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What is an aurora? - Michael Molina
Explore the science behind what causes the incredible light and color of the Aurora Borealis and Aurora Australis.
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Why do we see those stunning lig…
3 weeks, 6 days ago
Preparing for oil's conclusion - Richard Sears
View full lesson: http://ed.ted.com/lessons/planning-for-the-end-of-oil-richard-sears
As the world's attention focuses on the perils of oil exploratio…
3 weeks, 6 days ago
Moral behavior in animals - Frans de Waal
Empathy, cooperation, fairness and reciprocity -- caring about the well-being of others seems like a very human trait. But Frans de Waal shares some …
3 weeks, 6 days ago
How to rehabilitate a rainforest - Willie Smits
By piecing together a complex ecological puzzle, biologist Willie Smits believes he has found a way to re-grow clearcut rainforest in Borneo, saving …
3 weeks, 6 days ago
What happened to the lost Kingdom of Kush? - Geoff Emberling
Trace the rise and fall of the Kingdom of Kush, an overlooked ancient African civilization which fought off both the Egyptians and Romans.
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Along th…
3 weeks, 6 days ago
Scientists are mesmerized by this lake - Nicola Storelli and Daniele Zanzi
Explore the depths of Lake Cadagno, a meromictic lake that is considered a model for Earth before the Great Oxidation Event.
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In the millions of year…
3 weeks, 6 days ago
Revealing photography: From camera obscura to camera phone - Eva Timothy
VIew full lesson: http://ed.ted.com/lessons/illuminating-photography-eva-timothy
The origins of the cameras we use today were invented in the 19th cen…
3 weeks, 6 days ago
Exploring cell membranes through dish detergent - Ethan Perlstein
View full lesson: http://ed.ted.com/lessons/insights-into-cell-membranes-via-dish-detergent-ethan-perlstein
The cell membrane, like a good jacket, pro…
3 weeks, 6 days ago
Beatboxing 101 - BEAT NYC
View full lesson: http://ed.ted.com/lessons/beatboxing-101-beat-nyc
There's no need for instruments to make music; you can use the greatest instrument…
3 weeks, 6 days ago
Learning from a barefoot movement - Bunker Roy
In Rajasthan, India, an extraordinary school teaches rural women and men -- many of them illiterate -- to become solar engineers, artisans, dentists …
3 weeks, 6 days ago