By dissecting a cockroach ... yes, live on stage ... TED Fellow and neuroscientist Greg Gage shows how brains receive and deliver electric impulses -- and how legs can respond. This talk comes from the TED-Ed project.
Can government be run like the Internet, permissionless and open? Coder and activist Jennifer Pahlka believes it can -- and that apps, built quickly and cheaply, are a powerful new way to connect citizens to their governments -- and their neighbors.
Top climate scientist James Hansen tells the story of his involvement in the science of and debate over global climate change. In doing so he outlines the overwhelming evidence that change is happening and why that makes him deeply worried about the future.
Filmmaker Andrew Stanton ("Toy Story," "WALL-E") shares what he knows about storytelling -- starting at the end and working back to the beginning. Contains graphic language ... (Note: this talk is not available for download.)
In an engaging and personal talk -- with cameo appearances from his grandmother and Rosa Parks -- human rights lawyer Bryan Stevenson shares some hard truths about America's justice system, starting with a massive imbalance along racial lines: a third of the country's black male population has been incarcerated at some point in their lives. These issues, which are wrapped up in America's unexamined history, are rarely talked about with this level of candor, insight and persuasiveness.
In a culture where being social and outgoing are prized above all else, it can be difficult, even shameful, to be an introvert. But, as Susan Cain argues in this passionate talk, introverts bring extraordinary talents and abilities to the world, and should be encouraged and celebrated.
Onstage at TED2012, Peter Diamandis makes a case for optimism -- that we'll invent, innovate and create ways to solve the challenges that loom over us. "I’m not saying we don’t have our set of problems; we surely do. But ultimately, we knock them down.”
Have we used up all our resources? Have we filled up all the livable space on Earth? Paul Gilding suggests we have, and the possibility of devastating consequences, in a talk that's equal parts terrifying and, oddly, hopeful.
The ocean has degraded within our lifetimes, as shown in the decreasing average size of fish. And yet, as Daniel Pauly shows us onstage at Mission Blue, each time the baseline drops, we call it the new "normal." At what point do we stop readjusting downward?
Oceanographer Paul Snelgrove shares the results of a ten-year project with one goal: to take a census of all the life in the oceans. He shares amazing photos of some of the surprising finds of the Census of Marine Life.
Were you the favorite child, the wild child or the middle child? Jeffrey Kluger explores the profound life-long bond between brothers and sisters, and the influence of birth order, favoritism and sibling rivalry.
In 2010, technologist Tan Le took the TEDGlobal stage to demo a powerful new interface. But now, at TEDxWomen, she tells a very personal story: the story of her family -- mother, grandmother and sister -- fleeing Vietnam and building a new life.
It's easy to imagine saving money next week, but how about right now? Generally, we want to spend it. Economist Shlomo Benartzi says this is one of the biggest obstacles to saving enough for retirement, and asks: How do we turn this behavioral challenge into a behavioral solution?
Has our technology -- our cell phones and iPods and cameras -- stopped us from dreaming? Young artist Shilo Shiv Suleman says no, as she demos "Khoya," her new storybook for iPad, which floats us through a magical world in 7 minutes of pure creativity.
A clay cylinder covered in Akkadian cuneiform script, damaged and broken, the Cyrus Cylinder is a powerful symbol of religious tolerance and multi-culturalism. In this enthralling talk Neil MacGregor, Director of the British Museum, traces 2600 years of Middle Eastern history through this single object.
How often do you see the true beauty of the night sky? TED Fellow Lucianne Walkowicz shows how light pollution is ruining the extraordinary -- and often ignored -- experience of seeing directly into space.
What does environmental devastation actually look like? At TEDxVictoria, photographer Garth Lenz shares shocking photos of the Alberta Tar Sands mining project -- and the beautiful (and vital) ecosystems under threat.
The disastrous earthquake in Haiti taught humanitarian groups an unexpected lesson: the power of mobile devices to coordinate, inform and guide relief efforts. At TEDxRC2, Paul Conneally shows extraordinary examples of social media and other technologies becoming central to humanitarian aid.
They're the second-largest fish in the world, they're almost extinct, and we know almost nothing about them. In this talk, Simon Berrow describes the fascinating basking shark ("great fish of the sun" in Irish), and the exceptional -- and wonderfully low-tech -- ways he's learning enough to save them.
You can use your smartphone to find a local ATM, but what if you need a defibrillator? Lucien Engelen shows us online innovations that are changing the way we save lives, including a crowdsourced map of local AEDs.
Filmmaker Penelope Jagessar Chaffer was curious about the chemicals she was exposed to while pregnant: Could they affect her unborn child? So she asked scientist Tyrone Hayes to brief her on one he studied closely: atrazine, a herbicide used on corn. (Hayes, an expert on amphibians, is a critic of atrazine, which displays a disturbing effect on frog development.) Onstage together at TEDWomen, Hayes and Chaffer tell their story.