in a Speedo) to highlight the melting icecap. Watch for astonishing footage -- and some blunt commentary on the realities of supercold-water swims.

James Balog: Time-lapse proof of extreme ice loss

TEDGlobal 2009

James Balog: Time-lapse proof of extreme ice loss


Photographer James Balog shares new image sequences from the Extreme Ice Survey, a network of time-lapse cameras recording glaciers receding at an alarming rate, some of the most vivid evidence yet of climate change.

Steve Truglia: A leap from the edge of space

TEDGlobal 2009

Steve Truglia: A leap from the edge of space


At his day job, Steve Truglia flips cars, walks through fire and falls out of buildings -- pushing technology to make stunts bigger, safer, more awesome. He talks us through his next stunt: the highest jump ever attempted, from the very edge of space.

Evan Grant: Making sound visible through cymatics

TEDGlobal 2009

Evan Grant: Making sound visible through cymatics


Evan Grant demonstrates the science and art of cymatics, a process for making soundwaves visible. Useful for analyzing complex sounds (like dolphin calls), it also makes complex and beautiful designs.

Geoff Mulgan: Post-crash, investing in a better world

TEDGlobal 2009

Geoff Mulgan: Post-crash, investing in a better world


As we reboot the world's economy, Geoff Mulgan poses a question: Instead of sending bailout money to doomed old industries, why not use stimulus funds to bootstrap some new, socially responsible companies -- and make the world a little bit better?

Joshua Silver: Adjustable liquid-filled eyeglasses

TEDGlobal 2009

Joshua Silver: Adjustable liquid-filled eyeglasses


Josh Silver delivers his brilliantly simple solution for correcting vision at the lowest cost possible -- adjustable, liquid-filled lenses. At TEDGlobal 2009, he demos his affordable eyeglasses and reveals his global plan to distribute them to a billion people in need by 2020.

Cary Fowler: One seed at a time, protecting the future of food

TEDGlobal 2009

Cary Fowler: One seed at a time, protecting the future of food


The varieties of wheat, corn and rice we grow today may not thrive in a future threatened by climate change. Cary Fowler takes us inside a vast global seed bank, buried within a frozen mountain in Norway, that stores a diverse group of food-crop for whatever tomorrow may bring.

Natasha Tsakos: A multimedia theatrical adventure

TED2009

Natasha Tsakos: A multimedia theatrical adventure


Natasha Tsakos presents part of her one-woman, multimedia show, "Upwake." As the character Zero, she blends dream and reality with an inventive virtual world projected around her in 3D animation and electric sound.

Hans Rosling: Let my dataset change your mindset

TED@State

Hans Rosling: Let my dataset change your mindset


Talking at the US State Department this summer, Hans Rosling uses his fascinating data-bubble software to burst myths about the developing world. Look for new analysis on China and the post-bailout world, mixed with classic data shows.