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Business & Economics
Why good ideas get trapped in the valley of death— and how to rescue them
lesson duration 05:10
746,282 views
Science & Technology
What it's like to live on the International Space Station - Cady Coleman
lesson duration 06:17
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Science & Technology
The incredible, bendable, twistable, expandable elephant trunk
lesson duration 05:10
249,946 views
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Science & Technology
The material that could change the world... for a third time
lesson duration 05:27
884,615 views
597,673 views
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Science & Technology
Climate change will displace millions. Here's how we prepare - Colette Pichon Battle
lesson duration 12:48
133,041 views
Science & Technology
3 bizarre (and delightful) ancient theories about bird migration
lesson duration 05:42
333,731 views
Design, Engineering & Technology
Building the world's largest (and most controversial) power plant
lesson duration 05:38
881,663 views
636,552 views
576,484 views