There are many walls in Belfast which physically separate Protestant neighborhoods from Catholic ones. Some are fences that you can see through, while others are made of bricks and steel. Many have clearly been reinforced over time: a cinderblock wall topped with corrugated iron, then topped with razor wire, stretching up towards the sky. Many of the walls in Northern Ireland went up in the 1970s and ‘80s at the height of what’s become known as “The Troubles.” Decades later, almost all of the walls remain standing. They cut across communities like monuments to the conflict, etched into the physical landscape. Taking them down isn’t going to be easy.
During the depths of the Depression in the late 1930s, 300 craftspeople came together for two years to build an enormous scale model of the City of San Francisco. This Works Progress Administration (WPA) project was conceived as a way of putting artists to work while also creating a planning tool for the city to imagine its future...
Original broadcast date: October 23, 2015. The era of open source has led to countless innovations. When does it work and when is it chaos? In this episode, TED speakers explore how open source is changing how we build, collaborate and govern.
Vivian Le is on a mission that requires equal parts science, philosophy, and daring, in search of something that’s been hotly contested for decades: the world's largest ball of twine.
Goodness Gracious Great Balls of Twine