Adam Savage: How simple ideas lead to scientific discoveries

TED-Ed

Adam Savage: How simple ideas lead to scientific discoveries

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Adam Savage walks through two spectacular examples of profound scientific discoveries that came from simple, creative methods anyone could have followed -- Eratosthenes' calculation of the Earth's circumference around 200 BC and Hippolyte Fizeau's measurement of the speed of light in 1849. Find more TED-Ed videos on our new YouTube channel: youtube.com/TEDEd.

David Gallo: Deep ocean mysteries and wonders

TED-Ed

David Gallo: Deep ocean mysteries and wonders

No Transcript

In the deepest, darkest parts of the oceans are ecosystems with more diversity than a tropical rainforest. Taking us on a voyage into the ocean -- from the deepest trenches to the remains of Titanic -- marine biologist David Gallo explores the wonder and beauty of marine life. Find more TED-Ed videos on our new YouTube channel: youtube.com/TEDEd.

Greg Gage: The cockroach beatbox

TED-Ed

Greg Gage: The cockroach beatbox

No Transcript

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.

Jennifer Pahlka: Coding a better government

TED2012

Jennifer Pahlka: Coding a better government


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.

James Hansen: Why I must speak out about climate change

TED2012

James Hansen: Why I must speak out about climate change


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.

Andrew Stanton: The clues to a great story

TED2012

Andrew Stanton: The clues to a great story


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.)

Bryan Stevenson: We need to talk about an injustice

TED2012

Bryan Stevenson: We need to talk about an injustice


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.

Susan Cain: The power of introverts

TED2012

Susan Cain: The power of introverts


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.

Vijay Kumar: Robots that fly ... and cooperate

TED2012

Vijay Kumar: Robots that fly ... and cooperate


In his lab at Penn, Vijay Kumar and his team build flying quadrotors, small, agile robots that swarm, sense each other, and form ad hoc teams -- for construction, surveying disasters and far more.

Peter Diamandis: Abundance is our future

TED2012

Peter Diamandis: Abundance is our future


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.”

Paul Gilding: The Earth is full

TED2012

Paul Gilding: The Earth is full


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.

Daniel Pauly: The ocean's shifting baseline

Mission Blue Voyage

Daniel Pauly: The ocean's shifting baseline


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?

Paul Snelgrove: A census of the ocean

TEDGlobal 2011

Paul Snelgrove: A census of the ocean


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.

Kevin Allocca: Why videos go viral

TEDYouth 2011

Kevin Allocca: Why videos go viral


Kevin Allocca is YouTube's trends manager, and he has deep thoughts about silly web video. In this talk from TEDYouth, he shares the 4 reasons a video goes viral.

Avi Rubin: All your devices can be hacked

TEDxMidAtlantic

Avi Rubin: All your devices can be hacked


Could someone hack your pacemaker? At TEDxMidAtlantic, Avi Rubin explains how hackers are compromising cars, smartphones and medical devices, and warns us about the dangers of an increasingly hack-able world. (Filmed at TEDxMidAtlantic.)

Jeffrey Kluger: The sibling bond

TEDxAsheville

Jeffrey Kluger: The sibling bond

No Transcript

Were you the favorite child, the wild child or the middle child? At TEDxAsheville, Jeffrey Kluger explores the profound life-long bond between brothers and sisters, and the influence of birth order, favoritism and sibling rivalry. (Filmed at TEDxAsheville.)

Tan Le: My immigration story

TEDxWomen 2011

Tan Le: My immigration story


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. (Filmed at TEDxWomen.)

Shlomo Benartzi: Saving for tomorrow, tomorrow

TEDSalon NY2011

Shlomo Benartzi: Saving for tomorrow, tomorrow


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?

Shilo Shiv Suleman: Using tech to enable dreaming

INK Conference

Shilo Shiv Suleman: Using tech to enable dreaming


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.

Chris Bliss: Comedy is translation

TEDxRainier

Chris Bliss: Comedy is translation


Every act of communication is, in some way, an act of translation. Onstage at TEDxRainier, writer Chris Bliss thinks hard about the way that great comedy can translate deep truths for a mass audience. (Filmed at TEDxRainier.)

Neil MacGregor: 2600 years of history in one object

TEDGlobal 2011

Neil MacGregor: 2600 years of history in one object


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.

Lucianne Walkowicz: Look up for a change

TEDxPhoenix

Lucianne Walkowicz: Look up for a change

No Transcript

TED Fellow Lucianne Walkowicz asks: How often do you see the true beauty of the night sky? At TEDxPhoenix, she shows how light pollution is ruining the extraordinary -- and often ignored -- experience of seeing directly into space. (Filmed at TEDxPhoenix.)

Garth Lenz: The true cost of oil

TEDxVictoria

Garth Lenz: The true cost of oil


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. (Filmed at TEDxVictoria.)

Paul Conneally: Digital humanitarianism

TEDxRC2

Paul Conneally: Digital humanitarianism


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 new technologies becoming central to humanitarian aid. (Filmed at TEDxRC2.)

Simon Berrow: How do you save a shark you know nothing about?

TEDxDublin

Simon Berrow: How do you save a shark you know nothing about?


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. (Filmed at TEDxDublin.)

Lucien Engelen: Crowdsource your health

TEDxMaastricht

Lucien Engelen: Crowdsource your health


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 defibrillators.