Downloadable, printable clothing may be coming to a closet near you. What started as designer Danit Peleg's fashion school project turned into a collection of 3D-printed designs that have the strength and flexibility for everyday wear. "Fashion is a very physical thing," she says. "I wonder what our world will look like when our clothes will be ...

A year in reflection of what we learned about our personalities, health, hopes and world as we know it.

Humankind has been looking for the giant squid (Architeuthis) since we first started taking pictures underwater. But the elusive deep-sea predator could never be caught on film. Oceanographer and inventor Edith Widder shares the key insight -- and the teamwork -- that helped to capture the squid on film for the first time.

Why do we dance? African-American social dances started as a way for enslaved Africans to keep cultural traditions alive and retain a sense of inner freedom. They remain an affirmation of identity and independence. In this electric demonstration, packed with live performances, choreographer, educator and TED Fellow Camille A. Brown explores what...

Scientist Bijan Zakeri started studying Streptococcus pyogenes -- the pathogen responsible for diseases from strep throat to scarlet fever -- in the hopes of creating a new generation of antibodies to treat cancer. What he developed instead was completely unexpected: a molecular superglue made from its stone-strong chemical bonds that may change...

We teach girls that they can have ambition, but not too much ... to be successful, but not too successful, or they'll threaten men, says author Chimamanda Ngozi Adichie. In this classic talk that started a worldwide conversation about feminism, Adichie asks that we begin to dream about and plan for a different, fairer world -- of happier men and...

After a vote that banned same-sex marriage in California, activist David Fleischer and his team at the Los Angeles LGBT Center started knocking on doors to test whether they could change voters' minds with a simple conversation. The results were encouraging. In this talk, Fleischer stresses the importance of deep canvassing and face to face inte...

The prevailing image of where refugees live is of temporary camps in isolated areas -- but in reality, nearly 60 percent of them worldwide end up in urban areas. TED Fellow Robert Hakiza takes us inside the lives of urban refugees -- and shows us how organizations like the one that he started can provide them with the skills they need to ultimat...

Poverty, ecological devastation and oppressive systems are among some of the biggest issues facing America today. Reverend William Barber and Reverend Liz Theoharis believe that it's time to address these issues with a uniting approach. They've traveled the country, following and guiding the Poor People's Campaign: a wave of nonviolent civil dis...

Need an introduction to TED? Enjoy a mixture of some of our most well-known, hard-hitting and and perspective-shifting talks.

Artist Safwat Saleem grew up with a stutter -- but as an independent animator, he decided to do his own voiceovers to give life to his characters. When YouTube commenters started mocking his Pakistani accent, it crushed him, and his voice began to leave his work. Hear how this TED Fellow reclaimed his voice and confidence in this charming, thoug...

New York City residents produce 11,000 tons of garbage every day. Every day! This astonishing statistic is just one of the reasons Robin Nagle started a research project with the city's Department of Sanitation. She walked the routes, operated mechanical brooms, even drove a garbage truck herself--all so she could answer a simple-sounding but co...

An architect of the "Boston miracle," Rev. Jeffrey Brown started out as a bewildered young pastor watching his Boston neighborhood fall apart around him, as drugs and gang violence took hold of the kids on the streets. The first step to recovery: Listen to those kids, don't just preach to them, and help them reduce violence in their own neighbor...

In the center of Caracas, Venezuela, stands the 45-story "Tower of David," an unfinished, abandoned skyscraper. But about eight years ago, people started moving in. Photographer Iwan Baan shows how people build homes in unlikely places, touring us through the family apartments of Torre David, a city on the water in Nigeria, and an underground vi...

Every artist has a name, and every artist has a story. Laolu Senbanjo's story started in Nigeria, where he was surrounded by the culture and mythology of the Yoruba, and brought him to law school, to New York and eventually to work on Beyoncé's "Lemonade." He shares what he calls "The Sacred Art of the Ori," art that uses skin as canvas and conn...

In 1987, thousands of people gathered in Saudi Arabia for the annual Hajj pilgrimage. But what started out as a celebration led to a worldwide health crisis: more than 2,000 cases of meningitis broke out, spreading across Saudi Arabia and the rest of the world. How did it spread so quickly and what makes meningitis so dangerous? Melvin Sanicas e...

Jonathan Williams likes to tell stories and throw parties, so he started a church that allowed him to do both.

When Richard J. Berry, the mayor of Albuquerque, saw a man on a street corner holding a cardboard sign that read "Want a job," he decided to take him (and others in his situation) up on it. He and his staff started a citywide initiative to help the homeless by giving them day jobs and a place to sleep -- and the results were incredible. Find out...

Spartacus was a slave -- one of millions taken from territories conquered by Rome to work the mines, till the fields or fight for a crowd's entertainment. Imprisoned for deserting the Roman Army, he and other slaves fought their way free and started a rebellion. How did a slave become synonymous with freedom and courage? Fiona Radford delves int...

Maya Penn makes eco-friendly clothes and accessories, which she sells on a site she built -- and gives away a percent of the profits.

When Gastón Acurio started his now world-famous restaurant Astrid & Gastón in the 1990s, no one suspected that he would elevate the Peruvian home-cooking he grew up with to haute cuisine. Nearly thirty years and a storied career later, the chef wants the rest of us to embrace our culinary roots and transform the world with the meals we prepa...

As a mother with a son affected with Fragile X syndrome -- a genetic disorder -- Emilie Weight believes that a diagnosis of disability can create opportunity, not despair. Her son's differences compelled her to question her inner self and her role in the world. With this new mindset she discovered his true superhero qualities when she stopped tr...

McKenna Pope's younger brother loved to cook, but he worried about using an Easy-Bake Oven -- because it was a toy for girls. So at age 13, Pope started an online petition for the American toy company Hasbro to change the pink-and-purple color scheme on the classic toy and incorporate boys into its TV marketing. In a heartening talk, Pope makes ...

In the city of Alexandria in 415 CE, the bishop and the governor were in a fight. It started with a disagreement over the behavior of a militia of monks, and ended with an accusation of witchcraft leveled against one of the most powerful figures in the city: Hypatia, philosopher and advisor to the city's leaders. Who was Hypatia and why was she ...

What really causes addiction -- to everything from cocaine to smart-phones? And how can we overcome it? Johann Hari has seen our current methods fail firsthand, as he has watched loved ones struggle to manage their addictions. He started to wonder why we treat addicts the way we do -- and if there might be a better way. As he shares in this deep...

Sitawa Wafula started Kenya's first free mental health and epilepsy support line.

Hannah Brencher believes in the power of pen and paper, and has started a global initiative that encourages strangers to exchange love letters.

When Peter Buttigieg was elected mayor of South Bend, Indiana, his constituents wanted to know: What was his plan for their city? Was it the next biotech capital, or maybe an arts and culture destination? To shape the city's future, he started by looking to its past. Pulling from sources across the historical spectrum from South Bend's pioneerin...

The talented herbalist Xu Xian had just started his own medicine shop where he created remedies with the help of his wife, Bai Su Zhen. One day a monk named Fa Hai approached him, warning him that there was a demon in his house. The demon, he said, was Bai Su Zhen. Xu Xian laughed. How could his kind-hearted wife be a demon? Shunan Teng traces t...

In 2004, a nutrition company offered a life-changing opportunity to earn a full-time income for part-time work. There were only two steps to get started: purchase a $500 kit and recruit two more members. By 2013, the company was making $200 million. There was just one problem -- the vast majority of members earned less than they paid in. Stacie ...