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04:12 Design, Engineering & Technology How to fly around the world without fuel Lesson duration 04:12 Manage Library 40,018 Views
03:51 Design, Engineering & Technology It's not you. Claw machines are rigged. Lesson duration 03:51 Manage Library 10,011,695 Views
05:43 Business & Economics What does it mean to be a refugee? Lesson duration 05:43 Manage Library 1,429,276 Views
07:13 Earth and Space Science What if everyone jumped at once? Lesson duration 07:13 Manage Library 40,083,523 Views
04:33 History Why wasn’t the Bill of Rights originally in the US Constitution? Lesson duration 04:33 Manage Library 930,170 Views
04:56 The Arts How interpreters juggle two languages at once Lesson duration 04:56 Manage Library 1,693,354 Views
07:05 Social Studies Dr. Sally Ride on Dumb Questions Lesson duration 07:05 Manage Library 114,041 Views
10:52 Philosophy Ralph Waldo Emerson and the Beauty of the Everyday Lesson duration 10:52 Manage Library 1,096,387 Views
04:18 Social Studies Why is the US Constitution so hard to amend? Lesson duration 04:18 Manage Library 1,052,166 Views
03:05 Physical Science Einstein's Theory of General Relativity Lesson duration 03:05 Manage Library 916,268 Views
04:46 Environmental Science The threat of invasive species Lesson duration 04:46 Manage Library 2,269,333 Views
11:44 Design, Engineering & Technology The World's Roundest Object (and Why it Exists) Lesson duration 11:44 Manage Library 38,152,688 Views
04:03 Data Analysis & Probability Should you trust unanimous decisions? Lesson duration 04:03 Manage Library 4,347,878 Views
04:53 Science & Technology Why is Mount Everest so tall? Lesson duration 04:53 Manage Library 2,874,079 Views
05:43 Philosophy & Religion The Philosophy of The Buddha Lesson duration 05:43 Manage Library 3,246,059 Views
04:16 Visual Arts The poet who painted with his words Lesson duration 04:16 Manage Library 355,046 Views
03:53 The Arts Why is this painting so captivating? Lesson duration 03:53 Manage Library 1,320,611 Views
04:28 Social Studies This is Sparta: Fierce warriors of the ancient world Lesson duration 04:28 Manage Library 3,889,214 Views
04:51 The Arts How ancient art influenced modern art Lesson duration 04:51 Manage Library 403,137 Views
05:21 Literature & Language The controversial origins of the Encyclopedia Lesson duration 05:21 Manage Library 458,732 Views