00629nam a2200109Ia 4500008004100000245003300041300027700074650001300351856006400364999001900428952007200447170517s9999    xx            000 0 und d  aDo You Know What Time It Is?  aParticle physicist Professor Brian Cox asks, 'What time is it?' It's a simple question and it sounds like it has a simple answer. But do we really know what it is that we're asking? Brian visits the ancient Mayan pyramids in Mexico where the Maya built temples to time....  xScience.  uhttp://topdocumentaryfilms.com/do-you-know-what-time-it-is/  c334195d334195  001040aCLbCLd2017-05-17l0r2017-05-17 00:00:00w2017-05-17yDF