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Latest TED Talks


How hip-hop helps us understand science | Danielle N. Lee [Video]How hip-hop helps us understand science | Danielle N. Lee

In the early 1990s, a scandal rocked evolutionary biology: scientists discovered that songbirds -- once thought to be strictly monogamous -- engaged in what's politely called "extra-pair copulation." In this unforgettable biology lesson on animal..

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Inside the black hole image that made history | Sheperd Doeleman [Video]Inside the black hole image that made history | Sheperd Doeleman

At the center of a galaxy more than 55 million light-years away, there's a supermassive black hole with the mass of several billion suns. And now, for the first time ever, we can see it. Astrophysicist Sheperd Doeleman, head of the Event Horizon..

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How Twitter needs to change | Jack Dorsey [Video]How Twitter needs to change | Jack Dorsey

Can Twitter be saved? In a wide-ranging conversation with TED's Chris Anderson and Whitney Pennington Rodgers, Twitter CEO Jack Dorsey discusses the future of the platform -- acknowledging problems with harassment and moderation and proposing some..

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Facebook's role in Brexit -- and the threat to democracy | Carole Cadwalladr [Video]Facebook's role in Brexit -- and the threat to democracy | Carole Cadwalladr

In an unmissable talk, journalist Carole Cadwalladr digs into one of the most perplexing events in recent times: the UK's super-close 2016 vote to leave the European Union. Tracking the result to a barrage of misleading Facebook ads targeted at..

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A personal air-quality tracker that lets you know what you're breathing | Romain Lacombe [Video]A personal air-quality tracker that lets you know what you're breathing | Romain Lacombe

How often do you think about the air you're breathing? Probably not enough, says entrepreneur and TED Fellow Romain Lacombe. He introduces Flow: a personal air-quality tracker that fits in your hand and monitors pollution levels in real time. See how..

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An AI smartwatch that detects seizures | Rosalind Picard [Video]An AI smartwatch that detects seizures | Rosalind Picard

Every year worldwide, more than 50,000 otherwise healthy people with epilepsy suddenly die -- a condition known as SUDEP. These deaths may be largely preventable, says AI researcher Rosalind Picard. Learn how Picard helped develop a cutting-edge..

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The artificial muscles that will power robots of the future | Christoph Keplinger [Video]The artificial muscles that will power robots of the future | Christoph Keplinger

Robot brains are getting smarter and smarter, but their bodies are often still clunky and unwieldy. Mechanical engineer Christoph Keplinger is designing a new generation of soft, agile robot inspired by a masterpiece of evolution: biological muscle...

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How sci-fi inspired us to go to the Moon | Alexander MacDonald [Video]How sci-fi inspired us to go to the Moon | Alexander MacDonald

Long before we had rocket scientists, the idea of spaceflight traveled from mind to mind across generations. With great visuals, author and NASA economist Alexander MacDonald shows how 300 years of sci-fi tales -- from Edgar Allan Poe to Jules Verne..

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3 lessons on starting a movement from a self-defense trailblazer | Rana Abdelhamid [Video]3 lessons on starting a movement from a self-defense trailblazer | Rana Abdelhamid

At 16, Rana Abdelhamid started teaching self-defense to women and girls in her neighborhood. Almost 10 years later, these community classes have grown into Malikah: a global grassroots network creating safety, power and solidarity for all women. How..

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How risk-taking changes a teenager's brain | Kashfia Rahman [Video]How risk-taking changes a teenager's brain | Kashfia Rahman

Why do teenagers sometimes make outrageous, risky choices? Do they suddenly become reckless, or are they just going through a natural phase? To find out, Kashfia Rahman -- winner of the Intel International Science and Engineering Fair (and a Harvard..

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Can we regenerate heart muscle with stem cells? | Chuck Murry [Video]Can we regenerate heart muscle with stem cells? | Chuck Murry

The heart is one of the least regenerative organs in the human body -- a big factor in making heart failure the number one killer worldwide. What if we could help heart muscle regenerate after injury? Physician and scientist Chuck Murry shares his..

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How does income affect childhood brain development? | Kimberly Noble [Video]How does income affect childhood brain development? | Kimberly Noble

Neuroscientist and pediatrician Kimberly Noble is leading the Baby's First Years study: the first-ever randomized study into how income changes children's cognitive, emotional and brain development. She wants to find out: Can we can help kids in..

