07:13 Earth and Space Science What if everyone jumped at once? Lesson duration 07:13 Manage Library 39,615,899 Views
06:25 Earth and Space Science Carl Sagan on the Existence of Extraterrestrials Lesson duration 06:25 Manage Library 643,796 Views
04:42 Emotional Health An Exercise in Self Compassion Lesson duration 04:42 Manage Library 2,528,856 Views
02:54 Critical Thinking Are Good Looking People Jerks? Lesson duration 02:54 Manage Library 3,558,479 Views
16:03 Psychology The strongest predictor of how long you'll live Lesson duration 16:03 Manage Library 488,689 Views
04:41 Science & Technology A baffling balloon behavior Lesson duration 04:41 Manage Library 7,953,704 Views
04:03 Science & Technology The physics of a pool vortex Lesson duration 04:03 Manage Library 14,062,240 Views
04:46 Life Sciences What do food expiration dates actually mean? Lesson duration 04:46 Manage Library 262,277 Views