Janna Levin: The sound the universe makes

TED2011

Janna Levin: The sound the universe makes

1,159,867 views


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.

David Brooks: The social animal

TED2011

David Brooks: The social animal

1,160,473 views


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.

Rob Harmon: How to keep rivers and streams flowing

TEDxRainier

Rob Harmon: How to keep rivers and streams flowing

609,239 views


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

Deb Roy: The birth of a word

TED2011

Deb Roy: The birth of a word

2,538,668 views


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.

Eli Pariser: Beware online "filter bubbles"

TED2011

Eli Pariser: Beware online "filter bubbles"

4,229,306 views


As web companies strive to tailor their services (including news and search results) to our personal tastes, there's a dangerous unintended consequence: We get trapped in a "filter bubble" and don't get exposed to information that could challenge or broaden our worldview. Eli Pariser argues powerfully that this will ultimately prove to be bad for us and bad for democracy.

Sal Khan: Let's use video to reinvent education

TED2011

Sal Khan: Let's use video to reinvent education

4,776,945 views


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.

Courtney E. Martin: This isn't her mother's feminism

TEDWomen 2010

Courtney E. Martin: This isn't her mother's feminism

990,826 views


Blogger Courtney E. Martin examines the perennially loaded word "feminism" in this personal and heartfelt talk. She talks through the three essential paradoxes of her generation's quest to define the term for themselves.

Anthony Atala: Printing a human kidney

TED2011

Anthony Atala: Printing a human kidney

2,837,109 views


Surgeon Anthony Atala demonstrates an early-stage experiment that could someday solve the organ-donor problem: a 3D printer that uses living cells to output a transplantable kidney. Using similar technology, Dr. Atala's young patient Luke Massella received an engineered bladder 10 years ago; we meet him onstage. NOTE: This talk was given in 2011, and this field of science has developed quickly since then. Read "Criticisms & updates" below for more details.

Bill Gates: How state budgets are breaking US schools

TED2011

Bill Gates: How state budgets are breaking US schools

1,888,617 views


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.

Wael Ghonim: Inside the Egyptian revolution

TED2011

Wael Ghonim: Inside the Egyptian revolution

940,128 views


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."

JR: My wish: Use art to turn the world inside out

TED2011

JR: My wish: Use art to turn the world inside out

2,696,111 views


French street artist JR 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.

Wadah Khanfar: A historic moment in the Arab world

TED2011

Wadah Khanfar: A historic moment in the Arab world

941,626 views


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.

Ahn Trio: A modern take on piano, violin, cello

TEDWomen 2010

Ahn Trio: A modern take on piano, violin, cello

769,179 views


The three Ahn sisters (cellist Maria, pianist Lucia, violinist Angella) breathe new life into the piano trio with their passionate musicmaking. At TEDWomen, they start with the bright and poppy "Skylife," by David Balakrishnan, then play a gorgeous, slinky version of "Oblivion," by Astor Piazzolla.

Danny Hillis: Understanding cancer through proteomics

TEDMED 2010

Danny Hillis: Understanding cancer through proteomics

433,808 views


Danny Hills makes a case for the next frontier of cancer research: proteomics, the study of proteins in the body. As Hillis explains it, genomics shows us a list of the ingredients of the body -- while proteomics shows us what those ingredients produce. Understanding what's going on in your body at the protein level may lead to a new understanding of how cancer happens.

Elizabeth Lindsey: Curating humanity's heritage

TEDWomen 2010

Elizabeth Lindsey: Curating humanity's heritage

450,814 views


It's been said that when an elder dies, it's as if a library is burned. Anthropologist Elizabeth Lindsey, a National Geographic Fellow, collects the deep cultural knowledge passed down as stories and lore.

Iain Hutchison: Saving faces: A facial surgeon's craft

TEDGlobal 2010

Iain Hutchison: Saving faces: A facial surgeon's craft

627,102 views


Maxillofacial surgeon Iain Hutchison works with people whose faces have been severely disfigured. By pushing to improve surgical techniques, he helps to improve their lives; and by commissioning their portraits, he celebrates their humanity. NOTE: This talk contains images of disfigured and badly injured faces that may be disturbing -- and Hutchison provides thoughtful answers as to why a disfigured face can shock us so deeply. Squeamish? Hide your screen from 12:10 - 13:19, but do keep listening. Portraits shown in this talk come from Mark Gilbert.

Noreena Hertz: How to use experts -- and when not to

TEDSalon London 2010

Noreena Hertz: How to use experts -- and when not to

892,067 views


We make important decisions every day -- and we often rely on experts to help us decide. But, says economist Noreena Hertz, relying too much on experts can be limiting and even dangerous. She calls for us to start democratizing expertise -- to listen not only to "surgeons and CEOs, but also to shop staff."

