http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/nova-einstein-hau.mp3 NOVA E = mc2 | Lene Hau http://www.pbs.org/wgbh/nova/rss/podcast/redir/http://www-tc.pbs.org/wgbh/nova/rss/media/nova-einstein-hau.mp3 2005-10-07 http://www.pbs.org/wgbh/nova/rss/podcast/redir/wgbh/nova/einstein/images/expe-hau.jpg