Sean Carroll: Distant time and the hint of a multiverse
Cosmologist Sean Carroll attacks — in an entertaining and thought-provoking tour through the nature of time and the universe — a deceptively simple question: Why does time exist at all?
David Steindl-Rast: Want to be happy? Be grateful
The one thing all humans have in common is that each of us wants to be happy, says Brother David Steindl-Rast, a monk and interfaith scholar.
Henry Evans and Chad Jenkins: Meet the robots for humanity
Paralyzed by a stroke, Henry Evans uses a telepresence robot to take the stage — and show how new robotics, tweaked and personalized by a group called Robots for Humanity, help him live his life. He shows off a nimble little quadrotor drone, created by a team led by Chad Jenkins, that gives him the…
Andreas Raptopoulos: No roads? There’s a drone for that
A billion people in the world lack access to all-season roads. Could the structure of the internet provide a model for how to reach them? Andreas Raptopoulos of Matternet thinks so. He introduces a new type of transportation system that uses electric autonomous flying machines to deliver medicine, food, goods and supplies wherever they are…
melt your mind 