Kristin Poinar: What's hidden under the Greenland ice sheet?

TED2017

Kristin Poinar: What's hidden under the Greenland ice sheet?

3,005,659 views

Readability: 3.7


The Greenland ice sheet is massive, mysterious -- and melting. Using advanced technology, scientists are revealing its secrets for the first time, and what they've found is amazing: hidden under the ice sheet is a vast aquifer that holds a Lake Tahoe-sized volume of water from the summer melt. Does this water stay there, or does it find its way out to the ocean and contribute to global sea level rise? Join glaciologist Kristin Poinar for a trip to this frozen, forgotten land to find out.

Paul Tasner: How I became an entrepreneur at 66

TED Residency

Paul Tasner: How I became an entrepreneur at 66

1,908,619 views

Readability: 4.6


It's never too late to reinvent yourself. Take it from Paul Tasner -- after working continuously for other people for 40 years, he founded his own start-up at age 66, pairing his idea for a business with his experience and passion. And he's not alone. As he shares in this short, funny and inspirational talk, seniors are increasingly indulging their entrepreneurial instincts -- and seeing great success.

Greg Gage: Electrical experiments with plants that count and communicate

TED2017

Greg Gage: Electrical experiments with plants that count and communicate

1,946,622 views

Readability: 3.3


Neuroscientist Greg Gage takes sophisticated equipment used to study the brain out of graduate-level labs and brings them to middle- and high-school classrooms (and, sometimes, to the TED stage.) Prepare to be amazed as he hooks up the Mimosa pudica, a plant whose leaves close when touched, and the Venus flytrap to an EKG to show us how plants use electrical signals to convey information, prompt movement and even count.

Christiane Amanpour: How to seek truth in the era of fake news

TEDGlobal>NYC

Christiane Amanpour: How to seek truth in the era of fake news

1,518,591 views

Readability: 4.3


Known worldwide for her courage and clarity, Christiane Amanpour has spent the past three decades interviewing business, cultural and political leaders who have shaped history. In conversation with TED Curator Chris Anderson, Amanpour discusses fake news, objectivity in journalism, the leadership vacuum in global politics and more, sharing her wisdom along the way. "Be careful where you get information from," she says. "Unless we are all engaged as global citizens who appreciate the truth, who understand science, empirical evidence and facts, then we are going to be wandering around -- to a potential catastrophe."

Eric Dyer: The forgotten art of the zoetrope

TEDxCharlottesville

Eric Dyer: The forgotten art of the zoetrope

1,022,509 views

Readability: 4.1


Artist Eric Dyer spent years working at a computer to produce images for the screen. Longing to get his hands back on his work, he began exploring the zoetrope, a popular 19th-century device that was used to create the illusion of motion long before the arrival of film. In this vibrant talk, he showcases his resulting art inventions: spinning sculptures and that evoke beautiful, dreamlike scenes. (Warning: This talk includes flashing images and lights. Those who are photosensitive or have seizures trigged by strobes are advised to avoid.)

Sara Menker: A global food crisis may be less than a decade away

TEDGlobal 2017

Sara Menker: A global food crisis may be less than a decade away

1,465,792 views

Readability: 5


Sara Menker quit a career in commodities trading to figure out how the global value chain of agriculture works. Her discoveries have led to some startling predictions: "We could have a tipping point in global food and agriculture if surging demand surpasses the agricultural system's structural capacity to produce food," she says. "People could starve and governments may fall." Menker's models predict that this scenario could happen in a decade -- that the world could be short 214 trillion calories per year by 2027. She offers a vision of this impossible world as well as some steps we can take today to avoid it.

Euna Lee: What I learned as a prisoner in North Korea

TEDxIndianaUniversity

Euna Lee: What I learned as a prisoner in North Korea

2,265,630 views

Readability: 3.4


In March 2009, North Korean soldiers captured journalist Euna Lee and her colleague Laura Ling while they were shooting a documentary on the border with China. The courts sentenced them to 12 years of hard labor, but American diplomats eventually negotiated their release. In this surprising, deeply human talk, Lee shares her experience living as the enemy in a detention center for 140 days -- and the tiny gestures of humanity from her guards that sustained her.

