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01:05 Physical Science McDonald's Cup Sizes Around The World Lesson duration 01:05 Manage Library 5,272,655 Views
03:46 Science & Technology What triggers a chemical reaction? Lesson duration 03:46 Manage Library 844,719 Views
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05:18 Health How spontaneous brain activity keeps you alive Lesson duration 05:18 Manage Library 362,945 Views
04:43 Life Sciences The evolution of the human eye Lesson duration 04:43 Manage Library 1,411,934 Views
05:58 Science & Technology Underwater Explosions (Science with Alan Sailer!) Lesson duration 05:58 Manage Library 1,469,287 Views
05:45 Health The benefits of a good night's sleep Lesson duration 05:45 Manage Library 6,462,990 Views
05:39 Social Studies The Atlantic slave trade: What too few textbooks told you Lesson duration 05:39 Manage Library 11,077,761 Views
05:58 Social Studies The great conspiracy against Julius Caesar Lesson duration 05:58 Manage Library 8,703,081 Views
04:34 Religion The pharaoh that wouldn't be forgotten Lesson duration 04:34 Manage Library 4,540,624 Views
05:54 Earth and Space Science How to create cleaner coal Lesson duration 05:54 Manage Library 512,166 Views
05:23 Engineering The 2,400-year search for the atom Lesson duration 05:23 Manage Library 2,481,300 Views
04:01 Health What we know (and don't know) about Ebola Lesson duration 04:01 Manage Library 1,960,554 Views
04:27 Anthropology The hidden worlds within natural history museums Lesson duration 04:27 Manage Library 256,739 Views
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