In Phil Plait’s talk from TEDxBoulder, “How to defend earth from asteroids,” he astonishes the audience, sharing how a single rock hurtling through space could damage our civilization as we know it. This weekend, TED Weekends on the Huffington Post features Plait’s spine-tingling talk. Below, some of our favorite essays from this edition, about those big […]
Fuel without fossils Jonathan Trent set out to understand if there was a way to develop biofuels that would compete with fossil fuels, but not compete with agriculture. His proposed solution is extraordinary: Make an enclosure with plastic and let algae grow in sunlight in the ocean, taking in wastewater from cities. Generated heat will be […]