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Design, Engineering & Technology
How do jetpacks work? And why don't we all have them?
Lesson duration 05:03
282,372 Views
775,740 Views
1,064,407 Views
655,981 Views
692,267 Views
848,853 Views
1,371,022 Views
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3,603,322 Views
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Design, Engineering & Technology
Blood, concrete, and dynamite: Building the Hoover Dam
Lesson duration 05:12
891,699 Views
1,955,070 Views
703,765 Views
2,078,531 Views
Social Studies
How one of the most profitable companies in history rose to power
Lesson duration 05:05
789,676 Views
Design, Engineering & Technology
Yes, scientists are actually building an elevator to space
Lesson duration 05:19
775,252 Views
528,776 Views
333,324 Views
648,412 Views