http://netvouz.com/pdboyer/tag/elementary?feed=rss pdboyer's bookmarks tagged "elementary" on Netvouz http://www.sas.upenn.edu/home/news/troddenandabbate/trodden.html Research summary of old notions of the expanding universe and newer approach to explain how galaxies can to continue moving away from each other at ever-increasing velocities. Talks about Einstein's general theory of relativity -- movement being a curvature of space/time continuum (or something like this) pdboyer Sat, 06 Nov 2010 00:14:19 GMT http://www.education.com/activity/all-grades/all-grades/science/?cid=57000.0009&s_kwcid=ContentNetwork|1789201585&gclid=CNeFkpejwZYCFQa6sgodtiQIxg pdboyer Wed, 11 Feb 2009 03:53:37 GMT