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03:29 Science & Technology How deep is the ocean? Lesson duration 03:29 Manage Library 73,297,954 Views
08:07 Technology How do nuclear power plants work? Lesson duration 08:07 Manage Library 3,100,998 Views
06:26 Science & Technology How oceanographers found the Titanic Lesson duration 06:26 Manage Library 2,977,505 Views
05:10 Life Sciences Oxygen’s surprisingly complex journey through your body Lesson duration 05:10 Manage Library 3,031,936 Views
04:37 Cognition and Learning Why do people get so anxious about math? Lesson duration 04:37 Manage Library 2,876,966 Views
05:43 History What is McCarthyism? And how did it happen? Lesson duration 05:43 Manage Library 3,693,091 Views
07:15 Design, Engineering & Technology How the toilet changed history Lesson duration 07:15 Manage Library 2,240,438 Views
04:08 Earth and Space Science How small are we in the scale of the universe? Lesson duration 04:08 Manage Library 1,088,724 Views
04:57 Literature Everything you need to know to read Homer's "Odyssey" Lesson duration 04:57 Manage Library 1,943,571 Views
04:52 Nature of Science Mary's Room: A philosophical thought experiment Lesson duration 04:52 Manage Library 4,214,977 Views
05:08 Mathematics A brief history of numerical systems Lesson duration 05:08 Manage Library 1,006,772 Views
05:07 Life Sciences How do animals experience pain? Lesson duration 05:07 Manage Library 3,603,248 Views
04:56 Motivation and Emotion Would you sacrifice one person to save five? Lesson duration 04:56 Manage Library 5,153,942 Views
04:35 Motivation and Emotion Why are we so attached to our things? Lesson duration 04:35 Manage Library 2,641,973 Views
05:00 Mathematics Why do airlines sell too many tickets? Lesson duration 05:00 Manage Library 2,505,224 Views