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Phil Plait: How to Defend Earth From Asteroids

What's six miles wide and can end civilization in an instant? An asteroid - and there are lots of them out there. With humor and great visuals, Phil Plait enthralls the TEDxBoulder audience with all the ways asteroids can kill, and what we must do to avoid them.


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Brene Brown: The Power of Vulnerability

Brene Brown studies human connection -- our ability to empathize, belong, love. In a poignant, funny talk at TEDxHouston, she shares a deep insight from her research, one that sent her on a personal quest to know herself as well as to understand humanity. A talk to share.

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Hannah Brencher: Love Letters to Strangers

Hannah Brencher's mother always wrote her letters. So when she felt herself bottom into depression after college, she did what felt natural -- she wrote love letters and left them for strangers to find. The act has become a global initiative, The World Needs More Love Letters, which rushes handwritten letters to those in need of a boost.

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The Infinite Game: How to Lead in the 21st Century

Simon Sinek joins the How To: Academy to present his latest insights on The Infinite Game. Simon explains how adopting an infinite mindset is necessary for leaders who want to build stronger, more innovative and more inspiring organizations.

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Jane Fonda: Life's Third Act

Within this generation, an extra 30 years have been added to our life expectancy -- and these years aren't just a footnote or a pathology. At TEDxWomen, Jane Fonda asks how we can think about this new phase of our lives.

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Shawn Reeder Yosemite Range of Light

Yosemite National Park, the High Sierra, and the Eastern Sierra are some of the most beautiful places on earth.

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