RT @newscientist: Always wondered how planets in our solar system maintain stable orbits? Watch this awesome animation to find out https://web.archive.org/web/20120531214301/http://www.newscientist.com/blogs/nstv/2012/05/one-minute-physics-why-planets-can-only-orbit-in-3d.html
(https://www.frederickcalica.com/?p=3365844)Stray Thoughts
about everything and nothing
