04:22 Mathematics How a 15-year-old solved a Rubik's Cube in 5.25 seconds Lesson duration 04:22 10,568,696 Views
05:41 Education Policy Should we get rid of standardized testing? Lesson duration 05:41 1,268,788 Views
05:17 Geometry How many ways are there to prove the Pythagorean theorem? Lesson duration 05:17 3,924,691 Views
04:56 Physical Science How to squeeze electricity out of crystals Lesson duration 04:56 699,525 Views
05:31 Engineering Why don't perpetual motion machines ever work? Lesson duration 05:31 17,405,052 Views
05:07 Data Analysis & Probability Check your intuition: The birthday problem Lesson duration 05:07 2,895,385 Views
04:37 Cognition and Learning Why do people get so anxious about math? Lesson duration 04:37 3,071,010 Views
