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Why good ideas get trapped in the valley of death— and how to rescue them
Lesson duration 05:10
757,775 Views
990,355 Views
1,020,240 Views
305,911 Views
1,437,952 Views
682,493 Views
What it's like to live on the International Space Station - Cady Coleman
Lesson duration 06:17
76,967 Views
1,306,394 Views
1,208,172 Views
431,424 Views
447,452 Views
What it takes to be racially literate - Priya Vulchi and Winona Guo
Lesson duration 12:23
142,162 Views
3,685,368 Views
411,098 Views
The incredible, bendable, twistable, expandable elephant trunk
Lesson duration 05:10
255,503 Views
509,331 Views
376,713 Views
1,332,209 Views
143,316 Views
230,672 Views