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05:05 Science & Technology What is the rarest color in nature? Lesson duration 05:05 Manage Library 1,173,810 Views
06:17 Thinking & Learning Can you outsmart the college admissions fallacy? Lesson duration 06:17 Manage Library 857,596 Views
04:20 Philosophy Ethical dilemma: Would you lie? Lesson duration 04:20 Manage Library 1,232,087 Views
05:23 Mathematics Can you solve the fortress riddle? Lesson duration 05:23 Manage Library 1,414,874 Views
06:33 Social Studies Ugly History: The Khmer Rouge murders Lesson duration 06:33 Manage Library 2,052,552 Views
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09:17 Thinking & Learning Give yourself permission to be creative - Ethan Hawke Lesson duration 09:17 Manage Library 3,029,600 Views
04:39 Business & Economics Do tax cuts stimulate the economy? Lesson duration 04:39 Manage Library 373,010 Views
04:59 Social Studies The biggest mistakes in mapmaking history Lesson duration 04:59 Manage Library 1,001,084 Views
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05:22 Design, Engineering & Technology How the Suez Canal changed the world Lesson duration 05:22 Manage Library 873,000 Views
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06:17 Mathematics Can you solve the private eye riddle? Lesson duration 06:17 Manage Library 1,514,116 Views
05:10 Science & Technology Why are cockroaches so hard to kill? Lesson duration 05:10 Manage Library 3,700,689 Views
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05:55 Social Studies History vs. Tamerlane the Conqueror Lesson duration 05:55 Manage Library 895,149 Views
05:10 Science & Technology Are the Northern Lights dangerous? Lesson duration 05:10 Manage Library 496,183 Views
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