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05:31 Engineering Why don't perpetual motion machines ever work? Lesson duration 05:31 16,883,455 Views
01:40 History How the bendy straw was invented | Moments of Vision 12 Lesson duration 01:40 425,156 Views
04:33 History Who were the Vestal Virgins, and what was their job? Lesson duration 04:33 9,947,634 Views
13:57 Health What you can do to prevent Alzheimer's | Lisa Genova Lesson duration 13:57 3,290,860 Views
05:30 Environmental Science Meet The Frog That Barfs Up Its Babies Lesson duration 05:30 2,080,554 Views
05:07 Data Analysis & Probability Check your intuition: The birthday problem Lesson duration 05:07 2,837,729 Views
01:51 Social Studies How the popsicle was invented | Moments of Vision 11 Lesson duration 01:51 462,673 Views
05:10 Literature Why should you read Tolstoy's "War and Peace"? Lesson duration 05:10 5,424,594 Views
09:45 Science & Technology Why humans are so bad at thinking about climate change Lesson duration 09:45 2,526,789 Views
