VORTRÄGE51 Videos

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15:00

The world doesn’t need more nuclear weapons | Erika Gregory

Today nine nations collectively control more than 15,000 nuclear weapons, each hundreds of times more powerful than those dropped on Hiroshima and Nagasaki. We don’t need more nuclear weapons; we need a new generation to face the unfinished challenge of disarmament started decades ago. Nuclear reformer Erika Gregory calls on today’s rising leaders — those […]
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Are you a giver or a taker? | Adam Grant

In every workplace, there are three basic kinds of people: givers, takers and matchers. Organizational psychologist Adam Grant breaks down these personalities and offers simple strategies to promote a culture of generosity and keep self-serving employees from taking more than their share. TEDTalks is a daily video podcast of the best talks and performances from […]
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16:28

It’s time to reclaim religion | Sharon Brous

At a moment when the world seems to be spinning out of control, religion might feel irrelevant — or like part of the problem. But Rabbi Sharon Brous believes we can reinvent religion to meet the needs of modern life. In this impassioned talk, Brous shares four principles of a revitalized religious practice and offers […]
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15:55

How we explore unanswered questions in physics | James Beacham

James Beacham looks for answers to the most important open questions of physics using the biggest science experiment ever mounted, CERN’s Large Hadron Collider. In this fun and accessible talk about how science happens, Beacham takes us on a journey through extra-spatial dimensions in search of undiscovered fundamental particles (and an explanation for the mysteries […]
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11:56

Why Earth may someday look like Mars | Anjali Tripathi

Every minute, 400 pounds of hydrogen and almost 7 pounds of helium escape from Earth’s atmosphere into outer space. Astrophysicist Anjali Tripathi studies the phenomenon of atmospheric escape, and in this fascinating and accessible talk, she considers how this process might one day (a few billion years from now) turn our blue planet red. TEDTalks […]
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How online abuse of women has spiraled out of control | Ashley Judd

Enough with online hate speech, sexual harassment and threats of violence against women and marginalized groups. It’s time to take the global crisis of online abuse seriously. In this searching, powerful talk, Ashley Judd recounts her ongoing experience of being terrorized on social media for her unwavering activism and calls on citizens of the internet, […]
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What happens when you have a disease doctors can’t diagnose | Jennifer Brea

Five years ago, TED Fellow Jen Brea became progressively ill with myalgic encephalomyelitis, commonly known as chronic fatigue syndrome, a debilitating illness that severely impairs normal activities and on bad days makes even the rustling of bed sheets unbearable. In this poignant talk, Brea describes the obstacles she’s encountered in seeking treatment for her condition, […]
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10:21

How students of color confront impostor syndrome | Dena Simmons

As a black woman from a tough part of the Bronx who grew up to attain all the markers of academic prestige, Dena Simmons knows that for students of color, success in school sometimes comes at the cost of living authentically. Now an educator herself, Simmons discusses how we might create a classroom that makes […]
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18:24

Could a drug prevent depression and PTSD? | Rebecca Brachman

The path to better medicine is paved with accidental yet revolutionary discoveries. In this well-told tale of how science happens, neuroscientist Rebecca Brachman shares news of a serendipitous breakthrough treatment that may prevent mental disorders like depression and PTSD from ever developing. And listen for an unexpected — and controversial — twist. TEDTalks is a […]
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13:45

How AI can bring on a second Industrial Revolution | Kevin Kelly

„The actual path of a raindrop as it goes down the valley is unpredictable, but the general direction is inevitable,“ says digital visionary Kevin Kelly — and technology is much the same, driven by patterns that are surprising but inevitable. Over the next 20 years, he says, our penchant for making things smarter and smarter […]