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We don't We don't "move on" from grief. We move forward with it | Nora McInerny

In a talk that's by turns heartbreaking and hilarious, writer and podcaster Nora McInerny shares her hard-earned wisdom about life and death. Her candid approach to something that will, let's face it, affect us all, is as liberating as it is..

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How to lead a conversation between people who disagree | Eve Pearlman [Video]How to lead a conversation between people who disagree | Eve Pearlman

In a world deeply divided, how do we have hard conversations with nuance, curiosity, respect? Veteran reporter Eve Pearlman introduces "dialogue journalism": a project where journalists go to the heart of social and political divides to support..

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Public art that turns cities into playgrounds of the imagination | Helen Marriage [Video]Public art that turns cities into playgrounds of the imagination | Helen Marriage

Visual artist Helen Marriage stages astonishing, large-scale public art events that expand the boundaries of what's possible. In this visual tour of her work, she tells the story of three cities she transformed into playgrounds of the imagination --..

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"East Virginia" / "John Brown's Dream" | Nora Brown

In a mesmerizing set, musician Nora Brown breathes new life into two old-time banjo tunes: "East Virginia" and "John Brown's Dream." An evocative performance paired with a quick history of the banjo's evolution.

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The beautiful future of solar power | Marjan van Aubel [Video]The beautiful future of solar power | Marjan van Aubel

The sun delivers more energy to earth in one hour than all of humanity uses in an entire year. How can we make this power more accessible to everyone, everywhere? Solar designer Marjan van Aubel shows how she's turning everyday objects like tabletops..

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What's killing bees -- and how to save them | Noah Wilson-Rich [Video]What's killing bees -- and how to save them | Noah Wilson-Rich

Bees are dying off in record numbers, but ecologist Noah Wilson-Rich is interested in something else: Where are bees healthy and thriving? To find out, he recruited citizen scientists across the US to set up beehives in their backyards, gardens and..

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To detect diseases earlier, let's speak bacteria's secret language | Fatima AlZahra'a Alatraktchi [Video]To detect diseases earlier, let's speak bacteria's secret language | Fatima AlZahra'a Alatraktchi

Bacteria "talk" to each other, sending chemical information to coordinate attacks. What if we could listen to what they were saying? Nanophysicist Fatima AlZahra'a Alatraktchi invented a tool to spy on bacterial chatter and translate their secret..

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The secret to scientific discoveries? Making mistakes | Phil Plait [Video]The secret to scientific discoveries? Making mistakes | Phil Plait

Phil Plait was on the Hubble Space Telescope team that discovered the first exoplanet ever detected -- until they realized they'd made a mistake. What happened next? Follow along as Plait shows how science progresses -- through a robust amount of..

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A short history of trans people's long fight for equality | Samy Nour Younes [Video]A short history of trans people's long fight for equality | Samy Nour Younes

Transgender activist and TED Resident Samy Nour Younes shares the remarkable, centuries-old history of the trans community, filled with courageous stories, inspiring triumphs -- and a fight for civil rights that's been raging for a long time...

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How to keep human bias out of AI | Kriti Sharma [Video]How to keep human bias out of AI | Kriti Sharma

AI algorithms make important decisions about you all the time -- like how much you should pay for car insurance or whether or not you get that job interview. But what happens when these machines are built with human bias coded into their systems?..

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What it's like to have Tourette's -- and how music gives me back control | Esha Alwani [Video]What it's like to have Tourette's -- and how music gives me back control | Esha Alwani

Esha Alwani began writing songs when she was six years old, shortly after being diagnosed with Tourette syndrome. And she noticed something amazing: whenever she played music, her involuntary tics suddenly went away. Listen along as Alwani explores..

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Where did the Moon come from? A new theory | Sarah T. Stewart [Video]Where did the Moon come from? A new theory | Sarah T. Stewart

The Earth and the Moon are like identical twins, made up of the exact same materials -- which is really strange, since no other celestial bodies we know of share this kind of chemical relationship. What's responsible for this special connection?..

