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05:06 Medical Conditions Is there a disease that makes us love cats? Lesson duration 05:06 1,966,809 Views
05:04 Literature & Language What makes something "Kafkaesque"? Lesson duration 05:04 13,525,757 Views
04:12 Design, Engineering & Technology How to fly around the world without fuel Lesson duration 04:12 40,876 Views
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07:13 Earth and Space Science What if everyone jumped at once? Lesson duration 07:13 40,306,512 Views
04:33 History Why wasn’t the Bill of Rights originally in the US Constitution? Lesson duration 04:33 1,084,348 Views