Madeleine Albright: On being a woman and a diplomat

TEDWomen 2010

Madeleine Albright: On being a woman and a diplomat

752,368 views


Former US Secretary of State Madeleine Albright talks bluntly about politics and diplomacy, making the case that women's issues deserve a place at the center of foreign policy. Far from being a "soft" issue, she says, women's issues are often the very hardest ones, dealing directly with life and death. A frank and funny Q&A with Pat Mitchell from the Paley Center.

Lisa Gansky: The future of business is the "mesh"

TED@MotorCity

Lisa Gansky: The future of business is the "mesh"

722,997 views


Lisa Gansky, author of "The Mesh," talks about a future of business that's about sharing all kinds of stuff, either via smart and tech-enabled rental or, more boldly, peer-to-peer. Examples across industries -- from music to cars -- show how close we are to this meshy future.

Jacqueline Novogratz: Inspiring a life of immersion

TEDWomen 2010

Jacqueline Novogratz: Inspiring a life of immersion

892,040 views


We each want to live a life of purpose, but where to start? In this luminous, wide-ranging talk, Jacqueline Novogratz introduces us to people she's met in her work in "patient capital" -- people who have immersed themselves in a cause, a community, a passion for justice. These human stories carry powerful moments of inspiration.

Patricia Kuhl: The linguistic genius of babies

TEDxRainier

Patricia Kuhl: The linguistic genius of babies

2,707,205 views


Patricia Kuhl shares astonishing findings about how babies learn one language over another -- by listening to the humans around them and "taking statistics" on the sounds they need to know. Clever lab experiments (and brain scans) show how 6-month-old babies use sophisticated reasoning to understand their world.

Krista Tippett: Reconnecting with compassion

TEDPrize@UN

Krista Tippett: Reconnecting with compassion

719,992 views


The term "compassion" -- typically reserved for the saintly or the sappy -- has fallen out of touch with reality. At a special TEDPrize@UN, journalist Krista Tippett deconstructs the meaning of compassion through several moving stories, and proposes a new, more attainable definition for the word.

Geert Chatrou: A whistleblower you haven't heard

TEDxRotterdam 2010

Geert Chatrou: A whistleblower you haven't heard

2,063,633 views


World champion whistler Geert Chatrou performs the whimsical "Eleonora" by A. Honhoff, and his own "FĂȘte de la Belle." In a fascinating interlude, he talks about what brought him to the craft.

Michael Pawlyn: Using nature's genius in architecture

TEDSalon London 2010

Michael Pawlyn: Using nature's genius in architecture

1,796,627 views


How can architects build a new world of sustainable beauty? By learning from nature. Michael Pawlyn describes three habits of nature that could transform architecture and society: radical resource efficiency, closed loops, and drawing energy from the sun.

Hawa Abdi + Deqo Mohamed: Mother and daughter doctor-heroes

TEDWomen 2010

Hawa Abdi + Deqo Mohamed: Mother and daughter doctor-heroes

360,789 views


They've been called the "saints of Somalia." Doctor Hawa Abdi and her daughter Deqo Mohamed discuss their medical clinic in Somalia, where -- in the face of civil war and open oppression of women -- they've built a hospital, a school and a community of peace.

Cynthia Breazeal: The rise of personal robots

TEDWomen 2010

Cynthia Breazeal: The rise of personal robots

1,090,270 views


Cynthia Breazeal wonders: Why can we use robots on Mars, but not in our living rooms? The key, she says, is in training robots to interact with people. Now she dreams up and builds robots that teach, learn -- and play. Watch for amazing demo footage of a new interactive game for kids.

Nigel Marsh: How to make work-life balance work

TEDxSydney

Nigel Marsh: How to make work-life balance work

4,004,376 views


Work-life balance, says Nigel Marsh, is too important to be left in the hands of your employer. Marsh lays out an ideal day balanced between family time, personal time and productivity -- and offers some stirring encouragement to make it happen.

Suheir Hammad: Poems of war, peace, women, power

TEDWomen 2010

Suheir Hammad: Poems of war, peace, women, power

644,871 views


Poet Suheir Hammad performs two spine-tingling spoken-word pieces: "What I Will" and "break (clustered)" -- meditations on war and peace, on women and power. Wait for the astonishing line: "Do not fear what has blown up. If you must, fear the unexploded."

Christopher McDougall: Are we born to run?

TEDxPennQuarter

Christopher McDougall: Are we born to run?

2,550,474 views


Christopher McDougall explores the mysteries of the human desire to run. How did running help early humans survive -- and what urges from our ancient ancestors spur us on today? McDougall tells the story of the marathoner with a heart of gold, the unlikely ultra-runner, and the hidden tribe in Mexico that runs to live.

Johanna Blakley: Social media and the end of gender

TEDWomen 2010

Johanna Blakley: Social media and the end of gender

1,317,385 views


Media and advertising companies still use the same old demographics to understand audiences, but they're becoming increasingly harder to track online, says media researcher Johanna Blakley. As social media outgrows traditional media, and women users outnumber men, Blakley explains what changes are in store for the future of media.