Random Talks

View full lesson: https://ed.ted.com/lessons/how-do-sol… The Earth intercepts a lot of solar power: 173,000 terawatts. That’s 10,000 times more

View full lesson: http://ed.ted.com/lessons/the-case-of… In the past decade, the US honeybee population has been decreasing at an alarming and u

View full lesson: http://ed.ted.com/lessons/how-a-wound… Our skin is the largest organ in our bodies, with a surface area of about 20 square fee

Steve Ramirez and Xu Liu shoot laser beams into the brains of living mice to activate and manipulate their memories. In a funny and — perhaps &#

Elaine Hsiao is a postdoctoral fellow in chemistry and biology at Caltech. She received her undergraduate degree in microbiology, immunology and molec

View full lesson: http://ed.ted.com/lessons/leigh-natar… Will it rain tomorrow? How likely is your favorite team to win the Super Bowl? Question

View full lesson: http://ed.ted.com/lessons/how-do-anim… To human eyes, the world at night is a formless canvas of grey. Many nocturnal animals,

Stacy Sims is all about connectedness. She is a novelist, playwright, entrepreneur, activist, dancer and traveler. As founder of the True Body Project

Charlie Marcus is Professor of Physics at Harvard. His research focuses on fabrication of submicron electronic structures — semiconductor quantu

View full lesson: http://ed.ted.com/lessons/what-is-dep… Depression is the leading cause of disability in the world; in the United States, close

View full lesson: http://ed.ted.com/lessons/how-playing… Made in partnership with the Always #LikeAGirl campaign. The victory of the underdog. T

View full lesson: http://ed.ted.com/lessons/the-last-ba… Imagine a game of dice: if the biggest number rolled is one, two, three, or four, playe

Karine Rathle is a dancer, teacher, choreographer and dance scientist with experience in ballet, contemporary dance, contact improvisation, Pilates, S

View full lesson: http://ed.ted.com/lessons/why-wildfir… Our early ancestors relied on lightning to cause forest fires, from which they could co

View full lesson: http://ed.ted.com/lessons/how-do-we-s… Your cell phone is mainly made of plastics and metals. It’s easy to appreciate the proc

View full lesson: http://ed.ted.com/lessons/the-turing-… What is consciousness? Can an artificial machine really think? For many, these have bee