David Lee: Why jobs of the future won't feel like work

TED@UPS

David Lee: Why jobs of the future won't feel like work

1,784,950 views

Readability: 4.2


We've all heard that robots are going to take our jobs -- but what can we do about it? Innovation expert David Lee says that we should start designing jobs that unlock our hidden talents and passions -- the things we spend our weekends doing -- to keep us relevant in the age of robotics. "Start asking people what problems they're inspired to solve and what talents they want to bring to work," Lee says. "When you invite people to be more, they can amaze us with how much more they can be."

Sara DeWitt: 3 fears about screen time for kids -- and why they're not true

TED2017

Sara DeWitt: 3 fears about screen time for kids -- and why they're not true

1,523,378 views

Readability: 3.9


We check our phones upwards of 50 times per day -- but when our kids play around with them, we get nervous. Are screens ruining childhood? Not according to children's media expert Sara DeWitt. In a talk that may make you feel a bit less guilty about handing a tablet to a child while you make dinner, DeWitt envisions a future where we're excited to see kids interacting with screens and shows us exciting ways new technologies can actually help them grow, connect and learn.

Prumsodun Ok: The magic of Khmer classical dance

TED2017

Prumsodun Ok: The magic of Khmer classical dance

1,209,912 views

Readability: 4.1


For more than 1,000 years, Khmer dancers in Cambodia have been seen as living bridges between heaven and earth. In this graceful dance-talk hybrid, artist Prumsodun Ok -- founder of Cambodia's first all-male and gay-identified dance company -- details the rich history of Khmer classical dance and its current revival, playing the ancient and ageless role of artist as messenger.

Chika Ezeanya-Esiobu: How Africa can use its traditional knowledge to make progress

TEDGlobal 2017

Chika Ezeanya-Esiobu: How Africa can use its traditional knowledge to make progress

1,166,749 views

Readability: 4.6


Chika Ezeanya-Esiobu wants to see Africans unleash their suppressed creative and innovative energies by acknowledging the significance of their indigenous, authentic knowledge. In this powerful talk, she shares examples of untapped, traditional African knowledge in agriculture and policy-making, calling on Africans to make progress by validating and dignifying their reality.

Naomi McDougall Jones: What it's like to be a woman in Hollywood

TEDxBeaconStreet

Naomi McDougall Jones: What it's like to be a woman in Hollywood

1,106,857 views

Readability: 3.4


What we see in movies matters: it affects our hobbies, our career choices, our emotions and even our identities. Right now, we don't see enough women on screen or behind the camera -- but waiting for Hollywood to grow a conscience isn't going to fix the problem, says Naomi McDougall Jones. Join forces with the actor and activist as she outlines her four-point plan for a total representation revolution in Hollywood.

Nikki Webber Allen: Don't suffer from your depression in silence

TED Residency

Nikki Webber Allen: Don't suffer from your depression in silence

1,898,672 views

Readability: 4.2


Having feelings isn't a sign of weakness -- they mean we're human, says producer and activist Nikki Webber Allen. Even after being diagnosed with anxiety and depression, Webber Allen felt too ashamed to tell anybody, keeping her condition a secret until a family tragedy revealed how others close to her were also suffering. In this important talk about mental health, she speaks openly about her struggle -- and why communities of color must undo the stigma that misreads depression as a weakness and keeps sufferers from getting help.

Christian Rodríguez: What teen pregnancy looks like in Latin America

TEDGlobal 2017

Christian Rodríguez: What teen pregnancy looks like in Latin America

1,222,731 views

Readability: 5.2

No Video

Christian Rodríguez is a photographer and filmmaker -- and the son of a teenage mother. For the past five years, he has documented teen pregnancy in Latin America, creating intimate and dignified portraits of mothers as young as 12 years old. In this moving, visual talk, he shares his work and explores how young motherhood traps girls in a cycle of poverty and exploitation.

Theo E.J. Wilson: A black man goes undercover in the alt-right

TEDxMileHigh

Theo E.J. Wilson: A black man goes undercover in the alt-right

3,113,210 views

Readability: 4.4


In an unmissable talk about race and politics in America, Theo E.J. Wilson tells the story of becoming Lucius25, white supremacist lurker, and the unexpected compassion and surprising perspective he found from engaging with people he disagrees with. He encourages us to let go of fear, embrace curiosity and have courageous conversations with people who think differently from us. "Conversations stop violence, conversations start countries and build bridges," he says.

