* Vectors is an educational website with writings on science, technology, military technology, and history. All written materials on this website are the work of Greg Goebel and are free for all use. All images on this site marked "GVG" are also the work of Greg Goebel and are free for all use.
Proper citation of any materials taken from this site would be appreciated, and it is recommended that revision codes be retained. Top and bottom menus provide navigation -- including sitemap, updates, and Google search -- along with access to email, a blog, and a set of hyperlinks. A banner at the bottom of the page promotes a particular document each month, along with access to a comment board and a donations page. All sensible feedback is welcome.
"There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened."
-- Douglas Adams