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Sean Carroll: Distant Time and the Hint of a Multiverse

At TEDxCaltech, cosmologist Sean Carroll attacks -- in an entertaining and thought-provoking tour through the nature of time and the universe -- a deceptively simple question: Why does time exist at all? The potential answers point to a surprising view of the nature of the universe, and our place in it.


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The Psychology of Your Future Self - Video by Dan Gilbert

The Psychology of Your Future Self - Video by Dan Gilbert

Dan Gilbert shares recent research on a phenomenon he calls the 'end of history illusion,' where we somehow imagine that the person we are right now is the person we'll be for the rest of time.

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YANTRA YOGA The Tibetan Yoga of Movement

YANTRA YOGA The Tibetan Yoga of Movement

Yantra Yoga, the Buddhist parallel to the Hathayoga of the Hindu tradition, is a system of practice entailing bodily movements, breathing exercises, and visualizations.

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Lucianne Walkowicz: Look Up For a Change

Lucianne Walkowicz: Look Up For a Change

Lucianne Walkowicz explains the importance of preserving our dark night sky from the perils of light pollution and other lesser-known factors.

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The True Cost of Oil: Garth Lenz

The True Cost of Oil: Garth Lenz

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.

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Oh, the Places You'll Go at Burning Man!

Oh, the Places You'll Go at Burning Man!

Based on Dr. Seuss's final book before his death, this is a story about life's ups and downs, told by the people of Burning Man 2011.

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