http://netvouz.com/scottjackson/tag/motion?feed=rss scottjackson's bookmarks tagged "motion" on Netvouz http://www.lhup.edu/~dsimanek/museum/people/people.htm Popular histories too often present perpetual motion machines as "freaks and curiosities" of engineering without telling us just how they were understood at the time. They also fail to inform us that even in the earliest history of science and engineering scottjackson Sat, 08 Dec 2007 04:00:02 GMT