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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.


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How To Restore Your Faith In Humanity

Lost faith in humanity? These 10 moments may help you restore your faith in our species.

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Amy Purdy - Living Beyond Limits

Amy Purdy talks about the power of imagination. She explains how our lives are not determined by what happens to us, but by the choices we make. Imagination allows us to break down borders, to move beyond our circumstances, to create and constantly progress.

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Ron Gutman: The Hidden Power of Smiling

Ron Gutman reviews a raft of studies about smiling, and reveals some surprising results. Did you know your smile can be a predictor of how long you'll live -- and that a simple smile has a measurable effect on your overall well-being? Prepare to flex a few facial muscles as you learn more about this evolutionarily contagious behavior.

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Van Gogh's Starry Night Comes Alive

A try to visualize the flow of the famous painting "Starry Night" of Vincent Van Gogh. The user can interact with the animation. Also, the sound responds to the flow.

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Defying Gravity

What happens in our brain when we view an optical illusion? The information gathered by the eye is processed in the brain to create an idea or image that does not match with a physical measurement of the stimulus source.

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