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85,610 Views
Design, Engineering & Technology
Why are airplanes slower than they used to be?
Lesson duration 04:59
2,329,572 Views
2,433,445 Views
44,041 Views
4,943,935 Views
146,457 Views
946,132 Views
Business & Economics
Why good ideas get trapped in the valley of death— and how to rescue them
Lesson duration 05:10
758,726 Views
993,935 Views
1,022,771 Views
307,606 Views
1,446,414 Views
684,649 Views
Science & Technology
What it's like to live on the International Space Station - Cady Coleman
Lesson duration 06:17
77,143 Views
1,318,265 Views
1,218,743 Views
432,162 Views
448,514 Views
Social Studies
What it takes to be racially literate - Priya Vulchi and Winona Guo
Lesson duration 12:23
142,507 Views
3,691,051 Views
413,134 Views
Science & Technology
The incredible, bendable, twistable, expandable elephant trunk
Lesson duration 05:10
255,948 Views