04:34 Public Health How we conquered the deadly smallpox virus Lesson duration 04:34 Manage Library 8,837,253 Views
03:48 Physical Science The strengths and weaknesses of acids and bases Lesson duration 03:48 Manage Library 1,029,508 Views
03:56 Physical Science Why does ice float in water? Lesson duration 03:56 Manage Library 1,842,739 Views
03:48 Physical Science What is the shape of a molecule? Lesson duration 03:48 Manage Library 323,131 Views
03:47 Physical Science The uncertain location of electrons Lesson duration 03:47 Manage Library 884,957 Views
05:03 Physical Science Why don’t oil and water mix? Lesson duration 05:03 Manage Library 1,234,799 Views
04:08 Performing Arts The science of stage fright (and how to overcome it) Lesson duration 04:08 Manage Library 1,611,478 Views
04:00 Earth and Space Science Why extremophiles bode well for life beyond Earth Lesson duration 04:00 Manage Library 139,780 Views
03:57 Literature & Language Speech acts: Constative and performative Lesson duration 03:57 Manage Library 208,747 Views
04:33 History The most groundbreaking scientist you've never heard of Lesson duration 04:33 Manage Library 3,015,610 Views
04:16 Performing Arts Kabuki: The people's dramatic art Lesson duration 04:16 Manage Library 1,035,999 Views
05:21 Linguistics Are Elvish, Klingon, Dothraki and Na’vi real languages? Lesson duration 05:21 Manage Library 2,915,375 Views
04:18 Life Sciences The physics of human sperm vs. the physics of the sperm whale Lesson duration 04:18 Manage Library 4,371,260 Views
05:58 Science & Technology Light waves, visible and invisible Lesson duration 05:58 Manage Library 1,048,105 Views
04:10 Life Sciences Bird migration, a perilous journey Lesson duration 04:10 Manage Library 255,797 Views
04:08 History Urbanization and the evolution of cities across 10,000 years Lesson duration 04:08 Manage Library 2,651,396 Views