Questions of good and evil, right and wrong are commonly thought unanswerable by science. But Sam Harris argues that science can -- and should -- be an authority on moral issues, shaping human values and setting out what constitutes a good life.
Every year, with bipartisan support, half a million people are locked up in prisons and detention centers while the government decides whether they'll be allowed to stay in the United States. How did we get here? Believe it or not, immigration hasn't always worked this way. Law professor César Cuauhtémoc García Hernández explains how and why we ...
The Electoral College, gerrymandering — and more! These talks answer your questions and simplify the confusing landscape of the US political system. (For more voting information specific to your location, please visit https://www.vote.org)
Why is algebra so hard? Math teacher Emmanuel Schanzer believes the problem with math lies in what we tell students math is. Learn how Schanzer's innovative online math curriculum teaches students to solve problems through design in this upbeat talk.
Death is a topic that is relevant to us all, and yet it simply isn’t pleasant to talk about. These speakers offer subtle reframes to help us face this fact of life more thoughtfully and with greater compassion.
Traditional lab tests for disease diagnosis can be too expensive and cumbersome for the regions most in need. George Whitesides' ingenious answer is a foolproof tool that can be manufactured at virtually zero cost.
In this joyful, heartfelt talk featuring demos of her wonderfully wacky creations, Simone Giertz shares her craft: making useless robots. Her inventions -- designed to chop vegetables, cut hair, apply lipstick and more -- rarely (if ever) succeed, and that's the point. "The true beauty of making useless things [is] this acknowledgment that you d...
What makes you, you? Is it how you think of yourself, how others think of you, or something else entirely? Philosopher Julian Baggini draws from philosophy and neuroscience to give a surprising answer.
How do dogs feel about their owners? In this talk, neuroscientist Dr. Gregory Berns explains how advanced brain imaging technologies could help us answer better understand the emotional bonds that exist between humans and our canine companions.
Plastics advocate Jeannette Garcia's accidental invention of a super-strong and fully biodegradable polymer could make today's environmental curse tomorrow's sustainable answer. The implications? Recyclable airplanes, dissolvable water bottles and dramatically diminished landfills.
Could there be intelligent life on other planets? This question has piqued imagination and curiosity for decades. Explore the answer with the Drake Equation -- a mathematical formula that calculates the possibility of undiscovered life. [Directed by Jeremiah Dickey, narrated by Jill Tarter].
Economist Yasheng Huang compares China to India, and asks how China's authoritarian rule contributed to its astonishing economic growth -- leading to a big question: Is democracy actually holding India back? Huang's answer may surprise you.