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Creative ways to get kids to thrive in school | Olympia Della Flora [Video]Creative ways to get kids to thrive in school | Olympia Della Flora

To get young kids to thrive in school, we need to do more than teach them how to read and write -- we need to teach them how to manage their emotions, says educator Olympia Della Flora. In this practical talk, she shares creative tactics she used to..

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Our dangerous quest to perfect ourselves | Thomas Curran [Video]Our dangerous quest to perfect ourselves | Thomas Curran

Social psychologist Thomas Curran explores how the pressure to be perfect -- in our social media feeds, in school, at work -- is driving a rise in mental illness, especially among young people. Learn more about the causes of this phenomenon and how we..

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An unexpected tool for understanding inequality: abstract math | Eugenia Cheng [Video]An unexpected tool for understanding inequality: abstract math | Eugenia Cheng

How do we make sense of a world that doesn't? By looking in unexpected places, says mathematician Eugenia Cheng. She explains how applying concepts from abstract mathematics to daily life can lead us to a deeper understanding of things like the root..

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What refugees need to resettle | Muhammed Idris [Video]What refugees need to resettle | Muhammed Idris

Every minute, 20 people are newly displaced by climate change, economic crisis and political instability, according to the UNHCR. How can we help them overcome the barriers to starting new lives? TED Resident Muhammed Idris is leading a team of..

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"My Man" / "Bohanna" / "We Dance" | Crush Club

Indie pop duo Crush Club and singer Nicki B bring their blend of funk, house and Latin styles to the TED stage, performing three songs: "My Man," "Bohanna" and "We Dance."

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Empower a girl, transform a community | Kakenya Ntaiya [Video]Empower a girl, transform a community | Kakenya Ntaiya

Kakenya Ntaiya turned her dream of getting an education into a movement to empower vulnerable girls and bring an end to harmful traditional practices in Kenya. Meet two students at the Kakenya Center for Excellence, a school where girls can live and..

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How we can store digital data in DNA | Dina Zielinski [Video]How we can store digital data in DNA | Dina Zielinski

From floppy disks to thumb drives, every method of storing data eventually becomes obsolete. What if we could find a way to store all the world's data forever? Bioinformatician Dina Zielinski shares the science behind a solution that's been around for..

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How I'm making bricks out of ashes and rubble in Gaza | Majd Mashharawi [Video]How I'm making bricks out of ashes and rubble in Gaza | Majd Mashharawi

Majd Mashharawi was walking through her war-torn neighborhood in Gaza when an idea flashed in her mind: What if she could take the rubble and transform it into building materials? See how she designed a brick made out of ashes that's helping people..

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Is your country at risk of becoming a dictatorship? Here's how to know | Farida Nabourema [Video]Is your country at risk of becoming a dictatorship? Here's how to know | Farida Nabourema

Farida Nabourema has dedicated her life to fighting the military regime in Togo, Africa's oldest autocracy. She's learned two truths along the way: no country is destined to be oppressed -- and no country is immune to dictatorship. But how can you..

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How to teach kids to talk about taboo topics | Liz Kleinrock [Video]How to teach kids to talk about taboo topics | Liz Kleinrock

When one of Liz Kleinrock's fourth-grade students said the unthinkable at the start of a class on race, she knew it was far too important a teachable moment to miss. But where to start? Learn how Kleinrock teaches kids to discuss taboo topics without..

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An architect's subversive reimagining of the US-Mexico border wall | Ronald Rael [Video]An architect's subversive reimagining of the US-Mexico border wall | Ronald Rael

What is a border? It's a line on a map, a place where cultures mix and merge in beautiful, sometimes violent and occasionally ridiculous ways. And a border wall? An overly simplistic response to that complexity, says architect Ronald Rael. In a..

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The The "dementia village" that's redefining elder care | Yvonne van Amerongen

How would you prefer to spend the last years of your life: in a sterile, hospital-like institution or in a village with a supermarket, pub, theater and park within easy walking distance? The answer seems obvious now, but when Yvonne van Amerongen..

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How a new species of ancestors is changing our theory of human evolution | Juliet Brophy [Video]How a new species of ancestors is changing our theory of human evolution | Juliet Brophy

In 2013, a treasure trove of unusual fossils were uncovered in a cave in South Africa, and researchers soon realized: these were the remains of a new species of ancient humans. Paleoanthropologist Juliet Brophy takes us inside the discovery of Homo..

