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03:35 Technology How did trains standardize time in the United States? Lesson duration 03:35 Manage Library 233,648 Views
03:52 Physical Science How polarity makes water behave strangely Lesson duration 03:52 Manage Library 1,119,565 Views
03:56 Life Sciences What if we could look inside human brains? Lesson duration 03:56 Manage Library 220,014 Views
04:52 Earth and Space Science Life of an astronaut Lesson duration 04:52 Manage Library 701,143 Views
02:50 Literature In on a secret? That’s dramatic irony Lesson duration 02:50 Manage Library 1,753,655 Views
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06:00 Writing/Composition Slowing down time (in writing & film) Lesson duration 06:00 Manage Library 221,042 Views
04:24 Physical Science Is light a particle or a wave? Lesson duration 04:24 Manage Library 1,651,201 Views
08:58 Motivation and Emotion Write your story, change history Lesson duration 08:58 Manage Library 229,930 Views
03:47 Numbers & Operations How to defeat a dragon with math Lesson duration 03:47 Manage Library 4,578,176 Views
04:40 Social Psychology What Aristotle and Joshua Bell can teach us about persuasion Lesson duration 04:40 Manage Library 1,044,673 Views
03:42 Environmental Science Phenology and nature's shifting rhythms Lesson duration 03:42 Manage Library 98,176 Views
03:23 Physical Science Activation energy: Kickstarting chemical reactions Lesson duration 03:23 Manage Library 235,850 Views
06:39 Philosophy Detention or Eco Club: Choosing your future Lesson duration 06:39 Manage Library 42,646 Views
03:15 Earth and Space Science Conserving our spectacular, vulnerable coral reefs Lesson duration 03:15 Manage Library 125,067 Views
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