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04:33 History The most groundbreaking scientist you've never heard of Lesson duration 04:33 Manage Library 3,015,154 Views
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04:18 Life Sciences The physics of human sperm vs. the physics of the sperm whale Lesson duration 04:18 Manage Library 4,371,021 Views
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04:10 Life Sciences Bird migration, a perilous journey Lesson duration 04:10 Manage Library 254,692 Views
04:08 History Urbanization and the evolution of cities across 10,000 years Lesson duration 04:08 Manage Library 2,640,549 Views
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04:13 History Why do Americans and Canadians celebrate Labor Day? Lesson duration 04:13 Manage Library 590,626 Views
03:45 Earth and Space Science Four ways to understand the Earth's age Lesson duration 03:45 Manage Library 682,273 Views
03:55 Psychology What is déjà vu? What is déjà vu? Lesson duration 03:55 Manage Library 4,999,486 Views
03:19 Physical Science The Higgs Field, explained Lesson duration 03:19 Manage Library 1,020,136 Views
04:46 Earth and Space Science Gravity and the human body Lesson duration 04:46 Manage Library 445,884 Views
