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03:35 Technology How did trains standardize time in the United States? Lesson duration 03:35 Manage Library 234,843 Views
03:52 Physical Science How polarity makes water behave strangely Lesson duration 03:52 Manage Library 1,126,992 Views
21:20 Sociology Our loss of wisdom - Barry Schwartz Lesson duration 21:20 Manage Library 88,483 Views
19:39 Earth and Space Science Earth's mass extinction - Peter Ward Lesson duration 19:39 Manage Library 56,326 Views
03:56 Life Sciences What if we could look inside human brains? Lesson duration 03:56 Manage Library 220,443 Views
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02:50 Literature In on a secret? That’s dramatic irony Lesson duration 02:50 Manage Library 1,761,753 Views
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03:51 Medical Conditions The coming neurological epidemic - Gregory Petsko Lesson duration 03:51 Manage Library 38,087 Views
03:56 Environmental Science Do the green thing - Andy Hobsbawm Lesson duration 03:56 Manage Library 32,297 Views
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19:17 Civics Learning from past presidents - Doris Kearns Goodwin Lesson duration 19:17 Manage Library 73,739 Views
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04:24 Physical Science Is light a particle or a wave? Lesson duration 04:24 Manage Library 1,661,522 Views
08:58 Motivation and Emotion Write your story, change history Lesson duration 08:58 Manage Library 230,520 Views
03:47 Numbers & Operations How to defeat a dragon with math Lesson duration 03:47 Manage Library 4,602,835 Views
04:40 Social Psychology What Aristotle and Joshua Bell can teach us about persuasion Lesson duration 04:40 Manage Library 1,052,066 Views
04:22 History How to find the true face of Leonardo - Siegfried Woldhek Lesson duration 04:22 Manage Library 103,696 Views
