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Design, Engineering & Technology
Why are airplanes slower than they used to be?
Lesson duration 04:59
2,328,931 Views
2,431,292 Views
44,027 Views
4,929,560 Views
146,092 Views
944,855 Views
Business & Economics
Why good ideas get trapped in the valley of death— and how to rescue them
Lesson duration 05:10
758,446 Views
992,715 Views
1,021,772 Views
306,920 Views
1,443,770 Views
683,784 Views
Science & Technology
What it's like to live on the International Space Station - Cady Coleman
Lesson duration 06:17
77,045 Views
1,313,575 Views
1,215,017 Views
431,900 Views
448,073 Views
Social Studies
What it takes to be racially literate - Priya Vulchi and Winona Guo
Lesson duration 12:23
142,327 Views
3,688,852 Views
412,413 Views
Science & Technology
The incredible, bendable, twistable, expandable elephant trunk
Lesson duration 05:10
255,767 Views
512,784 Views
377,552 Views