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19:39 Earth and Space Science Earth's mass extinction - Peter Ward Lesson duration 19:39 56,468 Views
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03:51 Medical Conditions The coming neurological epidemic - Gregory Petsko Lesson duration 03:51 38,235 Views
04:40 Social Psychology What Aristotle and Joshua Bell can teach us about persuasion Lesson duration 04:40 1,068,753 Views
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17:30 Consciousness, Sensation and Perception A plant's-eye view - Michael Pollan Lesson duration 17:30 88,766 Views
