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06:40 Linguistics Why the ancient Greeks couldn't see blue Lesson duration 06:40 Manage Library 7,676,340 Views
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05:16 Thinking & Learning How fast is the speed of thought? Lesson duration 05:16 Manage Library 971,925 Views
12:37 Psychology How we can face the future without fear, together - Rabbi Lord Jonathan Sacks Lesson duration 12:37 Manage Library 264,007 Views
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12:39 Psychology 3 questions to ask yourself about everything you do - Stacey Abrams Lesson duration 12:39 Manage Library 1,447,105 Views
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05:44 Science & Technology What if there were 1 trillion more trees? Lesson duration 05:44 Manage Library 3,614,093 Views
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