TED is a nonprofit devoted to ideas worth spreading. On this video feed, you'll find TED Talks to inspire, intrigue and stir the imagination from some of the world's leading thinkers and doers, speaking from the stage at TED conferences, TEDx events and partner events around the world. This podcast is also available in SD video and audio-only formats.
https://www.ted.com/talks
How the compass unlocked the world | David Biello
"Everything that we think of as world history would not have taken place without the compass." TED science curator David Biello explains how the device changed our relationship to the world.