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85,569 Views
Design, Engineering & Technology
Why are airplanes slower than they used to be?
Lesson duration 04:59
2,329,170 Views
2,432,023 Views
44,029 Views
4,933,929 Views
146,214 Views
945,260 Views
Business & Economics
Why good ideas get trapped in the valley of death— and how to rescue them
Lesson duration 05:10
758,530 Views
993,157 Views
1,022,119 Views
307,144 Views
1,444,782 Views
684,086 Views
Science & Technology
What it's like to live on the International Space Station - Cady Coleman
Lesson duration 06:17
77,078 Views
1,315,517 Views
1,216,216 Views
432,010 Views
448,199 Views
Social Studies
What it takes to be racially literate - Priya Vulchi and Winona Guo
Lesson duration 12:23
142,401 Views
3,689,653 Views
412,690 Views
Science & Technology
The incredible, bendable, twistable, expandable elephant trunk
Lesson duration 05:10
255,832 Views
513,507 Views