04:20 Life Sciences The ferocious predatory dinosaurs of Cretaceous Sahara Lesson duration 04:20 1,964,104 Views
02:39 The Arts Why babies in medieval paintings look like ugly old men Lesson duration 02:39 7,699,037 Views
05:31 Engineering Why don't perpetual motion machines ever work? Lesson duration 05:31 16,779,693 Views
01:40 History How the bendy straw was invented | Moments of Vision 12 Lesson duration 01:40 424,369 Views
04:33 History Who were the Vestal Virgins, and what was their job? Lesson duration 04:33 9,925,626 Views
13:57 Health What you can do to prevent Alzheimer's | Lisa Genova Lesson duration 13:57 3,279,773 Views
05:30 Environmental Science Meet The Frog That Barfs Up Its Babies Lesson duration 05:30 2,078,777 Views
05:07 Data Analysis & Probability Check your intuition: The birthday problem Lesson duration 05:07 2,823,471 Views
01:51 Social Studies How the popsicle was invented | Moments of Vision 11 Lesson duration 01:51 460,442 Views
