TED Talks

Tom Wujec demos the 13th-century astrolabe (2009x196)

Air date: Nov 20, 2009

Rather than demo another new technology, Tom Wujec reaches back to one of our earliest but most ingenious devices -- the astrolabe. With thousands of uses, from telling time to mapping the night sky, this old tech reminds us that the ancient can be as brilliant as the brand-new.