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85,623 Views
Design, Engineering & Technology
Why are airplanes slower than they used to be?
Lesson duration 04:59
2,329,708 Views
2,433,741 Views
44,041 Views
4,946,554 Views
146,485 Views
946,305 Views
Business & Economics
Why good ideas get trapped in the valley of death— and how to rescue them
Lesson duration 05:10
758,773 Views
994,126 Views
1,022,886 Views
307,695 Views
1,446,722 Views
684,734 Views
Science & Technology
What it's like to live on the International Space Station - Cady Coleman
Lesson duration 06:17
77,152 Views
1,318,861 Views
1,219,200 Views
432,199 Views
448,617 Views
Social Studies
What it takes to be racially literate - Priya Vulchi and Winona Guo
Lesson duration 12:23
142,514 Views
3,691,395 Views
413,245 Views
Science & Technology
The incredible, bendable, twistable, expandable elephant trunk
Lesson duration 05:10
255,967 Views