Gabriela González: How LIGO discovered gravitational waves -- and what might be next

TED2017

Gabriela González: How LIGO discovered gravitational waves -- and what might be next

468,822 views

Readability: 4.2


More than 100 years after Albert Einstein predicted gravitational waves -- ripples in space-time caused by violent cosmic collisions -- LIGO scientists confirmed their existence using large, extremely precise detectors in Louisiana and Washington. Astrophysicist Gabriela González of the LIGO Scientific Collaboration tells us how this incredible, Nobel-winning discovery happened -- and what it might mean for our understanding of the universe. (In Spanish with English subtitles)

Levon Biss: Mind-blowing, magnified portraits of insects

TED2017

Levon Biss: Mind-blowing, magnified portraits of insects

1,168,849 views

Readability: 3.7


Photographer Levon Biss was looking for a new, extraordinary subject when one afternoon he and his young son popped a ground beetle under a microscope and discovered the wondrous world of insects. Applying his knowledge of photography to subjects just five millimeters long, Biss created a process for shooting insects in unbelievable microscopic detail. He shares the resulting portraits -- each comprised of 8- to 10,000 individual shots -- and a story about how inspiration can come from the most unlikely places.

Nabila Alibhai: Why people of different faiths are painting their houses of worship yellow

TEDGlobal 2017

Nabila Alibhai: Why people of different faiths are painting their houses of worship yellow

1,119,137 views

Readability: 4.6


Divisions along religious lines are deepening, and we're doubting more and more how much we have in common. How can we stand boldly and visibly together? Inspired by an idea from her collaborator Yazmany Arboleda, place-maker Nabila Alibhai and her colleagues created "Colour in Faith," a social practice art project that unites people of different religions by getting them to paint each other's houses of worship yellow, in a show of solidarity. "We've proven that the human family can come together and send a message far brighter and more powerful than the voices of those that wish to do us harm," Alibhai says.

Helen Pearson: Lessons from the longest study on human development

TED2017

Helen Pearson: Lessons from the longest study on human development

2,068,083 views

Readability: 3.4


For the past 70 years, scientists in Britain have been studying thousands of children through their lives to find out why some end up happy and healthy while others struggle. It's the longest-running study of human development in the world, and it's produced some of the best-studied people on the planet while changing the way we live, learn and parent. Reviewing this remarkable research, science journalist Helen Pearson shares some important findings and simple truths about life and good parenting.

Karoliina Korppoo: How a video game might help us build better cities

TED2017

Karoliina Korppoo: How a video game might help us build better cities

1,395,942 views

Readability: 2.8


With more than half of the world population living in cities, one thing is undeniable: we are an urban species. Part game, part urban planning sketching tool, "Cities: Skylines" encourages people to use their creativity and self-expression to rethink the cities of tomorrow. Designer Karoliina Korppoo takes us on a tour through some extraordinary places users have created, from futuristic fantasy cities to remarkably realistic landscapes. What does your dream city look like?

Olúfẹ́mi Táíwò: Why Africa must become a center of knowledge again

TEDGlobal 2017

Olúfẹ́mi Táíwò: Why Africa must become a center of knowledge again

1,098,940 views

Readability: 5.8


How can Africa, the home to some of the largest bodies of water in the world, be said to have a water crisis? It doesn't, says Olúfẹ́mi Táíwò -- it has a knowledge crisis. Táíwò suggests that lack of knowledge on important topics like water and food is what stands between Africa's current state and a future of prosperity. In a powerful talk, he calls for Africa to make the production of knowledge within the continent rewarding and reclaim its position as a locus of learning on behalf of humanity.

Sethembile Msezane: Living sculptures that stand for history's truths

TEDGlobal 2017

Sethembile Msezane: Living sculptures that stand for history's truths

1,093,658 views

Readability: 4.3


In the century-old statues that occupy Cape Town, Sethembile Mzesane didn't see anything that looked like her own reality. So she became a living sculpture herself, standing for hours on end in public spaces dressed in symbolic costumes, to reclaim the city and its public spaces for her community. In this powerful, tour-de-force talk, she shares the stories and motivation behind her mesmerizing performance art.

