modelthought/2020/orbital_stuff, branch master [no description] https://git.bnewbold.net/modelthought/atom?h=master 2020-06-28T00:06:03+00:00 add references about orbital mechanics 2020-06-28T00:06:03+00:00 Bryan Newbold bnewbold@archive.org 2020-06-28T00:06:03+00:00 urn:sha1:65e7d3ed2821b2f90c8d8673d16f8b48e85e441d