Lisa Harouni: A primer on 3 D printing (2012)

2012 may be the year of 3D printing, when this threedecadeold technology finally becomes accessible and even commonplace. Lisa Harouni gives a useful introduction to this fascinating way of making things including intricate objects once impossible to create. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world s leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on