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Why good ideas get trapped in the valley of death— and how to rescue them
Lesson duration 05:10
766,612 Views
1,025,044 Views
1,038,738 Views
319,601 Views
1,504,067 Views
719,040 Views
What it's like to live on the International Space Station - Cady Coleman
Lesson duration 06:17
78,198 Views
1,410,666 Views
1,295,450 Views
441,241 Views
457,030 Views
What it takes to be racially literate - Priya Vulchi and Winona Guo
Lesson duration 12:23
145,998 Views
3,729,176 Views
427,667 Views
The incredible, bendable, twistable, expandable elephant trunk
Lesson duration 05:10
259,922 Views
545,921 Views
386,583 Views
1,366,385 Views
144,778 Views
236,069 Views
659,961 Views