Duarte Geraldino: What we're missing in the debate about immigration

TED Residency

Duarte Geraldino: What we're missing in the debate about immigration

1,111,771 views

Readability: 4.2


Between 2008 and 2016, the United States deported more than three million people. What happens to those left behind? Journalist Duarte Geraldino picks up the story of deportation where the state leaves off. Learn more about the wider impact of forced removal as Geraldino explains how the sudden absence of a mother, a local business owner or a high school student ripples outward and wreaks havoc on the relationships that hold our communities together.

Anna Heringer: The warmth and wisdom of mud buildings

TED2017

Anna Heringer: The warmth and wisdom of mud buildings

1,088,082 views

Readability: 4


"There are a lot of resources given by nature for free -- all we need is our sensitivity to see them and our creativity to use them," says architect Anna Heringer. Heringer uses low-tech materials like mud and bamboo to create structures from China to Switzerland, Bangladesh and beyond. Visit an awe-inspiring school, an elegant office and cozy social spaces -- all built from natural materials -- in this delightful talk.

Julio Gil: Future tech will give you the benefits of city life anywhere

TED@UPS

Julio Gil: Future tech will give you the benefits of city life anywhere

1,315,136 views

Readability: 3.8


Don't believe predictions that say the future is trending towards city living. Urbanization is actually reaching the end of its cycle, says logistics expert Julio Gil, and soon more people will be choosing to live (and work) in the countryside, thanks to rapid advances in augmented reality, autonomous delivery, off-the-grid energy and other technologies. Think outside city walls and consider the advantages of country living with this forward-thinking talk.

Caitlin Quattromani and Lauran Arledge: How our friendship survives our opposing politics

TEDxMileHigh

Caitlin Quattromani and Lauran Arledge: How our friendship survives our opposing politics

1,094,734 views

Readability: 4.4


Can you still be friends with someone who doesn't vote the same way as you? For Caitlin Quattromani and Lauran Arledge, two best friends who think very differently about politics, the outcome of the 2016 US presidential election could have resulted in hostility and disrespect. Hear about how they chose to engage in dialogue instead -- and learn some simple tactics they're using to maintain their bipartisan friendship.

Pierre Thiam: A forgotten ancient grain that could help Africa prosper

TED2017

Pierre Thiam: A forgotten ancient grain that could help Africa prosper

1,126,537 views

Readability: 5.9


Forget quinoa. Meet fonio, an ancient "miracle grain" native to Senegal that's versatile, nutritious and gluten-free. In this passionate talk, chef Pierre Thiam shares his obsession with the hardy crop and explains why he believes that its industrial-scale cultivation could transform societies in Africa.

Anindya Kundu: The boost students need to overcome obstacles

TED Residency

Anindya Kundu: The boost students need to overcome obstacles

1,463,900 views

Readability: 4.8


How can disadvantaged students succeed in school? For sociologist Anindya Kundu, grit and stick-to-itiveness aren't enough; students also need to develop their agency, or their capacity to overcome obstacles and navigate the system. He shares hopeful stories of students who have defied expectations in the face of personal, social and institutional challenges.

OluTimehin Adegbeye: Who belongs in a city?

TEDGlobal 2017

OluTimehin Adegbeye: Who belongs in a city?

2,065,278 views

Readability: 4.7


Underneath every shiny new megacity, there's often a story of communities displaced. In this moving, poetic talk, OluTimehin Adegbeye details how government land grabs are destroying the lives of thousands who live in the coastal communities of Lagos, Nigeria, to make way for a "new Dubai." She compels us to hold our governments and ourselves accountable for keeping our cities safe for everyone. "The only cities worth building, indeed the only futures worth dreaming of, are those that include all of us, no matter who we are or how we make homes for ourselves," she says.

Mei Lin Neo: The fascinating secret lives of giant clams

TED2017

Mei Lin Neo: The fascinating secret lives of giant clams

1,186,864 views

Readability: 4.7


When you think about the deep blue sea, you might instantly think of whales or coral reefs. But spare a thought for giant clams, the world's largest living shellfish. These incredible creatures can live to 100, grow up to four and a half feet long and weigh as much as three baby elephants. In this charming talk, marine biologist Mei Lin Neo shares why she's obsessively trying to turn these legendary sea creatures into heroes of the oceans.