Research Realm:Good articles

Some articles I have arbitrarily decided are "good" now without really consulting anyone else here. Note that "good" here more means I can't think of anything else to add to them, or that more research is needed before anything else can be written, and thus they are "complete". If you think they have any glaring issues and need a rewrite feel free to try.

Even if the articles seem complete, check the talk pages to see if there's a to-do list there!