Netvouz / richter / tag / truth http://netvouz.com/richter/tag/truth?feed=rss richter's bookmarks tagged "truth" on Netvouz No Escape: The Truth about Black Holes http://amazing-space.stsci.edu/resources/explorations/blackholes/lesson/index.html The Truth about Black Holes - An Amazing Space activity designed to teach students about black holes. Fyzika > Relativita > Černé díry richter Wed, 07 Sep 2011 19:00:07 GMT