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How to overcome apathy and find your power | Dolores Huerta [Video]How to overcome apathy and find your power | Dolores Huerta

"Sí, se puede!" -- "Yes, we can!" It's the rallying cry Dolores Huerta came up with as a young activist in the 1970s, and she's lived by it in her tireless pursuit of civil rights ever since. With her signature wit and humor, Huerta reflects on her..

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What if all US health care costs were transparent? | Jeanne Pinder [Video]What if all US health care costs were transparent? | Jeanne Pinder

In the US, the very same blood test can cost $19 at one clinic and $522 at another clinic just blocks away -- and nobody knows the difference until they get a bill weeks later. Journalist Jeanne Pinder says it doesn't have to be this way. She's built..

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3 ways to practice civility | Steven Petrow [Video]3 ways to practice civility | Steven Petrow

What does it mean to be civil? Journalist Steven Petrow looks for answers in the original meaning of the word, showing why civility shouldn't be dismissed as conversation-stifling political correctness or censorship. Learn three ways we can each work..

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The age of genetic wonder | Juan Enriquez [Video]The age of genetic wonder | Juan Enriquez

Gene-editing tools like CRISPR enable us to program life at its most fundamental level. But this raises some pressing questions: If we can generate new species from scratch, what should we build? Should we redesign humanity as we know it? Juan..

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How education helped me rewrite my life | Ashweetha Shetty [Video]How education helped me rewrite my life | Ashweetha Shetty

There's no greater freedom than finding your purpose, says education advocate Ashweetha Shetty. Born to a poor family in rural India, Shetty didn't let the social norms of her community stifle her dreams and silence her voice. In this personal talk,..

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What is the meaning of work? | Roy Bahat and Bryn Freedman [Video]What is the meaning of work? | Roy Bahat and Bryn Freedman

Roy Bahat was worried. His company invests in new technology like AI to make businesses more efficient -- but, he wondered, what was AI doing to the people whose jobs might change, go away or become less fulfilling? The question sent him on a two-year..

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Why noise is bad for your health -- and what you can do about it | Mathias Basner [Video]Why noise is bad for your health -- and what you can do about it | Mathias Basner

Silence is a rare commodity these days. There's traffic, construction, air-conditioning, your neighbor's lawnmower ... and all this unwanted sound can have a surprising impact on your health, says noise researcher Mathias Basner. Discover the science..

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8 lessons on building a company people enjoy working for | Patty McCord [Video]8 lessons on building a company people enjoy working for | Patty McCord

Most companies operate on a set of policies: mandated vacation days, travel guidelines, standard work hours, annual goals. But what happens when a company looks less to control and more to trust? Patty McCord, the iconic former chief talent officer at..

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The disarming case to act right now on climate change | Greta Thunberg [Video]The disarming case to act right now on climate change | Greta Thunberg

In this passionate call to action, 16-year-old climate activist Greta Thunberg explains why, in August 2018, she walked out of school and organized a strike to raise awareness of global warming, protesting outside the Swedish parliament and grabbing..

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A love story about the power of art as organizing | Aja Monet and phillip agnew [Video]A love story about the power of art as organizing | Aja Monet and phillip agnew

In a lyrical talk full of radical imagination, poet Aja Monet and community organizer phillip agnew share the story of how they fell in love and what they've learned about the powerful connection between great social movements and meaningful art...

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How doctors can help low-income patients (and still make a profit) | P.J. Parmar [Video]How doctors can help low-income patients (and still make a profit) | P.J. Parmar

Modern American health care is defined by its high costs, high overhead and inaccessibility -- especially for low-income patients. What if we could redesign the system to serve the poor and still have doctors make money? In an eye-opening (and..

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How we can help the How we can help the "forgotten middle" reach their full potential | Danielle R. Moss

You know the "forgotten middle": they're the students, coworkers and regular people who are often overlooked because they're seen as neither exceptional nor problematic. How can we empower them to reach their full potential? Sharing her work helping..

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This is the side hustle revolution | Nicaila Matthews Okome [Video]This is the side hustle revolution | Nicaila Matthews Okome

Past generations found a company to work for and then stayed there for decades. But today, we rarely stay in the same job (let alone on the same career path) and we don't rely on a single income stream. The tools and resources are out there for us to..

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