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Why good ideas get trapped in the valley of death— and how to rescue them
Lesson duration 05:10
766,882 Views
1,026,237 Views
1,039,426 Views
320,213 Views
1,506,601 Views
720,989 Views
What it's like to live on the International Space Station - Cady Coleman
Lesson duration 06:17
78,297 Views
1,413,943 Views
1,298,640 Views
441,521 Views
457,270 Views
What it takes to be racially literate - Priya Vulchi and Winona Guo
Lesson duration 12:23
146,187 Views
3,730,774 Views
428,582 Views
The incredible, bendable, twistable, expandable elephant trunk
Lesson duration 05:10
260,192 Views
547,322 Views
386,926 Views
1,368,019 Views
144,827 Views
236,167 Views