Weekly does of TED – Tom Wujec demos the 13th-century astrolabe Posted on August 27, 2010April 30, 2010 By Andrew Thaler Uncategorized Share this: Share on Bluesky (Opens in new window) Bluesky Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on Threads (Opens in new window) Threads Share on WhatsApp (Opens in new window) WhatsApp Share on Mastodon (Opens in new window) Mastodon Related