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1,600,542 views
Social Studies
How one of the most profitable companies in history rose to power
lesson duration 05:05
738,257 views
Design, Engineering & Technology
Yes, scientists are actually building an elevator to space
lesson duration 05:19
749,556 views
471,171 views
318,462 views
598,778 views
605,385 views
Science & Technology
Nature's fortress: How cacti keep water in and predators out
lesson duration 04:20
506,867 views
338,648 views
1,358,104 views
412,000 views
Science & Technology
Just add water: The garden insect that can turn into a plague
lesson duration 05:46
501,619 views
509,510 views
1,926,743 views
Design, Engineering & Technology
The surprisingly long history of electric cars
lesson duration 05:20
402,650 views
417,230 views
789,329 views
3,428,483 views
306,356 views
493,770 views
786,906 views
Science & Technology
The genes you don't get from your parents (but can't live without)
lesson duration 05:03
1,606,584 views
596,154 views