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05:31 Social Studies Run, sail, or hide? How to survive the destruction of Pompeii Lesson duration 05:31 Manage Library 2,512,876 Views
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11:08 Psychology How compassion could save your strained relationships - Betty Hart Lesson duration 11:08 Manage Library 94,614 Views
04:59 Design, Engineering & Technology Why are airplanes slower than they used to be? Lesson duration 04:59 Manage Library 2,472,123 Views
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04:01 Science & Technology Which animal murders the most? Lesson duration 04:01 Manage Library 46,026 Views