Fresh food free of chemicals and pesticides is hard to come by in China: in 2016, the Chinese government revealed half a million food safety violations in just nine months. In the absence of safe, sustainable food sources, TED Fellow Matilda Ho launched China's first online farmers market, instituting a zero-tolerance test towards pesticides, an...

Where does OK Go come up with ideas like dancing in zero gravity, performing in ultra slow motion or constructing a warehouse-sized Rube Goldberg machine for their music videos? In between live performances of "This Too Shall Pass" and "The One Moment," lead singer and director Damian Kulash takes us inside the band's creative process, showing u...

The Sleepy Man Banjo Boys is made up of 11-year-old banjo sensation Jonny Mizzone and his brothers Robbie, 14, on fiddle, and Tommy, 15, on guitar.

Why do great thoughts and stories resonate so strongly with so many people, and how do we communicate them? Using fMRI experiments, Uri Hasson is looking for the answers.

Al Seckel explored how eye tricks can reveal the way the brain processes visual information -- or fails to do so. Among his other accomplishments: He co-created the Darwin Fish.

Twice the world yo-yo champion, BLACK mixes dance, sport and performance to create unforgettable yo-yo moments.

Scientists and entrepreneurs have been cooking up innovative ways to put food on our tables. What are they serving up next?

iO Tillett Wright has photographed 2,000 people who consider themselves somewhere on the LGBTQ spectrum -- and asked many of them: Can you assign a percentage to how gay or straight you are? Most people, it turns out, consider themselves to exist in the gray areas of sexuality, not 100% gay or straight. Which presents a real problem when it come...

During World War I, scientists were trying to develop an antidote to the poisonous yellow cloud known as mustard gas. They discovered the gas was irrevocably damaging the bone marrow of affected soldiers. This gave the scientists an idea: cancer cells and bone marrow both replicate rapidly. Could mustard gas be used to fight cancer? Hyunsoo No d...

Keller Rinaudo is CEO and co-founder of Zipline, building drone delivery for global public health customers. (He's also co-founder of Romotive, makers of the tiny robot, Romo.)

Lauren Hodge won the 2011 Google Science Fair in the age 13-14 category.

Naomi Shah won the 2011 Google Science Fair in the age 15-16 category.

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

At Sightsavers, an international NGO, Caroline Harper leads efforts to eliminate avoidable blindness around the world and fight for equal rights.

Ashton Applewhite asks us to look at ageism -- the assumption that older people are alike and that aging impoverishes us.

"Puppets always have to try to be alive," says Adrian Kohler of the Handspring Puppet Company, a gloriously ambitious troupe of human and wooden actors. Beginning with the tale of a hyena's subtle paw, puppeteers Kohler and Basil Jones build to the story of their latest astonishment: the wonderfully life-like Joey, the War Horse, who trots (and ...

Mindfulness expert Andy Puddicombe wants to make meditation accessible to everybody: for a happier, healthier you.

About this video: "When you don’t know where your next meal is coming from, it’s all-consuming. You can’t focus on anything else." Moved by the round-the-block lines he witnessed while working at a food shelter for a school community service project, 16 year-old Kiran Sridhar founded the "shared economy" platform Waste No Food which connects lef...

Designer Isaac Mizrahi dashed off these stylish, breezy notes on why these 6 TEDTalks are a source of inspiration for him.

Nilay Kulkarni is the co-founder and chief technical officer of Ashioto Analytics, a real-time crowd flow analysis platform.

Jeanne Pinder asks why it's so hard to make sense of US healthcare bills -- and suggests what we might do about it.

Abigail Marsh asks essential questions: If humans are evil, why do we sometimes go to extraordinary lengths to help others even at a cost to ourselves?

A TEDGlobal Fellow, Catarina Mota plays with "smart materials" -- like shape-memory alloys and piezoelectric structures that react to voltage -- and encourages others to do so too.

Two thirds of the population believes a myth that has been propagated for over a century: that we use only 10% of our brains. Hardly! Our neuron-dense brains have evolved to use the least amount of energy while carrying the most information possible -- a feat that requires the entire brain. Richard E. Cytowic debunks this neurological myth (and ...

Powerful, personal stories of sharing one's true identity with the world.

Mai Lan is a French-Vietnamese artist and musician.

BCG's Julia Dhar is a champion of ideas, facts and constructive disagreement.

Nobel laureate James Watson took part in one of the most important scientific breakthroughs of the 20th century: the discovery of the structure of DNA. More than 50 years later, he continues to investigate biology's deepest secrets.

Eric Berridge is an entrepreneurial humanist who believes our society is overly obsessed with STEM.

These moving, personal talks share stories of love and commitment in the LGBTQ community.